From df6ab3991c7dfcc8f0522da358947615236214c2 Mon Sep 17 00:00:00 2001
From: Patrick Jentsch <p.jentsch@uni-bielefeld.de>
Date: Tue, 8 Feb 2022 12:26:20 +0100
Subject: [PATCH] Use enums where appropriate. This commit includes new
 migrations that are NOT compatible with older nopaque instances

---
 app/admin/forms.py                            |  17 +-
 app/admin/routes.py                           | 107 +++++++--
 app/api/auth.py                               |   2 +-
 app/api/tokens.py                             |   2 +-
 app/auth/forms.py                             |  53 +++--
 app/auth/routes.py                            | 122 +++++++----
 app/contribute/routes.py                      |   8 +-
 app/corpora/cqi_over_socketio/__init__.py     |  11 +-
 app/corpora/forms.py                          |   9 +-
 app/corpora/query_results_routes.py           |   4 +-
 app/corpora/query_results_tasks.py            |  13 ++
 app/corpora/routes.py                         | 181 +++++++++------
 app/corpora/tasks.py                          |  16 +-
 app/daemon/corpus_utils.py                    |  58 ++---
 app/daemon/job_utils.py                       |  30 +--
 app/events/socketio.py                        |   7 +-
 app/events/sqlalchemy.py                      |  62 +++---
 app/jobs/routes.py                            |  53 +++--
 app/jobs/tasks.py                             |   6 +-
 app/main/routes.py                            |  16 +-
 app/models.py                                 | 206 +++++++++---------
 app/query_results_models.py                   |  62 ++++++
 app/services/forms.py                         |  16 +-
 app/services/routes.py                        |  25 ++-
 app/settings/forms.py                         | 107 +++++----
 app/settings/routes.py                        | 120 +++++-----
 app/settings/tasks.py                         |   6 +-
 app/static/css/nopaque.css                    |  60 +++--
 app/static/css/nopaque_icons.css              |  10 +-
 app/static/js/App.js                          |   2 +-
 app/static/js/JobStatusNotifier.js            |   2 +-
 .../js/RessourceDisplays/CorpusDisplay.js     |  17 +-
 app/static/js/RessourceDisplays/JobDisplay.js |  14 +-
 .../js/RessourceLists/CorpusFileList.js       |  26 +--
 app/static/js/RessourceLists/CorpusList.js    |  22 +-
 app/static/js/RessourceLists/JobInputList.js  |  14 +-
 app/static/js/RessourceLists/JobList.js       |  34 +--
 app/static/js/RessourceLists/JobResultList.js |  12 +-
 .../js/RessourceLists/QueryResultList.js      |  22 +-
 app/static/js/RessourceLists/UserList.js      |  25 ++-
 app/templates/_colors.html.j2                 |  30 ++-
 app/templates/_sidenav.html.j2                |  12 +-
 app/templates/_styles.html.j2                 |  44 ++--
 app/templates/admin/edit_user.html.j2         | 166 +++++++++-----
 app/templates/corpora/add_corpus.html.j2      |   2 +-
 app/templates/corpora/add_corpus_file.html.j2 |   2 +-
 app/templates/corpora/analyse_corpus.html.j2  |   4 +-
 app/templates/corpora/corpus.html.j2          |  14 +-
 app/templates/corpora/corpus_file.html.j2     |   2 +-
 app/templates/corpora/import_corpus.html.j2   |   2 +-
 app/templates/jobs/job.html.j2                |  10 +-
 app/templates/main/dashboard.html.j2          |  22 +-
 app/templates/main/index.html.j2              |  28 +--
 .../services/corpus_analysis.html.j2          |   4 +-
 app/templates/services/file_setup.html.j2     |   6 +-
 app/templates/services/spacy_nlp.html.j2      |   6 +-
 app/templates/services/tesseract_ocr.html.j2  |   6 +-
 app/templates/settings/_breadcrumbs.html.j2   |   8 +-
 app/templates/settings/_menu.html.j2          |   5 -
 .../settings/change_password.html.j2          |  36 ---
 .../settings/edit_general_settings.html.j2    |  81 -------
 .../edit_notification_settings.html.j2        |  35 ---
 app/templates/settings/index.html.j2          | 123 +++++++++++
 .../tasks/email/notification.html.j2          |   2 +-
 app/templates/tasks/email/notification.txt.j2 |   2 +-
 migrations/README                             |   2 +-
 migrations/alembic.ini                        |   7 +-
 migrations/env.py                             |  15 +-
 .../{da9fd175af8c_.py => 097aae1f02d7_.py}    |  79 +++++--
 migrations/versions/099037c4aa06_.py          |  30 ---
 migrations/versions/0aa38a7973c5_.py          |  28 ---
 migrations/versions/0d7aed934679_.py          |  28 ---
 migrations/versions/10a92d8f4616_.py          |  30 ---
 migrations/versions/1210adfe1e34_.py          |  28 ---
 migrations/versions/318074622d14_.py          |  28 ---
 migrations/versions/33ec4d09b4ca_.py          |  30 ---
 migrations/versions/389bcf564726_.py          |  28 ---
 migrations/versions/3d9a20b8b26c_.py          |  28 ---
 migrations/versions/421ba4373e50_.py          |  33 ---
 migrations/versions/4638e6509e13_.py          |  38 ----
 migrations/versions/471aa04c1a92_.py          |  38 ----
 migrations/versions/4886241e0f5d_.py          |  28 ---
 migrations/versions/49a42c69e523_.py          |  36 ---
 migrations/versions/4cf5e5606a83_.py          |  35 ---
 migrations/versions/55d2b1a82ba9_.py          |  30 ---
 migrations/versions/5ba6786a847e_.py          |  42 ----
 migrations/versions/62233e0cb2c7_.py          |  34 ---
 migrations/versions/6227310c2112_.py          |  30 ---
 migrations/versions/66253783654f_.py          |  30 ---
 migrations/versions/68772b6560c3_.py          |  28 ---
 migrations/versions/68ed092ffe5e_.py          |  50 -----
 migrations/versions/6c2227f1cc77_.py          |  59 -----
 migrations/versions/7378391345fa_.py          |  28 ---
 migrations/versions/776761fb7466_.py          |  32 ---
 migrations/versions/790ce9512e75_.py          |  42 ----
 migrations/versions/8b2e0d43384a_.py          |  28 ---
 migrations/versions/9d21b228d353_.py          |  50 -----
 migrations/versions/a4b3cf4ab098_.py          |  30 ---
 migrations/versions/abf60427ff84_.py          |  32 ---
 migrations/versions/ad0d835fe5b1_.py          |  45 ----
 migrations/versions/b15366b25bea_.py          |  42 ----
 migrations/versions/be010d5d708d_.py          |  28 ---
 migrations/versions/befe5326787e_.py          |  30 ---
 migrations/versions/c3827cddea6e_.py          |  43 ----
 migrations/versions/c384d7b3268a_.py          |  32 ---
 migrations/versions/ded5a37f8a7b_.py          |  44 ----
 migrations/versions/e256f5cac75d_.py          |  30 ---
 migrations/versions/ecaf75fece7b_.py          |  28 ---
 nopaque.py                                    |  14 +-
 requirements.txt                              |   3 +-
 110 files changed, 1386 insertions(+), 2298 deletions(-)
 create mode 100644 app/corpora/query_results_tasks.py
 create mode 100644 app/query_results_models.py
 delete mode 100644 app/templates/settings/_menu.html.j2
 delete mode 100644 app/templates/settings/change_password.html.j2
 delete mode 100644 app/templates/settings/edit_general_settings.html.j2
 delete mode 100644 app/templates/settings/edit_notification_settings.html.j2
 create mode 100644 app/templates/settings/index.html.j2
 rename migrations/versions/{da9fd175af8c_.py => 097aae1f02d7_.py} (53%)
 delete mode 100644 migrations/versions/099037c4aa06_.py
 delete mode 100644 migrations/versions/0aa38a7973c5_.py
 delete mode 100644 migrations/versions/0d7aed934679_.py
 delete mode 100644 migrations/versions/10a92d8f4616_.py
 delete mode 100644 migrations/versions/1210adfe1e34_.py
 delete mode 100644 migrations/versions/318074622d14_.py
 delete mode 100644 migrations/versions/33ec4d09b4ca_.py
 delete mode 100644 migrations/versions/389bcf564726_.py
 delete mode 100644 migrations/versions/3d9a20b8b26c_.py
 delete mode 100644 migrations/versions/421ba4373e50_.py
 delete mode 100644 migrations/versions/4638e6509e13_.py
 delete mode 100644 migrations/versions/471aa04c1a92_.py
 delete mode 100644 migrations/versions/4886241e0f5d_.py
 delete mode 100644 migrations/versions/49a42c69e523_.py
 delete mode 100644 migrations/versions/4cf5e5606a83_.py
 delete mode 100644 migrations/versions/55d2b1a82ba9_.py
 delete mode 100644 migrations/versions/5ba6786a847e_.py
 delete mode 100644 migrations/versions/62233e0cb2c7_.py
 delete mode 100644 migrations/versions/6227310c2112_.py
 delete mode 100644 migrations/versions/66253783654f_.py
 delete mode 100644 migrations/versions/68772b6560c3_.py
 delete mode 100644 migrations/versions/68ed092ffe5e_.py
 delete mode 100644 migrations/versions/6c2227f1cc77_.py
 delete mode 100644 migrations/versions/7378391345fa_.py
 delete mode 100644 migrations/versions/776761fb7466_.py
 delete mode 100644 migrations/versions/790ce9512e75_.py
 delete mode 100644 migrations/versions/8b2e0d43384a_.py
 delete mode 100644 migrations/versions/9d21b228d353_.py
 delete mode 100644 migrations/versions/a4b3cf4ab098_.py
 delete mode 100644 migrations/versions/abf60427ff84_.py
 delete mode 100644 migrations/versions/ad0d835fe5b1_.py
 delete mode 100644 migrations/versions/b15366b25bea_.py
 delete mode 100644 migrations/versions/be010d5d708d_.py
 delete mode 100644 migrations/versions/befe5326787e_.py
 delete mode 100644 migrations/versions/c3827cddea6e_.py
 delete mode 100644 migrations/versions/c384d7b3268a_.py
 delete mode 100644 migrations/versions/ded5a37f8a7b_.py
 delete mode 100644 migrations/versions/e256f5cac75d_.py
 delete mode 100644 migrations/versions/ecaf75fece7b_.py

diff --git a/app/admin/forms.py b/app/admin/forms.py
index eb0ed231..30d99448 100644
--- a/app/admin/forms.py
+++ b/app/admin/forms.py
@@ -1,13 +1,16 @@
-from wtforms import BooleanField, SelectField
-from ..models import Role
-from ..settings.forms import EditGeneralSettingsForm
+from app.models import Role
+from flask_wtf import FlaskForm
+from wtforms import BooleanField, SelectField, SubmitField
 
 
-class EditGeneralSettingsAdminForm(EditGeneralSettingsForm):
+class AdminEditUserForm(FlaskForm):
     confirmed = BooleanField('Confirmed')
-    role = SelectField('Role', coerce=int)
+    role = SelectField('Role')
+    submit = SubmitField('Submit')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.role.choices = [(role.id, role.name)
-                             for role in Role.query.order_by(Role.name).all()]
+        self.role.choices = [
+            (role.hashid, role.name)
+            for role in Role.query.order_by(Role.name).all()
+        ]
diff --git a/app/admin/routes.py b/app/admin/routes.py
index 7979243d..79f05e19 100644
--- a/app/admin/routes.py
+++ b/app/admin/routes.py
@@ -1,11 +1,16 @@
+from app import db, hashids
+from app.decorators import admin_required
+from app.models import JobStatusMailNotificationLevel, Role, User
+from app.settings import tasks as settings_tasks
+from app.settings.forms import (
+    EditGeneralSettingsForm,
+    EditInterfaceSettingsForm,
+    EditNotificationSettingsForm
+)
 from flask import flash, redirect, render_template, url_for
 from flask_login import login_required
 from . import bp
-from .forms import EditGeneralSettingsAdminForm
-from .. import db
-from ..decorators import admin_required
-from ..models import Role, User
-from ..settings import tasks as settings_tasks
+from .forms import AdminEditUserForm
 
 
 @bp.before_request
@@ -26,10 +31,15 @@ def index():
 
 @bp.route('/users')
 def users():
-    dict_users = {user.id: user.to_dict(backrefs=True, relationships=False)
-                  for user in User.query.all()}
+    dict_users = {
+        user.id: user.to_dict(backrefs=True, relationships=False)
+        for user in User.query.all()
+    }
     return render_template(
-        'admin/users.html.j2', title='Users', dict_users=dict_users)
+        'admin/users.html.j2',
+        dict_users=dict_users,
+        title='Users'
+    )
 
 
 @bp.route('/users/<hashid:user_id>')
@@ -41,27 +51,76 @@ def user(user_id):
 @bp.route('/users/<hashid:user_id>/delete')
 def delete_user(user_id):
     settings_tasks.delete_user(user_id)
-    flash('User has been marked for deletion!')
+    flash('User has been marked for deletion')
     return redirect(url_for('.users'))
 
 
-@bp.route('/users/<hashid:user_id>/edit', methods=['GET', 'POST'])  # noqa
+@bp.route('/users/<hashid:user_id>/edit', methods=['GET', 'POST'])
 def edit_user(user_id):
     user = User.query.get_or_404(user_id)
-    form = EditGeneralSettingsAdminForm(user)
-    if form.validate_on_submit():
-        user.setting_dark_mode = form.dark_mode.data
-        user.email = form.email.data
-        user.username = form.username.data
-        user.confirmed = form.confirmed.data
-        user.role = Role.query.get(form.role.data)
+    admin_edit_user_form = AdminEditUserForm(
+        prefix='admin_edit_user_form'
+    )
+    edit_general_settings_form = EditGeneralSettingsForm(
+        user,
+        prefix='edit_general_settings_form'
+    )
+    edit_interface_settings_form = EditInterfaceSettingsForm(
+        prefix='edit_interface_settings_form'
+    )
+    edit_notification_settings_form = EditNotificationSettingsForm(
+        prefix='edit_notification_settings_form'
+    )
+    if (
+        admin_edit_user_form.submit.data
+        and admin_edit_user_form.validate()
+    ):
+        user.confirmed = admin_edit_user_form.confirmed.data
+        role_id = hashids.decode(admin_edit_user_form.role.data)
+        user.role = Role.query.get(role_id)
+        flash('Your changes have been saved')
+        return redirect(url_for('.edit_user', user_id=user.id))
+    if (
+        edit_general_settings_form.submit.data
+        and edit_general_settings_form.validate()
+    ):
+        user.email = edit_general_settings_form.email.data
+        user.username = edit_general_settings_form.username.data
+        db.session.commit()
+        flash('Your changes have been saved')
+        return redirect(url_for('.edit_user', user_id=user.id))
+    if (
+        edit_interface_settings_form.submit.data
+        and edit_interface_settings_form.validate()
+    ):
+        user.setting_dark_mode = edit_interface_settings_form.dark_mode.data
+        db.session.commit()
+        flash('Your changes have been saved')
+        return redirect(url_for('.edit_user', user_id=user.id))
+    if (
+        edit_notification_settings_form.submit.data
+        and edit_notification_settings_form.validate()
+    ):
+        user.setting_job_status_mail_notification_level = \
+            JobStatusMailNotificationLevel[
+                edit_notification_settings_form.job_status_mail_notification_level.data  # noqa
+            ]
         db.session.commit()
-        flash('Settings have been updated.')
+        flash('Your changes have been saved')
         return redirect(url_for('.edit_user', user_id=user.id))
-    form.confirmed.data = user.confirmed
-    form.dark_mode.data = user.setting_dark_mode
-    form.email.data = user.email
-    form.role.data = user.role_id
-    form.username.data = user.username
+    admin_edit_user_form.confirmed.data = user.confirmed
+    admin_edit_user_form.role.data = user.role.hashid
+    edit_general_settings_form.email.data = user.email
+    edit_general_settings_form.username.data = user.username
+    edit_interface_settings_form.dark_mode.data = user.setting_dark_mode
+    edit_notification_settings_form.job_status_mail_notification_level.data = \
+        user.setting_job_status_mail_notification_level.name
     return render_template(
-        'admin/edit_user.html.j2', form=form, title='Edit user', user=user)
+        'admin/edit_user.html.j2',
+        admin_edit_user_form=admin_edit_user_form,
+        edit_general_settings_form=edit_general_settings_form,
+        edit_interface_settings_form=edit_interface_settings_form,
+        edit_notification_settings_form=edit_notification_settings_form,
+        title='Edit user',
+        user=user
+    )
diff --git a/app/api/auth.py b/app/api/auth.py
index fea4123b..4c6a3dd9 100644
--- a/app/api/auth.py
+++ b/app/api/auth.py
@@ -1,7 +1,7 @@
+from app.models import User
 from flask_httpauth import HTTPBasicAuth, HTTPTokenAuth
 from sqlalchemy import or_
 from werkzeug.http import HTTP_STATUS_CODES
-from ..models import User
 
 basic_auth = HTTPBasicAuth()
 token_auth = HTTPTokenAuth()
diff --git a/app/api/tokens.py b/app/api/tokens.py
index 2eebbfb7..e1b55527 100644
--- a/app/api/tokens.py
+++ b/app/api/tokens.py
@@ -1,6 +1,6 @@
+from app import db
 from flask_restx import Namespace, Resource
 from .auth import basic_auth, token_auth
-from .. import db
 
 
 ns = Namespace('tokens', description='Token operations')
diff --git a/app/auth/forms.py b/app/auth/forms.py
index 8509bc44..a418bc51 100644
--- a/app/auth/forms.py
+++ b/app/auth/forms.py
@@ -1,9 +1,14 @@
-from . import USERNAME_REGEX
-from ..models import User
+from app.models import User
 from flask_wtf import FlaskForm
-from wtforms import (BooleanField, PasswordField, StringField, SubmitField,
-                     ValidationError)
+from wtforms import (
+    BooleanField,
+    PasswordField,
+    StringField,
+    SubmitField,
+    ValidationError
+)
 from wtforms.validators import DataRequired, Email, EqualTo, Length, Regexp
+from . import USERNAME_REGEX
 
 
 class LoginForm(FlaskForm):
@@ -17,42 +22,54 @@ class RegistrationForm(FlaskForm):
     email = StringField('Email', validators=[DataRequired(), Email()])
     username = StringField(
         'Username',
-        validators=[DataRequired(), Length(1, 64),
-                    Regexp(USERNAME_REGEX,
-                           message='Usernames must have only letters, numbers,'
-                                   ' dots or underscores')]
+        validators=[
+            DataRequired(),
+            Length(1, 64),
+            Regexp(
+                USERNAME_REGEX,
+                message='Usernames must have only letters, numbers, dots or underscores'  # noqa
+           )
+       ]
     )
     password = PasswordField(
         'Password',
-        validators=[DataRequired(), EqualTo('password_confirmation',
-                                            message='Passwords must match.')]
+        validators=[
+            DataRequired(),
+            EqualTo('password_confirmation', message='Passwords must match')
+        ]
     )
     password_confirmation = PasswordField(
         'Password confirmation',
-        validators=[DataRequired(), EqualTo('password',
-                                            message='Passwords must match.')]
+        validators=[
+            DataRequired(),
+            EqualTo('password', message='Passwords must match')
+        ]
     )
     submit = SubmitField('Register')
 
     def validate_email(self, field):
         if User.query.filter_by(email=field.data.lower()).first():
-            raise ValidationError('Email already registered.')
+            raise ValidationError('Email already registered')
 
     def validate_username(self, field):
         if User.query.filter_by(username=field.data).first():
-            raise ValidationError('Username already in use.')
+            raise ValidationError('Username already in use')
 
 
 class ResetPasswordForm(FlaskForm):
     password = PasswordField(
         'New password',
-        validators=[DataRequired(), EqualTo('password_confirmation',
-                                            message='Passwords must match.')]
+        validators=[
+            DataRequired(),
+            EqualTo('password_confirmation', message='Passwords must match')
+        ]
     )
     password_confirmation = PasswordField(
         'Password confirmation',
-        validators=[DataRequired(),
-                    EqualTo('password', message='Passwords must match.')]
+        validators=[
+            DataRequired(),
+            EqualTo('password', message='Passwords must match')
+        ]
     )
     submit = SubmitField('Reset Password')
 
diff --git a/app/auth/routes.py b/app/auth/routes.py
index 35842251..045d0baf 100644
--- a/app/auth/routes.py
+++ b/app/auth/routes.py
@@ -1,15 +1,25 @@
+from app import db
+from app.email import create_message, send
+from app.models import User
 from datetime import datetime
-from flask import (abort, current_app, flash, redirect, render_template,
-                   request, url_for)
+from flask import (
+    abort,
+    current_app,
+    flash,
+    redirect,
+    render_template,
+    request,
+    url_for
+)
 from flask_login import current_user, login_user, login_required, logout_user
 from sqlalchemy import or_
 from . import bp
-from .forms import (LoginForm, ResetPasswordForm, ResetPasswordRequestForm,
-                    RegistrationForm)
-from .. import db
-from ..email import create_message, send
-from ..models import User
-import os
+from .forms import (
+    LoginForm,
+    ResetPasswordForm,
+    ResetPasswordRequestForm,
+    RegistrationForm
+)
 
 
 @bp.before_app_request
@@ -21,10 +31,12 @@ def before_request():
     if current_user.is_authenticated:
         current_user.last_seen = datetime.utcnow()
         db.session.commit()
-        if (not current_user.confirmed
-                and request.endpoint
-                and request.blueprint != 'auth'
-                and request.endpoint != 'static'):
+        if (
+            not current_user.confirmed
+            and request.endpoint
+            and request.blueprint != 'auth'
+            and request.endpoint != 'static'
+        ):
             return redirect(url_for('auth.unconfirmed'))
 
 
@@ -34,15 +46,19 @@ def login():
         return redirect(url_for('main.dashboard'))
     form = LoginForm(prefix='login-form')
     if form.validate_on_submit():
-        user = User.query.filter(or_(User.username == form.user.data,
-                                     User.email == form.user.data.lower())).first()
+        user = User.query.filter(
+            or_(
+                User.username == form.user.data,
+                User.email == form.user.data.lower()
+            )
+        ).first()
         if user and user.verify_password(form.password.data):
             login_user(user, form.remember_me.data)
             next = request.args.get('next')
             if next is None or not next.startswith('/'):
                 next = url_for('main.dashboard')
             return redirect(next)
-        flash('Invalid email/username or password.')
+        flash('Invalid email/username or password', category='error')
     return render_template('auth/login.html.j2', form=form, title='Log in')
 
 
@@ -50,7 +66,7 @@ def login():
 @login_required
 def logout():
     logout_user()
-    flash('You have been logged out.')
+    flash('You have been logged out')
     return redirect(url_for('main.index'))
 
 
@@ -73,19 +89,20 @@ def register():
         except OSError as e:
             current_app.logger.error(e)
             db.session.rollback()
+            flash('Internal Server Error', category='error')
             abort(500)
-        else:
-            token = user.generate_confirmation_token()
-            msg = create_message(
-                user.email,
-                'Confirm Your Account',
-                'auth/email/confirm',
-                token=token,
-                user=user
-            )
-            send(msg)
-            flash('A confirmation email has been sent to you by email.')
-            return redirect(url_for('.login'))
+        token = user.generate_confirmation_token()
+        msg = create_message(
+            user.email,
+            'Confirm Your Account',
+            'auth/email/confirm',
+            token=token,
+            user=user
+        )
+        send(msg)
+        flash('A confirmation email has been sent to you by email')
+        db.session.commit()
+        return redirect(url_for('.login'))
     return render_template(
         'auth/register.html.j2',
         form=form,
@@ -100,10 +117,13 @@ def confirm(token):
         return redirect(url_for('main.dashboard'))
     if current_user.confirm(token):
         db.session.commit()
-        flash('You have confirmed your account. Thanks!')
+        flash('You have confirmed your account')
         return redirect(url_for('main.dashboard'))
     else:
-        flash('The confirmation link is invalid or has expired.')
+        flash(
+            'The confirmation link is invalid or has expired',
+            category='error'
+        )
         return redirect(url_for('.unconfirmed'))
 
 
@@ -120,10 +140,15 @@ def unconfirmed():
 @login_required
 def resend_confirmation():
     token = current_user.generate_confirmation_token()
-    msg = create_message(current_user.email, 'Confirm Your Account',
-                         'auth/email/confirm', token=token, user=current_user)
+    msg = create_message(
+        current_user.email,
+        'Confirm Your Account',
+        'auth/email/confirm',
+        token=token,
+        user=current_user
+    )
     send(msg)
-    flash('A new confirmation email has been sent to you by email.')
+    flash('A new confirmation email has been sent to you by email')
     return redirect(url_for('auth.unconfirmed'))
 
 
@@ -136,14 +161,23 @@ def reset_password_request():
         user = User.query.filter_by(email=form.email.data.lower()).first()
         if user is not None:
             token = user.generate_reset_token()
-            msg = create_message(user.email, 'Reset Your Password',
-                                 'auth/email/reset_password', token=token,
-                                 user=user)
+            msg = create_message(
+                user.email,
+                'Reset Your Password',
+                'auth/email/reset_password',
+                token=token,
+                user=user
+            )
             send(msg)
-        flash('An email with instructions to reset your password has been sent to you.')  # noqa
+        flash(
+            'An email with instructions to reset your password has been sent to you'  # noqa
+        )
         return redirect(url_for('.login'))
-    return render_template('auth/reset_password_request.html.j2', form=form,
-                           title='Password Reset')
+    return render_template(
+        'auth/reset_password_request.html.j2',
+        form=form,
+        title='Password Reset'
+    )
 
 
 @bp.route('/reset/<token>', methods=['GET', 'POST'])
@@ -154,9 +188,13 @@ def reset_password(token):
     if form.validate_on_submit():
         if User.reset_password(token, form.password.data):
             db.session.commit()
-            flash('Your password has been updated.')
+            flash('Your password has been updated')
             return redirect(url_for('.login'))
         else:
             return redirect(url_for('main.index'))
-    return render_template('auth/reset_password.html.j2', form=form,
-                           title='Password Reset', token=token)
+    return render_template(
+        'auth/reset_password.html.j2',
+        form=form,
+        title='Password Reset',
+        token=token
+    )
diff --git a/app/contribute/routes.py b/app/contribute/routes.py
index e0b43231..8bfd9bd8 100644
--- a/app/contribute/routes.py
+++ b/app/contribute/routes.py
@@ -1,10 +1,10 @@
+from app import db
+from app.decorators import permission_required
+from app.models import Permission, Role, User
+from app.settings import tasks as settings_tasks
 from flask import flash, redirect, render_template, url_for
 from flask_login import login_required
 from . import bp
-from .. import db
-from ..decorators import permission_required
-from ..models import Permission, Role, User
-from ..settings import tasks as settings_tasks
 
 
 @bp.before_request
diff --git a/app/corpora/cqi_over_socketio/__init__.py b/app/corpora/cqi_over_socketio/__init__.py
index 3a358758..f1f5f826 100644
--- a/app/corpora/cqi_over_socketio/__init__.py
+++ b/app/corpora/cqi_over_socketio/__init__.py
@@ -1,6 +1,6 @@
 from app import db, hashids, socketio
 from app.decorators import socketio_login_required
-from app.models import Corpus
+from app.models import Corpus, CorpusStatus
 from flask import session
 from flask_login import current_user
 from flask_socketio import ConnectionRefusedError
@@ -65,7 +65,12 @@ def connect(auth):
     if not (corpus.user == current_user or current_user.is_administrator()):
         # return {'code': 403, 'msg': 'Forbidden'}
         raise ConnectionRefusedError('Forbidden')
-    if corpus.status not in ['prepared', 'start analysis', 'analysing', 'stop analysis']:
+    if corpus.status not in [
+        CorpusStatus.BUILT,
+        CorpusStatus.STARTING_ANALYSIS_SESSION,
+        CorpusStatus.RUNNING_ANALYSIS_SESSION,
+        CorpusStatus.CANCELING_ANALYSIS_SESSION
+    ]:
         # return {'code': 424, 'msg': 'Failed Dependency'}
         raise ConnectionRefusedError('Failed Dependency')
     if corpus.num_analysis_sessions is None:
@@ -74,7 +79,7 @@ def connect(auth):
     corpus.num_analysis_sessions = Corpus.num_analysis_sessions + 1
     db.session.commit()
     retry_counter = 20
-    while corpus.status != 'analysing':
+    while corpus.status != CorpusStatus.RUNNING_ANALYSIS_SESSION:
         if retry_counter == 0:
             corpus.num_analysis_sessions = Corpus.num_analysis_sessions - 1
             db.session.commit()
diff --git a/app/corpora/forms.py b/app/corpora/forms.py
index c015d87e..9af4a5ce 100644
--- a/app/corpora/forms.py
+++ b/app/corpora/forms.py
@@ -1,7 +1,12 @@
 from flask_wtf import FlaskForm
 from werkzeug.utils import secure_filename
-from wtforms import (FileField, StringField, SubmitField,
-                     ValidationError, IntegerField)
+from wtforms import (
+    FileField,
+    StringField,
+    SubmitField,
+    ValidationError,
+    IntegerField
+)
 from wtforms.validators import DataRequired, Length
 
 
diff --git a/app/corpora/query_results_routes.py b/app/corpora/query_results_routes.py
index 27402dc9..6c22e11e 100644
--- a/app/corpora/query_results_routes.py
+++ b/app/corpora/query_results_routes.py
@@ -58,7 +58,7 @@ def add_query_result():
         query_result_file_content.pop('cpos_lookup')
         query_result.query_metadata = query_result_file_content
         db.session.commit()
-        flash('Query result added!', 'result')
+        flash('Query result added', 'result')
         return make_response({'redirect_url': url_for('.query_result', query_result_id=query_result.id)}, 201)  # noqa
     return render_template('corpora/query_results/add_query_result.html.j2',
                            form=form, title='Add query result')
@@ -117,7 +117,7 @@ def delete_query_result(query_result_id):
     if not (query_result.user == current_user
             or current_user.is_administrator()):
         abort(403)
-    flash(f'Query result "{query_result}" marked for deletion!', 'result')
+    flash(f'Query result "{query_result}" marked for deletion', 'result')
     tasks.delete_query_result(query_result_id)
     return redirect(url_for('services.service', service="corpus_analysis"))
 
diff --git a/app/corpora/query_results_tasks.py b/app/corpora/query_results_tasks.py
new file mode 100644
index 00000000..653096b3
--- /dev/null
+++ b/app/corpora/query_results_tasks.py
@@ -0,0 +1,13 @@
+from .. import db
+from ..decorators import background
+from ..models import QueryResult
+
+
+@background
+def delete_query_result(query_result_id, *args, **kwargs):
+    with kwargs['app'].app_context():
+        query_result = QueryResult.query.get(query_result_id)
+        if query_result is None:
+            raise Exception(f'QueryResult {query_result_id} not found')
+        query_result.delete()
+        db.session.commit()
diff --git a/app/corpora/routes.py b/app/corpora/routes.py
index f6d95b54..fd0085ee 100644
--- a/app/corpora/routes.py
+++ b/app/corpora/routes.py
@@ -1,19 +1,31 @@
-from flask import (abort, current_app, flash, make_response, redirect,
-                   render_template, url_for, send_from_directory)
+from app import db
+from app.models import Corpus, CorpusFile, CorpusStatus
+from flask import (
+    abort,
+    current_app,
+    flash,
+    make_response,
+    redirect,
+    render_template,
+    url_for,
+    send_from_directory
+)
 from flask_login import current_user, login_required
 from werkzeug.utils import secure_filename
+from zipfile import ZipFile
 from . import bp
 from . import tasks
-from .forms import (AddCorpusFileForm, AddCorpusForm, EditCorpusFileForm,
-                    ImportCorpusForm)
-from .. import db
-from ..models import Corpus, CorpusFile
+from .forms import (
+    AddCorpusFileForm,
+    AddCorpusForm,
+    EditCorpusFileForm,
+    ImportCorpusForm
+)
+from .import_corpus import check_zip_contents
 import os
 import shutil
 import glob
 import xml.etree.ElementTree as ET
-from zipfile import ZipFile
-from .import_corpus import check_zip_contents
 
 
 @bp.route('/add', methods=['GET', 'POST'])
@@ -34,10 +46,10 @@ def add_corpus():
         except OSError as e:
             current_app.logger.error(e)
             db.session.rollback()
-            flash('Internal Server Error', 'error')
+            flash('Internal Server Error', category='error')
             abort(500)
         db.session.commit()
-        flash(f'Corpus "{corpus.title}" added', 'corpus')
+        flash(f'Corpus "{corpus.title}" added', category='corpus')
         return redirect(url_for('.corpus', corpus_id=corpus.id))
     return render_template(
         'corpora/add_corpus.html.j2',
@@ -46,6 +58,21 @@ def add_corpus():
     )
 
 
+@bp.route('/<hashid:corpus_id>/export')
+@login_required
+def export_corpus(corpus_id):
+    abort(503)
+    corpus = Corpus.query.get_or_404(corpus_id)
+    if not (corpus.user == current_user or current_user.is_administrator()):
+        abort(403)
+    return send_from_directory(
+        as_attachment=True,
+        directory=os.path.join(corpus.user.path, 'corpora'),
+        filename=corpus.archive_file,
+        mimetype='zip'
+    )
+
+
 @bp.route('/import', methods=['GET', 'POST'])
 @login_required
 def import_corpus():
@@ -65,11 +92,10 @@ def import_corpus():
         try:
             os.makedirs(corpus.path)
         except OSError as e:
-            current_app.logger.error(f'Could not import corpus: {e}')
+            current_app.logger.error(e)
             db.session.rollback()
-            flash('Internal Server Error', 'error')
-            return make_response(
-                {'redirect_url': url_for('.import_corpus')}, 500)
+            flash('Internal Server Error', category='error')
+            return make_response({'redirect_url': url_for('.import_corpus')}, 500)  # noqa
         # Upload zip
         archive_file = os.path.join(corpus.path, form.file.data.filename)
         form.file.data.save(archive_file)
@@ -102,20 +128,25 @@ def import_corpus():
                 )
                 db.session.add(corpus_file)
             # finish import and redirect to imported corpus
-            corpus.status = 'prepared'
+            corpus.status = CorpusStatus.BUILT
             db.session.commit()
             os.remove(archive_file)
-            flash(f'Corpus "{corpus.title}" imported!', 'corpus')
+            flash(f'Corpus "{corpus.title}" imported', 'corpus')
             return make_response(
                 {'redirect_url': url_for('.corpus', corpus_id=corpus.id)}, 201)
         else:
             # If imported zip is not valid delete corpus and give feedback
-            flash('Can not import corpus "{}" not imported: Invalid archive file!', 'error')  # noqa
+            flash(
+                f'Can\'t import corpus "{corpus.title}": Invalid archive file',
+                category='error'
+            )
             tasks.delete_corpus(corpus.id)
-            return make_response(
-                {'redirect_url': url_for('.import_corpus')}, 201)
-    return render_template('corpora/import_corpus.html.j2', form=form,
-                           title='Import Corpus')
+            return make_response({'redirect_url': url_for('.import_corpus')}, 201)  # noqa
+    return render_template(
+        'corpora/import_corpus.html.j2',
+        form=form,
+        title='Import Corpus'
+    )
 
 
 @bp.route('/<hashid:corpus_id>')
@@ -124,9 +155,11 @@ def corpus(corpus_id):
     corpus = Corpus.query.get_or_404(corpus_id)
     if not (corpus.user == current_user or current_user.is_administrator()):
         abort(403)
-    corpus_files = [corpus_file.to_dict() for corpus_file in corpus.files]
-    return render_template('corpora/corpus.html.j2', corpus=corpus,
-                           corpus_files=corpus_files, title='Corpus')
+    return render_template(
+        'corpora/corpus.html.j2',
+        corpus=corpus,
+        title='Corpus'
+    )
 
 
 @bp.route('/<hashid:corpus_id>/analyse')
@@ -140,28 +173,13 @@ def analyse_corpus(corpus_id):
     )
 
 
-@bp.route('/<hashid:corpus_id>/download')
-@login_required
-def download_corpus(corpus_id):
-    abort(503)
-    corpus = Corpus.query.get_or_404(corpus_id)
-    if not (corpus.user == current_user or current_user.is_administrator()):
-        abort(403)
-    return send_from_directory(
-        as_attachment=True,
-        directory=os.path.join(corpus.user.path, 'corpora'),
-        filename=corpus.archive_file,
-        mimetype='zip'
-    )
-
-
 @bp.route('/<hashid:corpus_id>/delete')
 @login_required
 def delete_corpus(corpus_id):
     corpus = Corpus.query.get_or_404(corpus_id)
     if not (corpus.user == current_user or current_user.is_administrator()):
         abort(403)
-    flash(f'Corpus "{corpus.title}" marked for deletion!', 'corpus')
+    flash(f'Corpus "{corpus.title}" marked for deletion', 'corpus')
     tasks.delete_corpus(corpus_id)
     return redirect(url_for('main.dashboard'))
 
@@ -203,11 +221,11 @@ def add_corpus_file(corpus_id):
         except OSError as e:
             current_app.logger.error(e)
             db.session.rollback()
-            flash('Internal Server Error', 'error')
+            flash('Internal Server Error', category='error')
             return make_response({'redirect_url': url_for('.add_corpus_file', corpus_id=corpus.id)}, 500)  # noqa
-        corpus.status = 'unprepared'
+        corpus.status = CorpusStatus.UNPREPARED
         db.session.commit()
-        flash(f'Corpus file "{corpus_file.title}" added!', 'corpus')
+        flash(f'Corpus file "{corpus_file.filename}" added', category='corpus')
         return make_response({'redirect_url': url_for('.corpus', corpus_id=corpus.id)}, 201)  # noqa
     return render_template(
         'corpora/add_corpus_file.html.j2',
@@ -220,14 +238,19 @@ def add_corpus_file(corpus_id):
 @bp.route('/<hashid:corpus_id>/files/<hashid:corpus_file_id>/delete')
 @login_required
 def delete_corpus_file(corpus_id, corpus_file_id):
-    corpus_file = CorpusFile.query.get_or_404(corpus_file_id)
-    if not corpus_file.corpus_id == corpus_id:
-        abort(404)
-    if not (corpus_file.corpus.user == current_user
-            or current_user.is_administrator()):
+    corpus_file = CorpusFile.query.filter(
+        CorpusFile.corpus_id == corpus_id,
+        CorpusFile.id == corpus_file_id
+    ).first_or_404()
+    if not (
+        corpus_file.corpus.user == current_user
+        or current_user.is_administrator()
+    ):
         abort(403)
     flash(
-        f'Corpus file "{corpus_file.filename}" marked for deletion!', 'corpus')
+        f'Corpus file "{corpus_file.filename}" marked for deletion',
+        category='corpus'
+    )
     tasks.delete_corpus_file(corpus_file_id)
     return redirect(url_for('.corpus', corpus_id=corpus_id))
 
@@ -235,26 +258,34 @@ def delete_corpus_file(corpus_id, corpus_file_id):
 @bp.route('/<hashid:corpus_id>/files/<hashid:corpus_file_id>/download')
 @login_required
 def download_corpus_file(corpus_id, corpus_file_id):
-    corpus_file = CorpusFile.query.get_or_404(corpus_file_id)
-    if not corpus_file.corpus_id == corpus_id:
-        abort(404)
-    if not (corpus_file.corpus.user == current_user
-            or current_user.is_administrator()):
+    corpus_file = CorpusFile.query.filter(
+        CorpusFile.corpus_id == corpus_id,
+        CorpusFile.id == corpus_file_id
+    ).first_or_404()
+    if not (
+        corpus_file.corpus.user == current_user
+        or current_user.is_administrator()
+    ):
         abort(403)
-    return send_from_directory(as_attachment=True,
-                               directory=os.path.dirname(corpus_file.path),
-                               filename=corpus_file.filename)
+    return send_from_directory(
+        as_attachment=True,
+        directory=os.path.dirname(corpus_file.path),
+        filename=corpus_file.filename
+    )
 
 
-@bp.route('/<hashid:corpus_id>/files/<hashid:corpus_file_id>', methods=['GET', 'POST'])
+@bp.route('/<hashid:corpus_id>/files/<hashid:corpus_file_id>', methods=['GET', 'POST'])  # noqa
 @login_required
 def corpus_file(corpus_id, corpus_file_id):
-    corpus = Corpus.query.get_or_404(corpus_id)
-    if not (corpus.user == current_user or current_user.is_administrator()):
+    corpus_file = CorpusFile.query.filter(
+        CorpusFile.corpus_id == corpus_id,
+        CorpusFile.id == corpus_file_id
+    ).first_or_404()
+    if not (
+        corpus_file.corpus.user == current_user
+        or current_user.is_administrator()
+    ):
         abort(403)
-    corpus_file = CorpusFile.query.get_or_404(corpus_file_id)
-    if corpus_file.corpus != corpus:
-        abort(404)
     form = EditCorpusFileForm(prefix='edit-corpus-file-form')
     if form.validate_on_submit():
         corpus_file.address = form.address.data
@@ -269,9 +300,9 @@ def corpus_file(corpus_id, corpus_file_id):
         corpus_file.publishing_year = form.publishing_year.data
         corpus_file.school = form.school.data
         corpus_file.title = form.title.data
-        corpus.status = 'unprepared'
+        corpus_file.corpus.status = CorpusStatus.UNPREPARED
         db.session.commit()
-        flash(f'Corpus file "{corpus_file.filename}" edited!', 'corpus')
+        flash(f'Corpus file "{corpus_file.filename}" edited', category='corpus')  # noqa
         return redirect(url_for('.corpus', corpus_id=corpus_id))
     # If no form is submitted or valid, fill out fields with current values
     form.address.data = corpus_file.address
@@ -286,9 +317,13 @@ def corpus_file(corpus_id, corpus_file_id):
     form.publishing_year.data = corpus_file.publishing_year
     form.school.data = corpus_file.school
     form.title.data = corpus_file.title
-    return render_template('corpora/corpus_file.html.j2', corpus=corpus,
-                           corpus_file=corpus_file, form=form,
-                           title='Edit corpus file')
+    return render_template(
+        'corpora/corpus_file.html.j2',
+        corpus=corpus,
+        corpus_file=corpus_file,
+        form=form,
+        title='Edit corpus file'
+    )
 
 
 @bp.route('/<hashid:corpus_id>/build')
@@ -299,7 +334,13 @@ def build_corpus(corpus_id):
         abort(403)
     if corpus.files.all():
         tasks.build_corpus(corpus_id)
-        flash(f'Corpus "{corpus.title}" marked for building!', 'corpus')
+        flash(
+            f'Corpus "{corpus.title}" marked for building',
+            category='corpus'
+        )
     else:
-        flash(f'Can\'t build corpus "{corpus.title}": No corpus file(s)!', 'error')  # noqa
+        flash(
+            f'Can\'t build corpus "{corpus.title}": No corpus file(s)',
+            category='error'
+        )
     return redirect(url_for('.corpus', corpus_id=corpus_id))
diff --git a/app/corpora/tasks.py b/app/corpora/tasks.py
index c37ebd99..c914a25a 100644
--- a/app/corpora/tasks.py
+++ b/app/corpora/tasks.py
@@ -1,6 +1,6 @@
-from .. import db
-from ..decorators import background
-from ..models import Corpus, CorpusFile, QueryResult
+from app import db
+from app.decorators import background
+from app.models import Corpus, CorpusFile
 
 
 @background
@@ -32,13 +32,3 @@ def delete_corpus_file(corpus_file_id, *args, **kwargs):
             raise Exception(f'Corpus file {corpus_file_id} not found')
         corpus_file.delete()
         db.session.commit()
-
-
-@background
-def delete_query_result(query_result_id, *args, **kwargs):
-    with kwargs['app'].app_context():
-        query_result = QueryResult.query.get(query_result_id)
-        if query_result is None:
-            raise Exception(f'QueryResult {query_result_id} not found')
-        query_result.delete()
-        db.session.commit()
diff --git a/app/daemon/corpus_utils.py b/app/daemon/corpus_utils.py
index 3962582e..78e17f29 100644
--- a/app/daemon/corpus_utils.py
+++ b/app/daemon/corpus_utils.py
@@ -1,5 +1,5 @@
+from app.models import Corpus, CorpusStatus
 from flask import current_app
-from ..models import Corpus
 import docker
 import os
 import shutil
@@ -8,19 +8,19 @@ import shutil
 class CheckCorporaMixin:
     def check_corpora(self):
         corpora = Corpus.query.all()
-        for corpus in (x for x in corpora if x.status == 'submitted'):
+        for corpus in (x for x in corpora if x.status == CorpusStatus.SUBMITTED):  # noqa
             self.create_build_corpus_service(corpus)
-        for corpus in (x for x in corpora if x.status == 'queued' or x.status == 'running'):  # noqa
+        for corpus in (x for x in corpora if x.status == CorpusStatus.QUEUED or x.status == CorpusStatus.BUILDING):  # noqa
             self.checkout_build_corpus_service(corpus)
-        for corpus in (x for x in corpora if x.status == 'prepared' and x.num_analysis_sessions > 0):  # noqa
-            corpus.status = 'start analysis'
-        for corpus in (x for x in corpora if x.status == 'analysing' and x.num_analysis_sessions == 0):  # noqa
-            corpus.status = 'stop analysis'
-        for corpus in (x for x in corpora if x.status == 'analysing'):
+        for corpus in (x for x in corpora if x.status == CorpusStatus.BUILT and x.num_analysis_sessions > 0):  # noqa
+            corpus.status = CorpusStatus.STARTING_ANALYSIS_SESSION
+        for corpus in (x for x in corpora if x.status == CorpusStatus.RUNNING_ANALYSIS_SESSION and x.num_analysis_sessions == 0):  # noqa
+            corpus.status = CorpusStatus.CANCELING_ANALYSIS_SESSION
+        for corpus in (x for x in corpora if x.status == CorpusStatus.RUNNING_ANALYSIS_SESSION):  # noqa
             self.checkout_analysing_corpus_container(corpus)
-        for corpus in (x for x in corpora if x.status == 'start analysis'):
+        for corpus in (x for x in corpora if x.status == CorpusStatus.STARTING_ANALYSIS_SESSION):  # noqa
             self.create_cqpserver_container(corpus)
-        for corpus in (x for x in corpora if x.status == 'stop analysis'):
+        for corpus in (x for x in corpora if x.status == CorpusStatus.CANCELING_ANALYSIS_SESSION):  # noqa
             self.remove_cqpserver_container(corpus)
 
     def create_build_corpus_service(self, corpus):
@@ -95,7 +95,7 @@ class CheckCorporaMixin:
                 f'due to "docker.errors.APIError": {e}'
             )
             return
-        corpus.status = 'queued'
+        corpus.status = CorpusStatus.QUEUED
 
     def checkout_build_corpus_service(self, corpus):
         service_name = f'build-corpus_{corpus.id}'
@@ -106,7 +106,7 @@ class CheckCorporaMixin:
                 f'Get service "{service_name}" failed '
                 f'due to "docker.errors.NotFound": {e}'
             )
-            corpus.status = 'failed'
+            corpus.status = CorpusStatus.FAILED
             return
         except docker.errors.APIError as e:
             current_app.logger.error(
@@ -117,22 +117,22 @@ class CheckCorporaMixin:
         if not service_tasks:
             return
         task_state = service_tasks[0].get('Status').get('State')
-        if corpus.status == 'queued' and task_state != 'pending':
-            corpus.status = 'running'
+        if corpus.status == CorpusStatus.QUEUED and task_state != 'pending':  # noqa
+            corpus.status = CorpusStatus.BUILDING
             return
-        elif corpus.status == 'running' and task_state == 'complete':
-            corpus.status = 'prepared'
-        elif corpus.status == 'running' and task_state == 'failed':
-            corpus.status = 'failed'
+        elif corpus.status == CorpusStatus.BUILDING and task_state == 'complete':  # noqa
+            corpus.status = CorpusStatus.BUILT
+        elif corpus.status == CorpusStatus.BUILDING and task_state == 'failed':  # noqa
+            corpus.status = CorpusStatus.FAILED
         else:
             return
-        # try:
-        #     service.remove()
-        # except docker.errors.APIError as e:
-        #     current_app.logger.error(
-        #         f'Remove service "{service_name}" failed '
-        #         f'due to "docker.errors.APIError": {e}'
-        #     )
+        try:
+            service.remove()
+        except docker.errors.APIError as e:
+            current_app.logger.error(
+                f'Remove service "{service_name}" failed '
+                f'due to "docker.errors.APIError": {e}'
+            )
 
     def create_cqpserver_container(self, corpus):
         ''' # Docker container settings # '''
@@ -203,7 +203,7 @@ class CheckCorporaMixin:
                 f'Run container "{name}" failed '
                 f'due to "docker.errors.ImageNotFound" error: {e}'
             )
-            corpus.status = 'failed'
+            corpus.status = CorpusStatus.FAILED
             return
         except docker.errors.APIError as e:
             current_app.logger.error(
@@ -211,7 +211,7 @@ class CheckCorporaMixin:
                 f'due to "docker.errors.APIError" error: {e}'
             )
             return
-        corpus.status = 'analysing'
+        corpus.status = CorpusStatus.RUNNING_ANALYSIS_SESSION
 
     def checkout_analysing_corpus_container(self, corpus):
         container_name = f'cqpserver_{corpus.id}'
@@ -223,7 +223,7 @@ class CheckCorporaMixin:
                 f'due to "docker.errors.NotFound": {e}'
             )
             corpus.num_analysis_sessions = 0
-            corpus.status = 'prepared'
+            corpus.status = CorpusStatus.BUILT
         except docker.errors.APIError as e:
             current_app.logger.error(
                 f'Get container "{container_name}" failed '
@@ -235,7 +235,7 @@ class CheckCorporaMixin:
         try:
             container = self.docker.containers.get(container_name)
         except docker.errors.NotFound:
-            corpus.status = 'prepared'
+            corpus.status = CorpusStatus.BUILT
             return
         except docker.errors.APIError as e:
             current_app.logger.error(
diff --git a/app/daemon/job_utils.py b/app/daemon/job_utils.py
index c640f35c..e4797e26 100644
--- a/app/daemon/job_utils.py
+++ b/app/daemon/job_utils.py
@@ -1,8 +1,8 @@
+from app import db
+from app.models import Job, JobResult, JobStatus, TesseractOCRModel
 from datetime import datetime
 from flask import current_app
 from werkzeug.utils import secure_filename
-from .. import db
-from ..models import Job, JobResult, TesseractOCRModel
 import docker
 import json
 import os
@@ -12,11 +12,11 @@ import shutil
 class CheckJobsMixin:
     def check_jobs(self):
         jobs = Job.query.all()
-        for job in (x for x in jobs if x.status == 'submitted'):
+        for job in (x for x in jobs if x.status == JobStatus.SUBMITTED):
             self.create_job_service(job)
-        for job in (x for x in jobs if x.status in ['queued', 'running']):
+        for job in (x for x in jobs if x.status in [JobStatus.QUEUED, JobStatus.RUNNING]):  # noqa
             self.checkout_job_service(job)
-        for job in (x for x in jobs if x.status == 'canceling'):
+        for job in (x for x in jobs if x.status == JobStatus.CANCELING):
             self.remove_job_service(job)
 
     def create_job_service(self, job):
@@ -74,7 +74,7 @@ class CheckJobsMixin:
             service_args = json.loads(job.service_args)
             model = TesseractOCRModel.query.get(service_args['model'])
             if model is None:
-                job.status = 'failed'
+                job.status = JobStatus.FAILED
                 return
             models_mount_source = model.path
             models_mount_target = f'/usr/local/share/tessdata/{model.filename}'
@@ -122,7 +122,7 @@ class CheckJobsMixin:
                 f'due to "docker.errors.APIError": {e}'
             )
             return
-        job.status = 'queued'
+        job.status = JobStatus.QUEUED
 
     def checkout_job_service(self, job):
         service_name = f'job_{job.id}'
@@ -133,7 +133,7 @@ class CheckJobsMixin:
                 f'Get service "{service_name}" failed '
                 f'due to "docker.errors.NotFound": {e}'
             )
-            job.status = 'failed'
+            job.status = JobStatus.FAILED
             return
         except docker.errors.APIError as e:
             current_app.logger.error(
@@ -145,11 +145,11 @@ class CheckJobsMixin:
         if not service_tasks:
             return
         task_state = service_tasks[0].get('Status').get('State')
-        if job.status == 'queued' and task_state != 'pending':
-            job.status = 'running'
+        if job.status == JobStatus.QUEUED and task_state != 'pending':
+            job.status = JobStatus.RUNNING
             return
-        elif job.status == 'running' and task_state == 'complete':
-            job.status = 'complete'
+        elif job.status == JobStatus.RUNNING and task_state == 'complete':  # noqa
+            job.status = JobStatus.COMPLETED
             results_dir = os.path.join(job.path, 'results')
             with open(os.path.join(results_dir, 'outputs.json')) as f:
                 outputs = json.load(f)
@@ -169,8 +169,8 @@ class CheckJobsMixin:
                     os.path.join(results_dir, output['file']),
                     job_result.path
                 )
-        elif job.status == 'running' and task_state == 'failed':
-            job.status = 'failed'
+        elif job.status == JobStatus.RUNNING and task_state == 'failed':
+            job.status = JobStatus.FAILED
         else:
             return
         job.end_date = datetime.utcnow()
@@ -187,7 +187,7 @@ class CheckJobsMixin:
         try:
             service = self.docker.services.get(service_name)
         except docker.errors.NotFound:
-            job.status = 'canceled'
+            job.status = JobStatus.CANCELED
             return
         except docker.errors.APIError as e:
             current_app.logger.error(
diff --git a/app/events/socketio.py b/app/events/socketio.py
index 94b4c0c7..e892ea9d 100644
--- a/app/events/socketio.py
+++ b/app/events/socketio.py
@@ -1,9 +1,8 @@
-from app import hashids
+from app import hashids, socketio
+from app.decorators import socketio_login_required
+from app.models import User
 from flask_login import current_user
 from flask_socketio import join_room
-from .. import socketio
-from ..decorators import socketio_login_required
-from ..models import User
 
 
 ###############################################################################
diff --git a/app/events/sqlalchemy.py b/app/events/sqlalchemy.py
index b3362ca0..dd88a0fe 100644
--- a/app/events/sqlalchemy.py
+++ b/app/events/sqlalchemy.py
@@ -1,8 +1,15 @@
+from app import db, mail, socketio
+from app.email import create_message
+from app.models import (
+    Corpus,
+    CorpusFile,
+    Job,
+    JobInput,
+    JobResult,
+    JobStatus,
+    JobStatusMailNotificationLevel
+)
 from datetime import datetime
-from flask import current_app
-from .. import db, mail, socketio
-from ..email import create_message
-from ..models import Corpus, CorpusFile, Job, JobInput, JobResult, QueryResult
 
 
 ###############################################################################
@@ -13,7 +20,6 @@ from ..models import Corpus, CorpusFile, Job, JobInput, JobResult, QueryResult
 @db.event.listens_for(Job, 'after_delete')
 @db.event.listens_for(JobInput, 'after_delete')
 @db.event.listens_for(JobResult, 'after_delete')
-@db.event.listens_for(QueryResult, 'after_delete')
 def ressource_after_delete(mapper, connection, ressource):
     jsonpatch = [{'op': 'remove', 'path': ressource.jsonpatch_path}]
     room = f'users.{ressource.user_hashid}'
@@ -25,14 +31,10 @@ def ressource_after_delete(mapper, connection, ressource):
 @db.event.listens_for(Job, 'after_insert')
 @db.event.listens_for(JobInput, 'after_insert')
 @db.event.listens_for(JobResult, 'after_insert')
-@db.event.listens_for(QueryResult, 'after_insert')
 def ressource_after_insert_handler(mapper, connection, ressource):
     value = ressource.to_dict(backrefs=False, relationships=False)
-    if isinstance(ressource, Job):
-        value['inputs'] = {}
-        value['results'] = {}
-    elif isinstance(ressource, Corpus):
-        value['files'] = {}
+    for relationship in mapper.relationships:
+        value[relationship.key] = {}
     jsonpatch = [
         {'op': 'add', 'path': ressource.jsonpatch_path, 'value': value}
     ]
@@ -45,35 +47,43 @@ def ressource_after_insert_handler(mapper, connection, ressource):
 @db.event.listens_for(Job, 'after_update')
 @db.event.listens_for(JobInput, 'after_update')
 @db.event.listens_for(JobResult, 'after_update')
-@db.event.listens_for(QueryResult, 'after_update')
 def ressource_after_update_handler(mapper, connection, ressource):
     jsonpatch = []
     for attr in db.inspect(ressource).attrs:
-        # We don't want to handle changes in relationship fields
-        # TODO: Find a way to handle this without a hardcoded list
-        if attr.key in ['files', 'inputs', 'results']:
+        # Don't handle changes in relationship fields
+        if attr.key in mapper.relationships:
             continue
+        # Check if their are changes for the current field
         history = attr.load_history()
         if not history.has_changes():
             continue
-        new_value = history.added[0]
-        # In order to be JSON serializable, DateTime attributes must be
-        # converted to a string
-        if isinstance(new_value, datetime):
-            new_value = new_value.isoformat() + 'Z'
+        if isinstance(history.added[0], datetime):
+            # In order to be JSON serializable, DateTime attributes must be
+            # converted to a string
+            attr_name = attr.key
+            value = history.added[0].isoformat() + 'Z'
+        elif attr.key.endswith('_enum_value'):
+            # Handling fake enum attributes
+            attr_name = attr.key[:-11]
+            value = getattr(ressource, attr_name).name
+        else:
+            attr_name = attr.key
+            value = history.added[0]
         jsonpatch.append(
             {
                 'op': 'replace',
-                'path': f'{ressource.jsonpatch_path}/{attr.key}',
-                'value': new_value
+                'path': f'{ressource.jsonpatch_path}/{attr_name}',
+                'value': value
             }
         )
         # Job status update notification if it changed and wanted by the user
-        if isinstance(ressource, Job) and attr.key == 'status':
-            if ressource.user.setting_job_status_mail_notifications == 'none':  # noqa
+        if isinstance(ressource, Job) and attr_name == 'status':
+            if ressource.user.setting_job_status_mail_notification_level == JobStatusMailNotificationLevel.NONE:  # noqa
                 pass
-            elif (ressource.user.setting_job_status_mail_notifications == 'end'  # noqa
-                  and ressource.status not in ['complete', 'failed']):
+            elif (
+                ressource.user.setting_job_status_mail_notification_level == JobStatusMailNotificationLevel.END  # noqa
+                and ressource.status not in [JobStatus.COMPLETED, JobStatus.FAILED]  # noqa
+            ):
                 pass
             else:
                 msg = create_message(
diff --git a/app/jobs/routes.py b/app/jobs/routes.py
index 4acd7c47..ac484958 100644
--- a/app/jobs/routes.py
+++ b/app/jobs/routes.py
@@ -1,10 +1,16 @@
-from flask import (abort, flash, redirect, render_template,
-                   send_from_directory, url_for)
+from app.decorators import admin_required
+from app.models import Job, JobInput, JobResult, JobStatus
+from flask import (
+    abort,
+    flash,
+    redirect,
+    render_template,
+    send_from_directory,
+    url_for
+)
 from flask_login import current_user, login_required
 from . import bp
 from . import tasks
-from ..decorators import admin_required
-from ..models import Job, JobInput, JobResult
 import os
 
 
@@ -14,9 +20,11 @@ def job(job_id):
     job = Job.query.get_or_404(job_id)
     if not (job.user == current_user or current_user.is_administrator()):
         abort(403)
-    job_inputs = [job_input.to_dict() for job_input in job.inputs]
-    return render_template('jobs/job.html.j2', job=job, job_inputs=job_inputs,
-                           title='Job')
+    return render_template(
+        'jobs/job.html.j2',
+        job=job,
+        title='Job'
+    )
 
 
 @bp.route('/<hashid:job_id>/delete')
@@ -26,15 +34,21 @@ def delete_job(job_id):
     if not (job.user == current_user or current_user.is_administrator()):
         abort(403)
     tasks.delete_job(job_id)
-    flash('Job has been marked for deletion!', 'job')
+    flash(f'Job "{job.title}" marked for deletion', 'job')
     return redirect(url_for('main.dashboard'))
 
 
 @bp.route('/<hashid:job_id>/inputs/<hashid:job_input_id>/download')
 @login_required
 def download_job_input(job_id, job_input_id):
-    job_input = JobInput.query.filter(JobInput.job_id == job_id, JobInput.id == job_input_id).first_or_404()  # noqa
-    if not (job_input.job.user == current_user or current_user.is_administrator()):  # noqa
+    job_input = JobInput.query.filter(
+        JobInput.job_id == job_id,
+        JobInput.id == job_input_id
+    ).first_or_404()
+    if not (
+        job_input.job.user == current_user
+        or current_user.is_administrator()
+    ):
         abort(403)
     return send_from_directory(
         as_attachment=True,
@@ -49,19 +63,28 @@ def download_job_input(job_id, job_input_id):
 @admin_required
 def restart(job_id):
     job = Job.query.get_or_404(job_id)
-    if job.status not in ['complete', 'failed']:
-        flash(f'Can not restart job "{job.title}": Status is not "complete/failed"', 'error')  # noqa
+    if job.status not in [JobStatus.COMPLETED, JobStatus.FAILED]:
+        flash(
+            f'Can\'t restart job "{job.title}": Status is not "Completed/Failed"',  # noqa
+            category='error'
+        )
     else:
         tasks.restart_job(job_id)
-        flash(f'Job "{job.title}" marked to get restarted!', 'job')
+        flash(f'Job "{job.title}" marked to get restarted', category='job')
     return redirect(url_for('.job', job_id=job_id))
 
 
 @bp.route('/<hashid:job_id>/results/<hashid:job_result_id>/download')
 @login_required
 def download_job_result(job_id, job_result_id):
-    job_result = JobResult.query.filter(JobResult.job_id == job_id, JobResult.id == job_result_id).first_or_404()  # noqa
-    if not (job_result.job.user == current_user or current_user.is_administrator()):  # noqa
+    job_result = JobResult.query.filter(
+        JobResult.job_id == job_id,
+        JobResult.id == job_result_id
+    ).first_or_404()
+    if not (
+        job_result.job.user == current_user
+        or current_user.is_administrator()
+    ):
         abort(403)
     return send_from_directory(
         as_attachment=True,
diff --git a/app/jobs/tasks.py b/app/jobs/tasks.py
index 9ba974e0..1738b0cd 100644
--- a/app/jobs/tasks.py
+++ b/app/jobs/tasks.py
@@ -1,6 +1,6 @@
-from .. import db
-from ..decorators import background
-from ..models import Job
+from app import db
+from app.decorators import background
+from app.models import Job
 
 
 @background
diff --git a/app/main/routes.py b/app/main/routes.py
index a817362f..79f19318 100644
--- a/app/main/routes.py
+++ b/app/main/routes.py
@@ -1,8 +1,8 @@
+from app.auth.forms import LoginForm
+from app.models import User
 from flask import flash, redirect, render_template, url_for
 from flask_login import login_required, login_user
 from . import bp
-from ..auth.forms import LoginForm
-from ..models import User
 
 
 @bp.route('/', methods=['GET', 'POST'])
@@ -21,8 +21,10 @@ def index():
 
 @bp.route('/faq')
 def faq():
-    return render_template('main/faq.html.j2',
-                           title='Frequently Asked Questions')
+    return render_template(
+        'main/faq.html.j2',
+        title='Frequently Asked Questions'
+    )
 
 
 @bp.route('/dashboard')
@@ -38,8 +40,10 @@ def news():
 
 @bp.route('/privacy_policy')
 def privacy_policy():
-    return render_template('main/privacy_policy.html.j2',
-                           title='Privacy statement (GDPR)')
+    return render_template(
+        'main/privacy_policy.html.j2',
+        title='Privacy statement (GDPR)'
+    )
 
 
 @bp.route('/terms_of_use')
diff --git a/app/models.py b/app/models.py
index d02b511c..034edc91 100644
--- a/app/models.py
+++ b/app/models.py
@@ -1,4 +1,5 @@
 from datetime import datetime, timedelta
+from enum import IntEnum
 from flask import current_app, url_for
 from flask_hashids import HashidMixin
 from flask_login import UserMixin
@@ -8,7 +9,6 @@ from tqdm import tqdm
 from werkzeug.security import generate_password_hash, check_password_hash
 from . import db, login
 import base64
-import enum
 import json
 import os
 import requests
@@ -17,7 +17,36 @@ import xml.etree.ElementTree as ET
 import yaml
 
 
-class Permission(enum.IntEnum):
+class CorpusStatus(IntEnum):
+    UNPREPARED = 1
+    SUBMITTED = 2
+    QUEUED = 3
+    BUILDING = 4
+    BUILT = 5
+    FAILED = 6
+    STARTING_ANALYSIS_SESSION = 7
+    RUNNING_ANALYSIS_SESSION = 8
+    CANCELING_ANALYSIS_SESSION = 9
+
+
+class JobStatus(IntEnum):
+    INITIALIZING = 1
+    SUBMITTED = 2
+    QUEUED = 3
+    RUNNING = 4
+    CANCELING = 5
+    CANCELED = 6
+    COMPLETED = 7
+    FAILED = 8
+
+
+class JobStatusMailNotificationLevel(IntEnum):
+    NONE = 1
+    END = 2
+    ALL = 3
+
+
+class Permission(IntEnum):
     '''
     Defines User permissions as integers by the power of 2. User permission
     can be evaluated using the bitwise operator &.
@@ -130,10 +159,11 @@ class User(HashidMixin, UserMixin, db.Model):
     token_expiration = db.Column(db.DateTime)
     username = db.Column(db.String(64), unique=True, index=True)
     setting_dark_mode = db.Column(db.Boolean, default=False)
-    setting_job_status_mail_notifications = db.Column(
-        db.String(16), default='end')
-    setting_job_status_site_notifications = db.Column(
-        db.String(16), default='all')
+    setting_job_status_mail_notification_level_enum_value = db.Column(
+        'setting_job_status_mail_notification_level',
+        db.Integer,
+        default=2
+    )
     # Backrefs: role: Role
     # Relationships
     tesseract_ocr_models = db.relationship(
@@ -154,12 +184,6 @@ class User(HashidMixin, UserMixin, db.Model):
         cascade='all, delete-orphan',
         lazy='dynamic'
     )
-    query_results = db.relationship(
-        'QueryResult',
-        backref='user',
-        cascade='all, delete-orphan',
-        lazy='dynamic'
-    )
 
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
@@ -188,7 +212,20 @@ class User(HashidMixin, UserMixin, db.Model):
     @property
     def path(self):
         return os.path.join(
-            current_app.config.get('NOPAQUE_DATA_DIR'), str(self.id))
+            current_app.config.get('NOPAQUE_DATA_DIR'), 'users', str(self.id))
+
+    @property
+    def setting_job_status_mail_notification_level(self):
+        return JobStatusMailNotificationLevel(
+            self.setting_job_status_mail_notification_level_enum_value
+        )
+
+    @setting_job_status_mail_notification_level.setter
+    def setting_job_status_mail_notification_level(self, enum_member):
+        if not isinstance(enum_member, JobStatusMailNotificationLevel):
+            return TypeError()
+        self.setting_job_status_mail_notification_level_enum_value = \
+            enum_member.value
 
     def can(self, permission):
         return self.role.has_permission(permission)
@@ -251,10 +288,8 @@ class User(HashidMixin, UserMixin, db.Model):
             'username': self.username,
             'settings': {
                 'dark_mode': self.setting_dark_mode,
-                'job_status_mail_notifications':
-                    self.setting_job_status_mail_notifications,
-                'job_status_site_notifications':
-                    self.setting_job_status_site_notifications
+                'job_status_mail_notification_level':
+                    self.setting_job_status_mail_notification_level.name
             }
         }
         if backrefs:
@@ -269,9 +304,9 @@ class User(HashidMixin, UserMixin, db.Model):
                 x.hashid: x.to_dict(backrefs=False, relationships=True)
                 for x in self.jobs
             }
-            dict_user['query_results'] = {
+            dict_user['tesseract_ocr_models'] = {
                 x.hashid: x.to_dict(backrefs=False, relationships=True)
-                for x in self.query_results
+                for x in self.tesseract_ocr_models
             }
         return dict_user
 
@@ -338,6 +373,25 @@ class TesseractOCRModel(FileMixin, HashidMixin, db.Model):
             str(self.id)
         )
 
+    def to_dict(self, backrefs=False, relationships=False):
+        compatible_service_versions = json.loads(self.compatible_service_versions)  # noqa
+        dict_tesseract_ocr_model = {
+            'id': self.hashid,
+            'user_id': self.user.hashid,
+            'compatible_service_versions': compatible_service_versions,
+            'description': self.description,
+            'publisher': self.publisher,
+            'publishing_year': self.publishing_year,
+            'title': self.title,
+            **self.file_mixin_to_dict()
+        }
+        if backrefs:
+            dict_tesseract_ocr_model['user'] = self.user.to_dict(
+                backrefs=True, relationships=False)
+        if relationships:
+            pass
+        return dict_tesseract_ocr_model
+
     @staticmethod
     def insert_defaults():
         user = User.query.filter_by(username='nopaque').first()
@@ -519,7 +573,7 @@ class Job(HashidMixin, db.Model):
     '''
     service_args = db.Column(db.String(255))
     service_version = db.Column(db.String(16))
-    status = db.Column(db.String(16))
+    status_enum_value = db.Column('status', db.Integer, default=1)
     title = db.Column(db.String(32))
     # Backrefs: user: User
     # Relationships
@@ -547,6 +601,16 @@ class Job(HashidMixin, db.Model):
     def path(self):
         return os.path.join(self.user.path, 'jobs', str(self.id))
 
+    @property
+    def status(self):
+        return JobStatus(self.status_enum_value)
+
+    @status.setter
+    def status(self, enum_member):
+        if not isinstance(enum_member, JobStatus):
+            return TypeError()
+        self.status_enum_value = enum_member.value
+
     @property
     def url(self):
         return url_for('jobs.job', job_id=self.id)
@@ -559,13 +623,13 @@ class Job(HashidMixin, db.Model):
         '''
         Delete the job and its inputs and results from the database.
         '''
-        if self.status not in ['complete', 'failed']:
-            self.status = 'canceling'
+        if self.status not in [JobStatus.COMPLETED, JobStatus.FAILED]:  # noqa
+            self.status = JobStatus.CANCELING
             db.session.commit()
-            while self.status != 'canceled':
+            while self.status != JobStatus.CANCELED:
                 # In case the daemon handled a job in any way
-                if self.status != 'canceling':
-                    self.status = 'canceling'
+                if self.status != JobStatus.CANCELING:
+                    self.status = JobStatus.CANCELING
                     db.session.commit()
                 sleep(1)
                 db.session.refresh(self)
@@ -583,14 +647,14 @@ class Job(HashidMixin, db.Model):
         Restart a job - only if the status is complete or failed
         '''
 
-        if self.status not in ['complete', 'failed']:
-            raise Exception('Could not restart job: status is not "complete/failed"')  # noqa
+        if self.status not in [JobStatus.COMPLETED, JobStatus.FAILED]:  # noqa
+            raise Exception('Could not restart job: status is not "completed/failed"')  # noqa
         shutil.rmtree(os.path.join(self.path, 'results'), ignore_errors=True)
         shutil.rmtree(os.path.join(self.path, 'pyflow.data'), ignore_errors=True)  # noqa
         for result in self.results:
             db.session.delete(result)
         self.end_date = None
-        self.status = 'submitted'
+        self.status = JobStatus.SUBMITTED
 
     def to_dict(self, backrefs=False, relationships=False):
         service_args = json.loads(self.service_args)
@@ -606,7 +670,7 @@ class Job(HashidMixin, db.Model):
             'service': self.service,
             'service_args': service_args,
             'service_version': self.service_version,
-            'status': self.status,
+            'status': self.status.name,
             'title': self.title,
             'url': self.url
         }
@@ -687,7 +751,7 @@ class CorpusFile(FileMixin, HashidMixin, db.Model):
             )
             pass
         db.session.delete(self)
-        self.corpus.status = 'unprepared'
+        self.corpus.status = CorpusStatus.UNPREPARED
 
     def to_dict(self, backrefs=False, relationships=False):
         dict_corpus_file = {
@@ -729,7 +793,7 @@ class Corpus(HashidMixin, db.Model):
     creation_date = db.Column(db.DateTime(), default=datetime.utcnow)
     description = db.Column(db.String(255))
     last_edited_date = db.Column(db.DateTime(), default=datetime.utcnow)
-    status = db.Column(db.String(16), default='unprepared')
+    status_enum_value = db.Column('status', db.Integer, default=1)
     title = db.Column(db.String(32))
     num_analysis_sessions = db.Column(db.Integer, default=0)
     num_tokens = db.Column(db.Integer, default=0)
@@ -742,7 +806,7 @@ class Corpus(HashidMixin, db.Model):
         lazy='dynamic',
         cascade='all, delete-orphan'
     )
-    # Python class variables
+    # "static" attributes
     max_num_tokens = 2147483647
 
     def __repr__(self):
@@ -760,6 +824,16 @@ class Corpus(HashidMixin, db.Model):
     def path(self):
         return os.path.join(self.user.path, 'corpora', str(self.id))
 
+    @property
+    def status(self):
+        return CorpusStatus(self.status_enum_value)
+
+    @status.setter
+    def status(self, enum_member):
+        if not isinstance(enum_member, CorpusStatus):
+            return TypeError()
+        self.status_enum_value = enum_member.value
+
     @property
     def url(self):
         return url_for('corpora.corpus', corpus_id=self.id)
@@ -791,7 +865,7 @@ class Corpus(HashidMixin, db.Model):
             encoding='utf-8'
         )
         self.last_edited_date = datetime.utcnow()
-        self.status = 'submitted'
+        self.status = CorpusStatus.SUBMITTED
 
     def delete(self):
         shutil.rmtree(self.path, ignore_errors=True)
@@ -815,7 +889,7 @@ class Corpus(HashidMixin, db.Model):
             'max_num_tokens': self.max_num_tokens,
             'num_analysis_sessions': self.num_analysis_sessions,
             'num_tokens': self.num_tokens,
-            'status': self.status,
+            'status': self.status.name,
             'last_edited_date': self.last_edited_date.isoformat() + 'Z',
             'title': self.title
         }
@@ -830,70 +904,6 @@ class Corpus(HashidMixin, db.Model):
         return dict_corpus
 
 
-class QueryResult(FileMixin, HashidMixin, db.Model):
-    __tablename__ = 'query_results'
-    # Primary key
-    id = db.Column(db.Integer, primary_key=True)
-    # Foreign keys
-    user_id = db.Column(db.Integer, db.ForeignKey('users.id'))
-    # Fields
-    description = db.Column(db.String(255))
-    query_metadata = db.Column(db.JSON())
-    title = db.Column(db.String(32))
-    # Backrefs: user: User
-
-    def __repr__(self):
-        '''
-        String representation of the QueryResult. For human readability.
-        '''
-        return f'<QueryResult {self.title}>'
-
-    @property
-    def download_url(self):
-        return url_for(
-            'corpora.download_query_result', query_result_id=self.id)
-
-    @property
-    def jsonpatch_path(self):
-        return f'{self.user.jsonpatch_path}/query_results/{self.hashid}'
-
-    @property
-    def path(self):
-        return os.path.join(
-            self.user.path, 'query_results', str(self.id), self.filename)
-
-    @property
-    def url(self):
-        return url_for('corpora.query_result', query_result_id=self.id)
-
-    @property
-    def user_hashid(self):
-        return self.user.hashid
-
-    def delete(self):
-        shutil.rmtree(self.path, ignore_errors=True)
-        db.session.delete(self)
-
-    def to_dict(self, backrefs=False, relationships=False):
-        dict_query_result = {
-            'id': self.hashid,
-            'user_id': self.user.hashid,
-            'download_url': self.download_url,
-            'url': self.url,
-            'corpus_title': self.query_metadata['corpus_name'],
-            'description': self.description,
-            'filename': self.filename,
-            'query': self.query_metadata['query'],
-            'query_metadata': self.query_metadata,
-            'title': self.title,
-            **self.file_mixin_to_dict(
-                backrefs=backrefs, relationships=relationships)
-        }
-        if backrefs:
-            dict_query_result['user'] = self.user.to_dict(
-                backrefs=True, relationships=False)
-
-
 @login.user_loader
 def load_user(user_id):
     return User.query.get(int(user_id))
diff --git a/app/query_results_models.py b/app/query_results_models.py
new file mode 100644
index 00000000..102d2825
--- /dev/null
+++ b/app/query_results_models.py
@@ -0,0 +1,62 @@
+class QueryResult(FileMixin, HashidMixin, db.Model):
+    __tablename__ = 'query_results'
+    # Primary key
+    id = db.Column(db.Integer, primary_key=True)
+    # Foreign keys
+    user_id = db.Column(db.Integer, db.ForeignKey('users.id'))
+    # Fields
+    description = db.Column(db.String(255))
+    query_metadata = db.Column(db.JSON())
+    title = db.Column(db.String(32))
+    # Backrefs: user: User
+
+    def __repr__(self):
+        '''
+        String representation of the QueryResult. For human readability.
+        '''
+        return f'<QueryResult {self.title}>'
+
+    @property
+    def download_url(self):
+        return url_for(
+            'corpora.download_query_result', query_result_id=self.id)
+
+    @property
+    def jsonpatch_path(self):
+        return f'{self.user.jsonpatch_path}/query_results/{self.hashid}'
+
+    @property
+    def path(self):
+        return os.path.join(
+            self.user.path, 'query_results', str(self.id), self.filename)
+
+    @property
+    def url(self):
+        return url_for('corpora.query_result', query_result_id=self.id)
+
+    @property
+    def user_hashid(self):
+        return self.user.hashid
+
+    def delete(self):
+        shutil.rmtree(self.path, ignore_errors=True)
+        db.session.delete(self)
+
+    def to_dict(self, backrefs=False, relationships=False):
+        dict_query_result = {
+            'id': self.hashid,
+            'user_id': self.user.hashid,
+            'download_url': self.download_url,
+            'url': self.url,
+            'corpus_title': self.query_metadata['corpus_name'],
+            'description': self.description,
+            'filename': self.filename,
+            'query': self.query_metadata['query'],
+            'query_metadata': self.query_metadata,
+            'title': self.title,
+            **self.file_mixin_to_dict(
+                backrefs=backrefs, relationships=relationships)
+        }
+        if backrefs:
+            dict_query_result['user'] = self.user.to_dict(
+                backrefs=True, relationships=False)
diff --git a/app/services/forms.py b/app/services/forms.py
index 0bebfb02..4a16ad4a 100644
--- a/app/services/forms.py
+++ b/app/services/forms.py
@@ -1,7 +1,13 @@
 from app.models import TesseractOCRModel
 from flask_wtf import FlaskForm
-from wtforms import (BooleanField, MultipleFileField, SelectField, StringField,
-                     SubmitField, ValidationError)
+from wtforms import (
+    BooleanField,
+    MultipleFileField,
+    SelectField,
+    StringField,
+    SubmitField,
+    ValidationError
+)
 from wtforms.validators import DataRequired, Length
 from . import SERVICES
 
@@ -25,7 +31,7 @@ class AddSpacyNLPJobForm(AddJobForm):
 
     def validate_encoding_detection(self, field):
         service_info = SERVICES['spacy-nlp']['versions'][self.version.data]
-        if field.data and 'encoding_detection' not in service_info:
+        if field.data and 'encoding_detection' not in service_info['methods']:
             raise ValidationError('Encoding detection is not available')
 
     def validate_files(form, field):
@@ -41,7 +47,7 @@ class AddSpacyNLPJobForm(AddJobForm):
         version = kwargs.pop('version', SERVICES['spacy-nlp']['latest_version'])  # noqa
         super().__init__(*args, **kwargs)
         service_info = SERVICES['spacy-nlp']['versions'][version]
-        if 'check_encoding' not in service_info['methods']:
+        if 'encoding_detection' not in service_info['methods']:
             self.encoding_detection.render_kw = {'disabled': True}
         self.model.choices += [(x, y) for x, y in service_info['models'].items()]  # noqa
         self.version.choices = [(x, x) for x in SERVICES['spacy-nlp']['versions']]  # noqa
@@ -60,7 +66,7 @@ class AddTesseractOCRJobForm(AddJobForm):
 
     def validate_binarization(self, field):
         service_info = SERVICES['tesseract-ocr']['versions'][self.version.data]
-        if field.data and 'binarization' not in service_info:
+        if field.data and 'binarization' not in service_info['methods']:
             raise ValidationError('Binarization is not available')
 
     def validate_files(self, field):
diff --git a/app/services/routes.py b/app/services/routes.py
index d430e61e..7a8e520e 100644
--- a/app/services/routes.py
+++ b/app/services/routes.py
@@ -1,21 +1,29 @@
-from app import hashids
-from flask import (abort, current_app, flash, make_response, render_template,
-                   request, url_for)
+from app import db, hashids
+from app.models import Job, JobInput, JobStatus
+from flask import (
+    abort,
+    current_app,
+    flash,
+    make_response,
+    render_template,
+    request,
+    url_for
+)
 from flask_login import current_user, login_required
 from werkzeug.utils import secure_filename
 from . import bp
 from . import SERVICES
-from .. import db
 from .forms import AddJobForms
-from ..models import Job, JobInput
 import json
 
 
 @bp.route('/corpus-analysis')
 @login_required
 def corpus_analysis():
-    return render_template('services/corpus_analysis.html.j2',
-                           title='Corpus analysis')
+    return render_template(
+        'services/corpus_analysis.html.j2',
+        title='Corpus analysis'
+    )
 
 
 @bp.route('/<service>', methods=['GET', 'POST'])
@@ -47,7 +55,6 @@ def service(service):
             service=service,
             service_args=json.dumps(service_args),
             service_version=form.version.data,
-            status='preparing',
             title=form.title.data
         )
         db.session.add(job)
@@ -77,7 +84,7 @@ def service(service):
                 db.session.rollback()
                 flash('Internal Server Error', 'error')
                 return make_response({'redirect_url': url_for('.service', service=service)}, 500)  # noqa
-        job.status = 'submitted'
+        job.status = JobStatus.SUBMITTED
         db.session.commit()
         flash(f'Job "{job.title}" added', 'job')
         return make_response({'redirect_url': url_for('jobs.job', job_id=job.id)}, 201)  # noqa
diff --git a/app/settings/forms.py b/app/settings/forms.py
index d402fad2..03d7f243 100644
--- a/app/settings/forms.py
+++ b/app/settings/forms.py
@@ -1,21 +1,37 @@
+from app.auth import USERNAME_REGEX
+from app.models import JobStatusMailNotificationLevel, User
 from flask_wtf import FlaskForm
-from wtforms import (BooleanField, PasswordField, SelectField, StringField,
-                     SubmitField, ValidationError)
+from wtforms import (
+    BooleanField,
+    PasswordField,
+    SelectField,
+    StringField,
+    SubmitField,
+    ValidationError
+)
 from wtforms.validators import DataRequired, Email, EqualTo, Length, Regexp
-from ..auth import USERNAME_REGEX
-from ..models import User
 
 
 class ChangePasswordForm(FlaskForm):
     password = PasswordField('Old password', validators=[DataRequired()])
     new_password = PasswordField(
         'New password',
-        validators=[DataRequired(), EqualTo('password_confirmation',
-                                            message='Passwords must match.')]
+        validators=[
+            DataRequired(),
+            EqualTo(
+                'new_password_confirmation',
+                message='Passwords must match'
+            )
+        ]
     )
-    new_password2 = PasswordField(
-        'Confirm new password', validators=[DataRequired()])
-    submit = SubmitField('Change password')
+    new_password_confirmation = PasswordField(
+        'Confirm new password',
+        validators=[
+            DataRequired(),
+            EqualTo('new_password', message='Passwords must match')
+        ]
+    )
+    submit = SubmitField('Submit')
 
     def __init__(self, user, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -23,20 +39,24 @@ class ChangePasswordForm(FlaskForm):
 
     def validate_current_password(self, field):
         if not self.user.verify_password(field.data):
-            raise ValidationError('Invalid password.')
+            raise ValidationError('Invalid password')
 
 
 class EditGeneralSettingsForm(FlaskForm):
-    dark_mode = BooleanField('Dark mode')
-    email = StringField('E-Mail',
-                        validators=[DataRequired(), Length(1, 254), Email()])
+    email = StringField(
+        'E-Mail',
+        validators=[DataRequired(), Length(1, 254), Email()]
+    )
     username = StringField(
-        'Benutzername',
-        validators=[DataRequired(),
-                    Length(1, 64),
-                    Regexp(USERNAME_REGEX,
-                           message='Usernames must have only letters, numbers,'
-                                   ' dots or underscores')]
+        'Username',
+        validators=[
+            DataRequired(),
+            Length(1, 64),
+            Regexp(
+                USERNAME_REGEX,
+                message='Usernames must have only letters, numbers, dots or underscores'  # noqa
+            )
+        ]
     )
     submit = SubmitField('Submit')
 
@@ -45,29 +65,36 @@ class EditGeneralSettingsForm(FlaskForm):
         self.user = user
 
     def validate_email(self, field):
-        if (field.data != self.user.email
-                and User.query.filter_by(email=field.data).first()):
-            raise ValidationError('Email already registered.')
+        if (
+            field.data != self.user.email
+            and User.query.filter_by(email=field.data).first()
+        ):
+            raise ValidationError('Email already registered')
 
     def validate_username(self, field):
-        if (field.data != self.user.username
-                and User.query.filter_by(username=field.data).first()):
-            raise ValidationError('Username already in use.')
+        if (
+            field.data != self.user.username
+            and User.query.filter_by(username=field.data).first()
+        ):
+            raise ValidationError('Username already in use')
+
+
+class EditInterfaceSettingsForm(FlaskForm):
+    dark_mode = BooleanField('Dark mode')
+    submit = SubmitField('Submit')
 
 
 class EditNotificationSettingsForm(FlaskForm):
-    job_status_mail_notifications = SelectField(
-        'Job status mail notifications',
-        choices=[('', 'Choose your option'),
-                 ('all', 'Notify on all status changes'),
-                 ('end', 'Notify only when a job ended'),
-                 ('none', 'No status update notifications')],
-        validators=[DataRequired()])
-    job_status_site_notifications = SelectField(
-        'Job status site notifications',
-        choices=[('', 'Choose your option'),
-                 ('all', 'Notify on all status changes'),
-                 ('end', 'Notify only when a job ended'),
-                 ('none', 'No status update notifications')],
-        validators=[DataRequired()])
-    submit = SubmitField('Save settings')
+    job_status_mail_notification_level = SelectField(
+        'Job status mail notification level',
+        choices=[('', 'Choose your option')],
+        validators=[DataRequired()]
+    )
+    submit = SubmitField('Submit')
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.job_status_mail_notification_level.choices += [
+            (enum_member.name, enum_member.name.capitalize())
+            for enum_member in JobStatusMailNotificationLevel
+        ]
diff --git a/app/settings/routes.py b/app/settings/routes.py
index 9cc9960a..c59a55f2 100644
--- a/app/settings/routes.py
+++ b/app/settings/routes.py
@@ -1,66 +1,82 @@
 from flask import flash, redirect, render_template, url_for
 from flask_login import current_user, login_required, logout_user
 from . import bp, tasks
-from .forms import (ChangePasswordForm, EditGeneralSettingsForm,
-                    EditNotificationSettingsForm)
+from .forms import (
+    ChangePasswordForm,
+    EditGeneralSettingsForm,
+    EditInterfaceSettingsForm,
+    EditNotificationSettingsForm
+)
 from .. import db
+from ..models import JobStatusMailNotificationLevel
 
 
-@bp.route('/')
+@bp.route('', methods=['GET', 'POST'])
 @login_required
 def index():
-    return redirect(url_for('.edit_general_settings'))
+    change_password_form = ChangePasswordForm(
+        current_user._get_current_object(),
+        prefix='change_password_form'
+    )
+    edit_general_settings_form = EditGeneralSettingsForm(
+        current_user._get_current_object(),
+        prefix='edit_general_settings_form'
+    )
+    edit_interface_settings_form = EditInterfaceSettingsForm(
+        prefix='edit_interface_settings_form'
+    )
+    edit_notification_settings_form = EditNotificationSettingsForm(
+        prefix='edit_notification_settings_form'
+    )
 
-
-@bp.route('/change_password', methods=['GET', 'POST'])
-@login_required
-def change_password():
-    form = ChangePasswordForm(current_user._get_current_object())
-    if form.validate_on_submit():
-        current_user.password = form.new_password.data
+    if change_password_form.submit.data and change_password_form.validate():
+        current_user.password = change_password_form.new_password.data
         db.session.commit()
-        flash('Your password has been updated.')
-        return redirect(url_for('.change_password'))
-    return render_template('settings/change_password.html.j2',
-                           form=form, title='Change password')
-
-
-@bp.route('/edit_general_settings', methods=['GET', 'POST'])
-@login_required
-def edit_general_settings():
-    form = EditGeneralSettingsForm(current_user._get_current_object())
-    if form.validate_on_submit():
-        current_user.email = form.email.data
-        current_user.setting_dark_mode = form.dark_mode.data
-        current_user.username = form.username.data
+        flash('Your changes have been saved')
+        return redirect(url_for('.index'))
+    if (
+        edit_general_settings_form.submit.data
+        and edit_general_settings_form.validate()
+    ):
+        current_user.email = edit_general_settings_form.email.data
+        current_user.username = edit_general_settings_form.username.data
         db.session.commit()
-        flash('Your changes have been saved.')
-        return redirect(url_for('.edit_general_settings'))
-    form.dark_mode.data = current_user.setting_dark_mode
-    form.email.data = current_user.email
-    form.username.data = current_user.username
-    return render_template('settings/edit_general_settings.html.j2',
-                           form=form, title='General settings')
-
-
-@bp.route('/edit_notification_settings', methods=['GET', 'POST'])
-@login_required
-def edit_notification_settings():
-    form = EditNotificationSettingsForm()
-    if form.validate_on_submit():
-        current_user.setting_job_status_mail_notifications = \
-            form.job_status_mail_notifications.data
-        current_user.setting_job_status_site_notifications = \
-            form.job_status_site_notifications.data
+        flash('Your changes have been saved')
+        return redirect(url_for('.index'))
+    if (
+        edit_interface_settings_form.submit.data
+        and edit_interface_settings_form.validate()
+    ):
+        current_user.setting_dark_mode = \
+            edit_interface_settings_form.dark_mode.data
+        db.session.commit()
+        flash('Your changes have been saved')
+        return redirect(url_for('.index'))
+    if (
+        edit_notification_settings_form.submit.data
+        and edit_notification_settings_form.validate()
+    ):
+        current_user.setting_job_status_mail_notification_level = \
+            JobStatusMailNotificationLevel[
+                edit_notification_settings_form.job_status_mail_notification_level.data  # noqa
+            ]
         db.session.commit()
-        flash('Your changes have been saved.')
-        return redirect(url_for('.edit_notification_settings'))
-    form.job_status_mail_notifications.data = \
-        current_user.setting_job_status_mail_notifications
-    form.job_status_site_notifications.data = \
-        current_user.setting_job_status_site_notifications
-    return render_template('settings/edit_notification_settings.html.j2',
-                           form=form, title='Notification settings')
+        flash('Your changes have been saved')
+        return redirect(url_for('.index'))
+    edit_general_settings_form.email.data = current_user.email
+    edit_general_settings_form.username.data = current_user.username
+    edit_interface_settings_form.dark_mode.data = \
+        current_user.setting_dark_mode
+    edit_notification_settings_form.job_status_mail_notification_level.data = \
+        current_user.setting_job_status_mail_notification_level.name
+    return render_template(
+        'settings/index.html.j2',
+        change_password_form=change_password_form,
+        edit_general_settings_form=edit_general_settings_form,
+        edit_interface_settings_form=edit_interface_settings_form,
+        edit_notification_settings_form=edit_notification_settings_form,
+        title='Settings'
+    )
 
 
 @bp.route('/delete')
@@ -71,5 +87,5 @@ def delete():
     """
     tasks.delete_user(current_user.id)
     logout_user()
-    flash('Your account has been marked for deletion!')
+    flash('Your account has been marked for deletion')
     return redirect(url_for('main.index'))
diff --git a/app/settings/tasks.py b/app/settings/tasks.py
index cc5d9e36..2bd82ca9 100644
--- a/app/settings/tasks.py
+++ b/app/settings/tasks.py
@@ -1,6 +1,6 @@
-from .. import db
-from ..decorators import background
-from ..models import User
+from app import db
+from app.decorators import background
+from app.models import User
 
 
 @background
diff --git a/app/static/css/nopaque.css b/app/static/css/nopaque.css
index ee5377e1..ce122980 100644
--- a/app/static/css/nopaque.css
+++ b/app/static/css/nopaque.css
@@ -1,3 +1,7 @@
+:root {
+  --main-bg-color: brown;
+}
+
 /* Change navbar height bacause an extended and fixed navbar is used */
 .navbar-fixed {
   height: 112px;
@@ -12,15 +16,6 @@
   opacity: 1;
 }
 
-/* preloader circle in the size of a button icon */
-.button-icon-spinner {
-  bottom: -5px !important;
-  right: 55px !important;
-  margin-right: 12px !important;
-  width: 19.5px !important;
-  height: 19.5px !important;
-}
-
 /*
  * changes preoloader size etc. to fit visually better with the chip status
  * indicator of jobs
@@ -39,36 +34,37 @@
   transform: scale(2);
 }
 
-.btn-scale-x2 .nopaque-icons.service-icon {
+.btn-scale-x2 .nopaque-icon.nopaque-service-icon {
   font-size: 2.5rem;
 }
 
 /* Fix material icon vertical alignment when nested in various elements */
-h1 .nopaque-icons, h2 .nopaque-icons, h3 .nopaque-icons, h4 .nopaque-icons,
-.tab .nopaque-icons, .tab .material-icons {
+h1 .nopaque-icon, h2 .nopaque-icon, h3 .nopaque-icon, h4 .nopaque-icon, .tab .nopaque-icon, .tab .material-icons {
   line-height: inherit;
 }
-.nopaque-icons.service-icon[data-service="corpus-analysis"]:empty:before {content: "H";}
-.nopaque-icons.service-icon[data-service="file-setup"]:empty:before {content: "E";}
-.nopaque-icons.service-icon[data-service="spacy-nlp"]:empty:before {content: "G";}
-.nopaque-icons.service-icon[data-service="tesseract-ocr"]:empty:before {content: "F";}
 
-.status-text[data-status]:empty:before {content: attr(data-status);}
+.nopaque-icon.nopaque-service-icon[data-service="file-setup"]:empty:before {content: "E";}
+.nopaque-icon.nopaque-service-icon[data-service="tesseract-ocr"]:empty:before {content: "F";}
+.nopaque-icon.nopaque-service-icon[data-service="spacy-nlp"]:empty:before {content: "G";}
+.nopaque-icon.nopaque-service-icon[data-service="corpus-analysis"]:empty:before {content: "H";}
 
-.hoverable {cursor: pointer;}
-.s-attr.chip .p-attr.chip {background-color: inherit;}
+.nopaque-corpus-status-text[data-corpus-status="UNPREPARED"]:empty:before {content: "Unprepared";}
+.nopaque-corpus-status-text[data-corpus-status="SUBMITTED"]:empty:before {content: "Submitted";}
+.nopaque-corpus-status-text[data-corpus-status="QUEUED"]:empty:before {content: "Queued";}
+.nopaque-corpus-status-text[data-corpus-status="BUILDING"]:empty:before {content: "Building";}
+.nopaque-corpus-status-text[data-corpus-status="BUILT"]:empty:before {content: "Built";}
+.nopaque-corpus-status-text[data-corpus-status="STARTING_ANALYSIS_SESSION"]:empty:before {content: "Starting analysis session";}
+.nopaque-corpus-status-text[data-corpus-status="RUNNING_ANALYSIS_SESSION"]:empty:before {content: "Running analysis session";}
+.nopaque-corpus-status-text[data-corpus-status="CANCELING_ANALYSIS_SESSION"]:empty:before {content: "Canceling analysis session";}
 
+.nopaque-job-status-text[data-job-status="INITIALIZING"]:empty:before {content: "Initializing";}
+.nopaque-job-status-text[data-job-status="SUBMITTED"]:empty:before {content: "Submitted";}
+.nopaque-job-status-text[data-job-status="QUEUED"]:empty:before {content: "Queued";}
+.nopaque-job-status-text[data-job-status="RUNNING"]:empty:before {content: "Running";}
+.nopaque-job-status-text[data-job-status="CANCELING"]:empty:before {content: "Canceling";}
+.nopaque-job-status-text[data-job-status="CANCELED"]:empty:before {content: "Canceled";}
+.nopaque-job-status-text[data-job-status="COMPLETED"]:empty:before {content: "Completed";}
+.nopaque-job-status-text[data-job-status="FAILED"]:empty:before {content: "Failed";}
 
-.responsive-youtube-video-container {
-    position: relative;
-    width: 100%;
-    height: 0;
-    padding-bottom: 56.25%;
-}
-.responsive-youtube-video {
-    position: absolute;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-}
+.hoverable {cursor: pointer;}
+.chip.s-attr .chip.p-attr {background-color: inherit;}
diff --git a/app/static/css/nopaque_icons.css b/app/static/css/nopaque_icons.css
index f3e49752..20d1c68c 100644
--- a/app/static/css/nopaque_icons.css
+++ b/app/static/css/nopaque_icons.css
@@ -1,14 +1,14 @@
 @font-face {
-  font-family: 'nopaque Icons';
+  font-family: 'Nopaque Icons';
   font-style: normal;
   font-weight: 400;
   src: local('nopaque Icons'),
-    local('nopaqueIcons-Regular'),
-    url(../fonts/nopaque_icons/nopaqueIcons-Regular.otf) format('opentype');
+    local('NopaqueIcons-Regular'),
+    url(../fonts/nopaque_icons/NopaqueIcons-Regular.otf) format('opentype');
 }
 
-.nopaque-icons {
-  font-family: 'nopaque Icons';
+.nopaque-icon {
+  font-family: 'Nopaque Icons';
   font-weight: normal;
   font-style: normal;
   font-size: 24px;  /* Preferred icon size */
diff --git a/app/static/js/App.js b/app/static/js/App.js
index 3761be8c..6a188e63 100644
--- a/app/static/js/App.js
+++ b/app/static/js/App.js
@@ -31,7 +31,7 @@ class App {
         iconPrefix = '<i class="error-color-text left material-icons">error</i>';
         break;
       case 'job':
-        iconPrefix = '<i class="left nopaque-icons">J</i>';
+        iconPrefix = '<i class="left nopaque-icon">J</i>';
         break;
       default:
         iconPrefix = '<i class="left material-icons">notifications</i>';
diff --git a/app/static/js/JobStatusNotifier.js b/app/static/js/JobStatusNotifier.js
index 0ae834cd..fb258b04 100644
--- a/app/static/js/JobStatusNotifier.js
+++ b/app/static/js/JobStatusNotifier.js
@@ -16,7 +16,7 @@ class JobStatusNotifier {
       .filter(operation => re.test(operation.path));
     for (operation of filteredPatch) {
       [match, jobId] = operation.path.match(re);
-      app.flash(`[<a href="/jobs/${jobId}">${app.users[this.userId].jobs[jobId].title}</a>] New status: ${operation.value}`, 'job');
+      app.flash(`[<a href="/jobs/${jobId}">${app.users[this.userId].jobs[jobId].title}</a>] New status: <span class="nopaque-job-status-text" data-job-status="${operation.value}"></span>`, 'job');
     }
   }
 }
diff --git a/app/static/js/RessourceDisplays/CorpusDisplay.js b/app/static/js/RessourceDisplays/CorpusDisplay.js
index b807241e..ad3cb34b 100644
--- a/app/static/js/RessourceDisplays/CorpusDisplay.js
+++ b/app/static/js/RessourceDisplays/CorpusDisplay.js
@@ -67,30 +67,29 @@ class CorpusDisplay extends RessourceDisplay {
     let element;
     let elements;
 
-    this.setElements(this.displayElement.querySelectorAll('.corpus-status'), status);
-    elements = this.displayElement.querySelectorAll('.analyse-corpus-trigger')
+    elements = this.displayElement.querySelectorAll('.corpus-analyse-trigger')
     for (element of elements) {
-      if (['analysing', 'prepared', 'start analysis'].includes(status)) {
+      if (['BUILT', 'STARTING_ANALYSIS_SESSION', 'RUNNING_ANALYSIS_SESSION', 'CANCELING_ANALYSIS_SESSION'].includes(status)) {
         element.classList.remove('disabled');
       } else {
         element.classList.add('disabled');
       }
     }
-    elements = this.displayElement.querySelectorAll('.build-corpus-trigger');
+    elements = this.displayElement.querySelectorAll('.corpus-build-trigger');
     for (element of elements) {
-      if (status === 'unprepared' && Object.values(app.users[this.userId].corpora[this.corpusId].files).length > 0) {
+      if (status === 'UNPREPARED' && Object.values(app.users[this.userId].corpora[this.corpusId].files).length > 0) {
         element.classList.remove('disabled');
       } else {
         element.classList.add('disabled');
       }
     }
-    elements = this.displayElement.querySelectorAll('.status');
+    elements = this.displayElement.querySelectorAll('.corpus-status');
     for (element of elements) {
-      element.dataset.status = status;
+      element.dataset.corpusStatus = status;
     }
-    elements = this.displayElement.querySelectorAll('.status-spinner');
+    elements = this.displayElement.querySelectorAll('.corpus-status-spinner');
     for (element of elements) {
-      if (['submitted', 'queued', 'running', 'canceling', 'start analysis', 'stop analysis'].includes(status)) {
+      if (['SUBMITTED', 'QUEUED', 'BUILDING', 'STARTING_ANALYSIS_SESSION', 'CANCELING_ANALYSIS_SESSION'].includes(status)) {
         element.classList.remove('hide');
       } else {
         element.classList.add('hide');
diff --git a/app/static/js/RessourceDisplays/JobDisplay.js b/app/static/js/RessourceDisplays/JobDisplay.js
index 92102908..f00242a5 100644
--- a/app/static/js/RessourceDisplays/JobDisplay.js
+++ b/app/static/js/RessourceDisplays/JobDisplay.js
@@ -57,23 +57,21 @@ class JobDisplay extends RessourceDisplay {
     let element;
     let elements;
 
-    this.setElements(this.displayElement.querySelectorAll('.job-status'), status);
-
-    elements = this.displayElement.querySelectorAll('.status');
+    elements = this.displayElement.querySelectorAll('.job-status');
     for (element of elements) {
-      element.dataset.status = status;
+      element.dataset.jobStatus = status;
     }
-    elements = this.displayElement.querySelectorAll('.status-spinner');
+    elements = this.displayElement.querySelectorAll('.job-status-spinner');
     for (element of elements) {
-      if (['complete', 'failed'].includes(status)) {
+      if (['COMPLETED', 'FAILED'].includes(status)) {
         element.classList.add('hide');
       } else {
         element.classList.remove('hide');
       }
     }
-    elements = this.displayElement.querySelectorAll('.restart-job-trigger');
+    elements = this.displayElement.querySelectorAll('.job-restart-trigger');
     for (element of elements) {
-      if (['complete', 'failed'].includes(status)) {
+      if (['COMPLETED', 'FAILED'].includes(status)) {
         element.classList.remove('hide');
       } else {
         element.classList.add('hide');
diff --git a/app/static/js/RessourceLists/CorpusFileList.js b/app/static/js/RessourceLists/CorpusFileList.js
index 6aa3864b..a4d76dad 100644
--- a/app/static/js/RessourceLists/CorpusFileList.js
+++ b/app/static/js/RessourceLists/CorpusFileList.js
@@ -5,31 +5,31 @@ class CorpusFileList extends RessourceList {
         <td><span class="filename"></span></td>
         <td><span class="author"></span></td>
         <td><span class="title"></span></td>
-        <td><span class="publishing_year"></span></td>
+        <td><span class="publishing-year"></span></td>
         <td class="right-align">
           <a class="action-button btn-floating red tooltipped waves-effect waves-light" data-action="delete" data-position="top" data-tooltip="Delete"><i class="material-icons">delete</i></a>
-          <a class="action-button btn-floating service-color darken tooltipped waves-effect waves-light" data-action="download" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">file_download</i></a>
-          <a class="action-button btn-floating service-color darken tooltipped waves-effect waves-light" data-action="view" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">send</i></a>
+          <a class="action-button btn-floating tooltipped nopaque-service-color darken waves-effect waves-light" data-action="download" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">file_download</i></a>
+          <a class="action-button btn-floating tooltipped nopaque-service-color darken waves-effect waves-light" data-action="view" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">send</i></a>
         </td>
       </tr>
     `.trim(),
     ressourceMapper: corpusFile => {
       return {
-        id: corpusFile.id,
-        author: corpusFile.author,
-        creationDate: corpusFile.creation_date,
-        filename: corpusFile.filename,
-        publishingYear: corpusFile.publishing_year,
-        title: corpusFile.title
+        'id': corpusFile.id,
+        'author': corpusFile.author,
+        'creation-date': corpusFile.creation_date,
+        'filename': corpusFile.filename,
+        'publishing-year': corpusFile.publishing_year,
+        'title': corpusFile.title
       };
     },
-    sortValueName: 'creationDate',
+    sortValueName: 'creation-date',
     valueNames: [
       {data: ['id']},
-      {data: ['creationDate']},
+      {data: ['creation-date']},
       'author',
       'filename',
-      'publishingYear',
+      'publishing-year',
       'title'
     ]
   };
@@ -125,7 +125,7 @@ class CorpusFileList extends RessourceList {
           re = new RegExp(`^/users/${this.userId}/corpora/${this.corpusId}/files/([A-Za-z0-9]*)/(author|filename|publishing_year|title)$`);
           if (re.test(operation.path)) {
             [match, corpusFileId, valueName] = operation.path.match(re);
-            this.replace(corpusFileId, valueName, operation.value);
+            this.replace(corpusFileId, valueName.replace('_', '-'), operation.value);
           }
           break;
         default:
diff --git a/app/static/js/RessourceLists/CorpusList.js b/app/static/js/RessourceLists/CorpusList.js
index 7d4eb077..d939d17e 100644
--- a/app/static/js/RessourceLists/CorpusList.js
+++ b/app/static/js/RessourceLists/CorpusList.js
@@ -2,29 +2,29 @@ class CorpusList extends RessourceList {
   static options = {
     item: `
       <tr class="hoverable">
-        <td><a class="btn-floating disabled"><i class="material-icons service-color darken" data-service="corpus-analysis">book</i></a></td>
+        <td><a class="btn-floating disabled"><i class="material-icons nopaque-service-color darken" data-service="corpus-analysis">book</i></a></td>
         <td><b class="title"></b><br><i class="description"></i></td>
-        <td><span class="badge new status status-color status-text" data-badge-caption=""></span></td>
+        <td><span class="status badge new nopaque-corpus-status-color nopaque-corpus-status-text" data-badge-caption=""></span></td>
         <td class="right-align">
           <a class="action-button btn-floating red tooltipped waves-effect waves-light" data-action="delete" data-position="top" data-tooltip="Delete"><i class="material-icons">delete</i></a>
-          <a class="action-button btn-floating service-color darken tooltipped waves-effect waves-light" data-action="view" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">send</i></a>
+          <a class="action-button btn-floating nopaque-service-color darken tooltipped waves-effect waves-light" data-action="view" data-position="top" data-service="corpus-analysis" data-tooltip="View"><i class="material-icons">send</i></a>
         </td>
       </tr>
     `.trim(),
     ressourceMapper: corpus => {
       return {
-        id: corpus.id,
-        creationDate: corpus.creation_date,
-        description: corpus.description,
-        status: corpus.status,
-        title: corpus.title
+        'id': corpus.id,
+        'creation-date': corpus.creation_date,
+        'description': corpus.description,
+        'status': corpus.status,
+        'title': corpus.title
       };
     },
-    sortValueName: 'creationDate',
+    sortValueName: 'creation-date',
     valueNames: [
       {data: ['id']},
-      {data: ['creationDate']},
-      {name: 'status', attr: 'data-status'},
+      {data: ['creation-date']},
+      {name: 'status', attr: 'data-corpus-status'},
       'description',
       'title'
     ]
diff --git a/app/static/js/RessourceLists/JobInputList.js b/app/static/js/RessourceLists/JobInputList.js
index 714f3e59..c1f31312 100644
--- a/app/static/js/RessourceLists/JobInputList.js
+++ b/app/static/js/RessourceLists/JobInputList.js
@@ -10,13 +10,17 @@ class JobInputList extends RessourceList {
     `.trim(),
     ressourceMapper: jobInput => {
       return {
-        id: jobInput.id,
-        creationDate: jobInput.creation_date,
-        filename: jobInput.filename
+        'id': jobInput.id,
+        'creation-date': jobInput.creation_date,
+        'filename': jobInput.filename
       };
     },
-    sortValueName: 'creationDate',
-    valueNames: [{data: ['id']}, {data: ['creationDate']}, 'filename']
+    sortValueName: 'creation-date',
+    valueNames: [
+      {data: ['id']},
+      {data: ['creation-date']},
+      'filename'
+    ]
   };
 
 
diff --git a/app/static/js/RessourceLists/JobList.js b/app/static/js/RessourceLists/JobList.js
index ecb84dbd..58a0074a 100644
--- a/app/static/js/RessourceLists/JobList.js
+++ b/app/static/js/RessourceLists/JobList.js
@@ -1,36 +1,36 @@
 class JobList extends RessourceList {
   static options = {
     item: `
-      <tr class="hoverable service-color lighten">
-        <td><a class="btn-floating disabled"><i class="nopaque-icons service-color darken serviceDuplicate1 service-icon"></i></a></td>
+      <tr class="hoverable nopaque-service-color lighten">
+        <td><a class="btn-floating disabled"><i class="service-1 nopaque-icon nopaque-service-color darken nopaque-service-icon"></i></a></td>
         <td><b class="title"></b><br><i class="description"></i></td>
-        <td><span class="badge new status status-color status-text" data-badge-caption=""></span></td>
+        <td><span class="status badge new nopaque-job-status-color nopaque-job-status-text" data-badge-caption=""></span></td>
         <td class="right-align">
           <a class="action-button btn-floating red tooltipped waves-effect waves-light" data-action="delete" data-position="top" data-tooltip="Delete"><i class="material-icons">delete</i></a>
-          <a class="action-button btn-floating serviceDuplicate2 service-color darken tooltipped waves-effect waves-light" data-action="view" data-position="top" data-tooltip="View"><i class="material-icons">send</i></a>
+          <a class="service-2 action-button btn-floating nopaque-service-color darken tooltipped waves-effect waves-light" data-action="view" data-position="top" data-tooltip="View"><i class="material-icons">send</i></a>
         </td>
       </tr>
     `.trim(),
     ressourceMapper: job => {
       return {
-        id: job.id,
-        creationDate: job.creation_date,
-        description: job.description,
-        service: job.service,
-        serviceDuplicate1: job.service,
-        serviceDuplicate2: job.service,
-        status: job.status,
-        title: job.title
+        'id': job.id,
+        'creation-date': job.creation_date,
+        'description': job.description,
+        'service': job.service,
+        'service-1': job.service,
+        'service-2': job.service,
+        'status': job.status,
+        'title': job.title
       };
     },
-    sortValueName: 'creationDate',
+    sortValueName: 'creation-date',
     valueNames: [
       {data: ['id']},
-      {data: ['creationDate']},
+      {data: ['creation-date']},
       {data: ['service']},
-      {name: 'serviceDuplicate1', attr: 'data-service'},
-      {name: 'serviceDuplicate2', attr: 'data-service'},
-      {name: 'status', attr: 'data-status'},
+      {name: 'service-1', attr: 'data-service'},
+      {name: 'service-2', attr: 'data-service'},
+      {name: 'status', attr: 'data-job-status'},
       'description',
       'title'
     ]
diff --git a/app/static/js/RessourceLists/JobResultList.js b/app/static/js/RessourceLists/JobResultList.js
index 708b25f2..5f9da3b5 100644
--- a/app/static/js/RessourceLists/JobResultList.js
+++ b/app/static/js/RessourceLists/JobResultList.js
@@ -11,16 +11,16 @@ class JobResultList extends RessourceList {
     `.trim(),
     ressourceMapper: jobResult => {
       return {
-        id: jobResult.id,
-        creationDate: jobResult.creation_date,
-        description: jobResult.description,
-        filename: jobResult.filename
+        'id': jobResult.id,
+        'creation-date': jobResult.creation_date,
+        'description': jobResult.description,
+        'filename': jobResult.filename
       };
     },
-    sortValueName: 'creationDate',
+    sortValueName: 'creation-date',
     valueNames: [
       {data: ['id']},
-      {data: ['creationDate']},
+      {data: ['creation-date']},
       'description',
       'filename'
     ]
diff --git a/app/static/js/RessourceLists/QueryResultList.js b/app/static/js/RessourceLists/QueryResultList.js
index 429cc70a..c78ea3cb 100644
--- a/app/static/js/RessourceLists/QueryResultList.js
+++ b/app/static/js/RessourceLists/QueryResultList.js
@@ -3,7 +3,7 @@ class QueryResultList extends RessourceList {
     item: `
       <tr class="hoverable">
         <td><b class="title"></b><br><i class="description"></i><br></td>
-        <td><span class="corpus_title"></span><br><span class="query"></span></td>
+        <td><span class="corpus-title"></span><br><span class="query"></span></td>
         <td class="right-align">
           <a class="action-button btn-floating red tooltipped waves-effect waves-light" data-action="delete" data-position="top" data-tooltip="Delete"><i class="material-icons">delete</i></a>
           <a class="action-button btn-floating tooltipped waves-effect waves-light" data-action="view" data-position="top" data-tooltip="View"><i class="material-icons">send</i></a>
@@ -12,19 +12,19 @@ class QueryResultList extends RessourceList {
     `.trim(),
     ressourceMapper: queryResult => {
       return {
-        id: queryResult.id,
-        corpusTitle: queryResult.corpus_title,
-        creationDate: queryResult.creation_date,
-        description: queryResult.description,
-        query: queryResult.query,
-        title: queryResult.title
+        'id': queryResult.id,
+        'corpus-title': queryResult.corpus_title,
+        'creation-date': queryResult.creation_date,
+        'description': queryResult.description,
+        'query': queryResult.query,
+        'title': queryResult.title
       };
     },
-    sortValueName: 'creationDate',
+    sortValueName: 'creation-date',
     valueNames: [
       {data: ['id']},
-      {data: ['creationDate']},
-      'corpusTitle',
+      {data: ['creation-date']},
+      'corpus-title',
       'description',
       'query',
       'title'
@@ -118,7 +118,7 @@ class QueryResultList extends RessourceList {
           re = new RegExp(`^/users/${this.userId}/query_results/([A-Za-z0-9]*)/(corpus_title|description|query|title)$`);
           if (re.test(operation.path)) {
             [match, queryResultId, valueName] = operation.path.match(re);
-            this.replace(queryResultId, valueName, operation.value);
+            this.replace(queryResultId, valueName.replace('_', '-'), operation.value);
           }
           break;
         default:
diff --git a/app/static/js/RessourceLists/UserList.js b/app/static/js/RessourceLists/UserList.js
index e52eac48..5f488f47 100644
--- a/app/static/js/RessourceLists/UserList.js
+++ b/app/static/js/RessourceLists/UserList.js
@@ -2,10 +2,10 @@ class UserList extends RessourceList {
   static options = {
     item: `
       <tr class="hoverable">
-        <td><span class="idDuplicate"></span></td>
+        <td><span class="id-1"></span></td>
         <td><span class="username"></span></td>
         <td><span class="email"></span></td>
-        <td><span class="last_seen"></span></td>
+        <td><span class="last-seen"></span></td>
         <td><span class="role"></span></td>
         <td class="right-align">
           <a class="action-button btn-floating red tooltipped waves-effect waves-light" data-action="delete" data-position="top" data-tooltip="Delete"><i class="material-icons">delete</i></a>
@@ -16,21 +16,22 @@ class UserList extends RessourceList {
     `.trim(),
     ressourceMapper: user => {
       return {
-        id: user.id,
-        idDuplicate: user.id,
-        username: user.username,
-        email: user.email,
-        last_seen: new Date(user.last_seen).toLocaleString("en-US"),
-        role: user.role.name
+        'id': user.id,
+        'id-1': user.id,
+        'username': user.username,
+        'email': user.email,
+        'last-seen': new Date(user.last_seen).toLocaleString("en-US"),
+        'member-since': user.member_since,
+        'role': user.role.name
       };
     },
-    sortValueName: 'memberSince',
+    sortValueName: 'member-since',
     valueNames: [
       {data: ['id']},
-      {data: ['memberSince']},
+      {data: ['member-since']},
       'email',
-      'idDuplicate',
-      'last_seen',
+      'id-1',
+      'last-seen',
       'role',
       'username'
     ]
diff --git a/app/templates/_colors.html.j2 b/app/templates/_colors.html.j2
index a6ac0ed8..ee170aac 100644
--- a/app/templates/_colors.html.j2
+++ b/app/templates/_colors.html.j2
@@ -32,14 +32,24 @@
 } %}
 
 {% set status = {
-  'unprepared': '#9e9e9e',
-  'submitted': '#9e9e9e',
-  'queued': '#2196f3',
-  'running': '#ffc107',
-  'complete': '#4caf50',
-  'failed': '#f44336',
-  'prepared': '#4caf50',
-  'start analysis': '#2196f3',
-  'analysing': '#4caf50',
-  'stop analysis': '#ff5722'
+  'corpus': {
+    'UNPREPARED': '#9e9e9e',
+    'QUEUED': '#2196f3',
+    'BUILDING': '#ffc107',
+    'BUILT': '#4caf50',
+    'FAILED': '#f44336',
+    'STARTING_ANALYSIS_SESSION': '#2196f3',
+    'RUNNING_ANALYSIS_SESSION': '#4caf50',
+    'CANCELING_ANALYSIS_SESSION': '#ff5722'
+  },
+  'job': {
+    'INITIALIZING': '#9e9e9e',
+    'SUBMITTED': '#9e9e9e',
+    'QUEUED': '#2196f3',
+    'RUNNING': '#ffc107',
+    'CANCELING': '#ff5722',
+    'CANCELED': '#ff5722',
+    'COMPLETED': '#4caf50',
+    'FAILED': '#f44336'
+  }
 } %}
diff --git a/app/templates/_sidenav.html.j2 b/app/templates/_sidenav.html.j2
index 8729f4f8..10986506 100644
--- a/app/templates/_sidenav.html.j2
+++ b/app/templates/_sidenav.html.j2
@@ -10,14 +10,14 @@
   <li><a href="{{ url_for('main.news') }}"><i class="material-icons left">email</i>News</a></li>
   <li><a href="#"><i class="material-icons">linear_scale</i>Workflow</a></li>
   <li><a href="{{ url_for('main.dashboard') }}"><i class="material-icons">dashboard</i>Dashboard</a></li>
-  <li><a href="{{ url_for('main.dashboard', _anchor='corpora') }}" style="padding-left: 47px;"><i class="nopaque-icons">I</i>My Corpora</a></li>
-  <li><a href="{{ url_for('main.dashboard', _anchor='jobs') }}" style="padding-left: 47px;"><i class="nopaque-icons">J</i>My Jobs</a></li>
+  <li><a href="{{ url_for('main.dashboard', _anchor='corpora') }}" style="padding-left: 47px;"><i class="nopaque-icon">I</i>My Corpora</a></li>
+  <li><a href="{{ url_for('main.dashboard', _anchor='jobs') }}" style="padding-left: 47px;"><i class="nopaque-icon">J</i>My Jobs</a></li>
   <li><div class="divider"></div></li>
   <li><a class="subheader">Processes & Services</a></li>
-  <li class="service-color service-color-border border-darken" data-service="file-setup" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='file-setup') }}"><i class="nopaque-icons service-icon" data-service="file-setup"></i>File setup</a></li>
-  <li class="service-color service-color-border border-darken" data-service="tesseract-ocr" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='tesseract-ocr') }}"><i class="nopaque-icons service-icon" data-service="tesseract-ocr"></i>OCR</a></li>
-  <li class="service-color service-color-border border-darken" data-service="spacy-nlp" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='spacy-nlp') }}"><i class="nopaque-icons service-icon" data-service="spacy-nlp"></i>NLP</a></li>
-  <li class="service-color service-color-border border-darken" data-service="corpus-analysis" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='corpus-analysis') }}"><i class="nopaque-icons service-icon" data-service="corpus-analysis"></i>Corpus analysis</a></li>
+  <li class="nopaque-service-color nopaque-service-color-border border-darken" data-service="file-setup" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='file-setup') }}"><i class="nopaque-icon nopaque-service-icon" data-service="file-setup"></i>File setup</a></li>
+  <li class="nopaque-service-color nopaque-service-color-border border-darken" data-service="tesseract-ocr" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='tesseract-ocr') }}"><i class="nopaque-icon nopaque-service-icon" data-service="tesseract-ocr"></i>OCR</a></li>
+  <li class="nopaque-service-color nopaque-service-color-border border-darken" data-service="spacy-nlp" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='spacy-nlp') }}"><i class="nopaque-icon nopaque-service-icon" data-service="spacy-nlp"></i>NLP</a></li>
+  <li class="nopaque-service-color nopaque-service-color-border border-darken" data-service="corpus-analysis" style="border-left: 10px solid; margin-top: 5px;"><a href="{{ url_for('services.service', service='corpus-analysis') }}"><i class="nopaque-icon nopaque-service-icon" data-service="corpus-analysis"></i>Corpus analysis</a></li>
   <li><div class="divider"></div></li>
   <li><a class="subheader">Account</a></li>
   <li><a href="{{ url_for('settings.index') }}"><i class="material-icons">settings</i>Settings</a></li>
diff --git a/app/templates/_styles.html.j2 b/app/templates/_styles.html.j2
index d94765de..14a614f0 100644
--- a/app/templates/_styles.html.j2
+++ b/app/templates/_styles.html.j2
@@ -45,29 +45,31 @@
   main .tabs .indicator {background-color: {{ colors['baseline']['secondary'] }};}
 
   {% for service in colors['services'] %}
-  .service-scheme[data-service="{{ service }}"] {background-color: {{ colors['services'][service]['lighten'] }};}
-  .service-scheme[data-service="{{ service }}"] .btn, .service-scheme[data-service="{{ service }}"] .btn-small, .service-scheme[data-service="{{ service }}"] .btn-large, .service-scheme[data-service="{{ service }}"] .btn-floating {background-color: {{ colors['services'][service]['darken'] }};}
-  .service-scheme[data-service="{{ service }}"] .btn:hover, .service-scheme[data-service="{{ service }}"] .btn-large:hover, .service-scheme[data-service="{{ service }}"] .btn-small:hover, .service-scheme[data-service="{{ service }}"] .btn-floating:hover {background-color: {{ colors['services'][service]['base'] }};}
-  .service-scheme[data-service="{{ service }}"] .pagination li.active {background-color: {{ colors['services'][service]['darken'] }};}
-  .service-scheme[data-service="{{ service }}"] .table-of-contents a.active {border-color: {{ colors['services'][service]['darken'] }};}
-  .service-scheme[data-service="{{ service }}"] .tabs .tab a {color: inherit;}
-  .service-scheme[data-service="{{ service }}"] .tabs .tab.disabled a, .service-scheme[data-service="{{ service }}"] .tabs .tab.disabled a:hover {color: {{ colors['services'][service]['darken'] }}28;}
-  .service-scheme[data-service="{{ service }}"] .tabs .tab a:hover {color: {{ colors['services'][service]['darken'] }};}
-  .service-scheme[data-service="{{ service }}"] .tabs .tab a.active, .service-scheme[data-service="{{ service }}"] .tabs .tab a:focus.active {color: {{ colors['services'][service]['darken'] }}; background-color: {{ colors['services'][service]['darken'] }}28;}
-  .service-scheme[data-service="{{ service }}"] .tabs .indicator {background-color: {{ colors['services'][service]['darken'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] {background-color: {{ colors['services'][service]['lighten'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .btn, .nopaque-service-scheme[data-service="{{ service }}"] .btn-small, .nopaque-service-scheme[data-service="{{ service }}"] .btn-large, .nopaque-service-scheme[data-service="{{ service }}"] .btn-floating {background-color: {{ colors['services'][service]['darken'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .btn:hover, .nopaque-service-scheme[data-service="{{ service }}"] .btn-large:hover, .nopaque-service-scheme[data-service="{{ service }}"] .btn-small:hover, .nopaque-service-scheme[data-service="{{ service }}"] .btn-floating:hover {background-color: {{ colors['services'][service]['base'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .pagination li.active {background-color: {{ colors['services'][service]['darken'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .table-of-contents a.active {border-color: {{ colors['services'][service]['darken'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab a {color: inherit;}
+  .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab.disabled a, .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab.disabled a:hover {color: {{ colors['services'][service]['darken'] }}28;}
+  .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab a:hover {color: {{ colors['services'][service]['darken'] }};}
+  .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab a.active, .nopaque-service-scheme[data-service="{{ service }}"] .tabs .tab a:focus.active {color: {{ colors['services'][service]['darken'] }}; background-color: {{ colors['services'][service]['darken'] }}28;}
+  .nopaque-service-scheme[data-service="{{ service }}"] .tabs .indicator {background-color: {{ colors['services'][service]['darken'] }};}
 
-  .service-color[data-service="{{ service }}"] {background-color: {{ colors['services'][service]['base'] }} !important;}
-  .service-color-text[data-service="{{ service }}"] {color: {{ colors['services'][service]['base'] }} !important;}
-  .service-color-border[data-service="{{ service }}"] {border-color: {{ colors['services'][service]['base'] }} !important;}
-  .service-color[data-service="{{ service }}"].darken {background-color: {{ colors['services'][service]['darken'] }} !important;}
-  .service-color-text[data-service="{{ service }}"].text-darken {color: {{ colors['services'][service]['darken'] }} !important;}
-  .service-color-border[data-service="{{ service }}"].border-darken {border-color: {{ colors['services'][service]['darken'] }} !important;}
-  .service-color[data-service="{{ service }}"].lighten {background-color: {{ colors['services'][service]['lighten'] }} !important;}
-  .service-color-text[data-service="{{ service }}"].text-lighten {color: {{ colors['services'][service]['lighten'] }} !important;}
-  .service-color-border[data-service="{{ service }}"].border-lighten {border-color: {{ colors['services'][service]['lighten'] }} !important;}
+  .nopaque-service-color[data-service="{{ service }}"] {background-color: {{ colors['services'][service]['base'] }} !important;}
+  .nopaque-service-color-text[data-service="{{ service }}"] {color: {{ colors['services'][service]['base'] }} !important;}
+  .nopaque-service-color-border[data-service="{{ service }}"] {border-color: {{ colors['services'][service]['base'] }} !important;}
+  .nopaque-service-color[data-service="{{ service }}"].darken {background-color: {{ colors['services'][service]['darken'] }} !important;}
+  .nopaque-service-color-text[data-service="{{ service }}"].text-darken {color: {{ colors['services'][service]['darken'] }} !important;}
+  .nopaque-service-color-border[data-service="{{ service }}"].border-darken {border-color: {{ colors['services'][service]['darken'] }} !important;}
+  .nopaque-service-color[data-service="{{ service }}"].lighten {background-color: {{ colors['services'][service]['lighten'] }} !important;}
+  .nopaque-service-color-text[data-service="{{ service }}"].text-lighten {color: {{ colors['services'][service]['lighten'] }} !important;}
+  .nopaque-service-color-border[data-service="{{ service }}"].border-lighten {border-color: {{ colors['services'][service]['lighten'] }} !important;}
   {% endfor %}
 
-  {% for status in colors['status'] %}
-  .status-color[data-status="{{ status }}"] {background-color: {{ colors['status'][status] }} !important;}
+  {% for status_type in colors['status'] %}
+  {% for status in colors['status'][status_type] %}
+  .nopaque-{{ status_type }}-status-color[data-{{status_type}}-status="{{ status }}"] {background-color: {{ colors['status'][status_type][status] }} !important;}
+  {% endfor %}
   {% endfor %}
 </style>
diff --git a/app/templates/admin/edit_user.html.j2 b/app/templates/admin/edit_user.html.j2
index d824c112..f44ccb7c 100644
--- a/app/templates/admin/edit_user.html.j2
+++ b/app/templates/admin/edit_user.html.j2
@@ -6,66 +6,132 @@
 <div class="container">
   <div class="row">
     <div class="col s12">
-      <h1 id="title">Edit user</h1>
+      <h1 id="title">{{ title }}</h1>
     </div>
 
-    <div class="col s12 m4">
-      <h2>{{ user.username }}</h2>
-      <p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren,</p>
-      <a class="waves-effect waves-light btn" href="{{ url_for('.user', user_id=user.hashid) }}"><i class="material-icons left">arrow_back</i>Back to user administration</a>
-    </div>
+    <div class="col s12">
+      <form method="POST">
+        {{ edit_general_settings_form.hidden_tag() }}
+        <div class="card">
+          <div class="card-content">
+            <span class="card-title">General settings</span>
+            {{ wtf.render_field(edit_general_settings_form.username, data_length='64', material_icon='person') }}
+            {{ wtf.render_field(edit_general_settings_form.email, data_length='254', material_icon='email') }}
+          </div>
+          <div class="card-action">
+            <div class="right-align">
+              {{ wtf.render_field(edit_general_settings_form.submit, material_icon='send') }}
+            </div>
+          </div>
+        </form>
+      </div>
+    </form>
 
-    <div class="col s12 m8">
+    <form method="POST">
+      {{ edit_interface_settings_form.hidden_tag() }}
       <div class="card">
-        <form method="POST">
-          <div class="card-content">
-            {{ form.hidden_tag() }}
-            {{ wtf.render_field(form.username, data_length='64', material_icon='account_circle') }}
-            {{ wtf.render_field(form.email, class_='validate', material_icon='email', type='email') }}
-            {{ wtf.render_field(form.role, material_icon='swap_vert') }}
-            <div class="row">
-              <div class="col s12"><p>&nbsp;</p></div>
-              <div class="col s1">
-                <p><i class="material-icons">brightness_3</i></p>
-              </div>
-              <div class="col s8">
-                <p>{{ form.dark_mode.label.text }}</p>
-                <p class="light">Enable dark mode to ease your eyes.</p>
-              </div>
-              <div class="col s3 right-align">
-                <div class="switch">
-                  <label>
-                    {{ form.dark_mode() }}
-                    <span class="lever"></span>
-                  </label>
-                </div>
-              </div>
-              <div class="col s12"><p>&nbsp;</p></div>
-              <div class="col s12 divider"></div>
-              <div class="col s12"><p>&nbsp;</p></div>
-              <div class="col s1">
-                <p><i class="material-icons">check</i></p>
-              </div>
-              <div class="col s8">
-                <p>{{ form.confirmed.label.text }}</p>
-                <p class="light">Change confirmation status manually.</p>
-              </div>
-              <div class="col s3 right-align">
-                <div class="switch">
-                  <label>
-                    {{ form.confirmed() }}
-                    <span class="lever"></span>
-                  </label>
-                </div>
+        <div class="card-content">
+          <span class="card-title">Interface settings</span>
+          <div class="row">
+            <div class="col s12"><p>&nbsp;</p></div>
+            <div class="col s1">
+              <p><i class="material-icons">brightness_3</i></p>
+            </div>
+            <div class="col s8">
+              <p>{{ edit_interface_settings_form.dark_mode.label.text }}</p>
+              <p class="light">Enable dark mode to ease your eyes.</p>
+            </div>
+            <div class="col s3 right-align">
+              <div class="switch">
+                <label>
+                  {{ edit_interface_settings_form.dark_mode() }}
+                  <span class="lever"></span>
+                </label>
               </div>
             </div>
           </div>
-          <div class="card-action right-align">
-            {{ wtf.render_field(form.submit, material_icon='send') }}
+        </div>
+        <div class="card-action">
+          <div class="right-align">
+            {{ wtf.render_field(edit_interface_settings_form.submit, material_icon='send') }}
           </div>
-        </form>
+        </div>
+      </div>
+    </form>
+
+    <form method="POST">
+      {{ edit_notification_settings_form.hidden_tag() }}
+      <div class="card">
+        <div class="card-content">
+          <span class="card-title">Notification settings</span>
+          {{ wtf.render_field(edit_notification_settings_form.job_status_mail_notification_level, material_icon='notifications') }}
+        </div>
+        <div class="card-action">
+          <div class="right-align">
+            {{ wtf.render_field(edit_notification_settings_form.submit, material_icon='send') }}
+          </div>
+        </div>
+      </div>
+    </form>
+
+    <form method="POST">
+      {{ admin_edit_user_form.hidden_tag() }}
+      <div class="card">
+        <div class="card-content">
+          <span class="card-title">Administrator settings</span>
+          {{ wtf.render_field(admin_edit_user_form.role, material_icon='swap_vert') }}
+          <div class="row">
+            <div class="col s12"><p>&nbsp;</p></div>
+            <div class="col s1">
+              <p><i class="material-icons">check</i></p>
+            </div>
+            <div class="col s8">
+              <p>{{ admin_edit_user_form.confirmed.label.text }}</p>
+              <p class="light">Change confirmation status manually.</p>
+            </div>
+            <div class="col s3 right-align">
+              <div class="switch">
+                <label>
+                  {{ admin_edit_user_form.confirmed() }}
+                  <span class="lever"></span>
+                </label>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="card-action right-align">
+          {{ wtf.render_field(admin_edit_user_form.submit, material_icon='send') }}
+        </div>
+      </div>
+    </form>
+
+    <div class="card">
+      <div class="card-content">
+        <span class="card-title">Delete account</span>
+        <p>Deleting an account has the following effects:</p>
+        <ul>
+          <li>All data associated with your corpora and jobs will be permanently deleted.</li>
+          <li>All settings will be permanently deleted.</li>
+        </ul>
+      </div>
+      <div class="card-action right-align">
+        <a href="#delete-account-modal" class="btn modal-trigger red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
       </div>
     </div>
   </div>
 </div>
 {% endblock page_content %}
+
+{% block modals %}
+{{ super() }}
+<div class="modal" id="delete-account-modal">
+  <div class="modal-content">
+    <h4>Confirm deletion</h4>
+    <p>Do you really want to delete your account and all associated data? All associated corpora, jobs and files will be permanently deleted!</p>
+  </div>
+  <div class="modal-footer">
+    <a href="#!" class="btn modal-close waves-effect waves-light">Cancel</a>
+    <a href="{{ url_for('.delete_user', user_id=user.id) }}" class="btn red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
+  </div>
+</div>
+{% endblock modals %}
diff --git a/app/templates/corpora/add_corpus.html.j2 b/app/templates/corpora/add_corpus.html.j2
index 9d7f24e4..820230c8 100644
--- a/app/templates/corpora/add_corpus.html.j2
+++ b/app/templates/corpora/add_corpus.html.j2
@@ -2,7 +2,7 @@
 {% from "corpora/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
diff --git a/app/templates/corpora/add_corpus_file.html.j2 b/app/templates/corpora/add_corpus_file.html.j2
index 8246821a..d1d3c4fd 100644
--- a/app/templates/corpora/add_corpus_file.html.j2
+++ b/app/templates/corpora/add_corpus_file.html.j2
@@ -2,7 +2,7 @@
 {% from "corpora/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
diff --git a/app/templates/corpora/analyse_corpus.html.j2 b/app/templates/corpora/analyse_corpus.html.j2
index 11389faf..d94ed274 100644
--- a/app/templates/corpora/analyse_corpus.html.j2
+++ b/app/templates/corpora/analyse_corpus.html.j2
@@ -1,11 +1,11 @@
 {% extends "base.html.j2" %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis" id="corpus-analysis-app-container"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis" id="corpus-analysis-app-container"{% endblock main_attribs %}
 
 {% block page_content %}
 <ul class="row tabs no-autoinit" id="corpus-analysis-app-extension-tabs">
-  <li class="tab col s3"><a class="active" href="#corpus-analysis-app-overview"><i class="nopaque-icons service-icon left" data-service="corpus-analysis"></i>Corpus analysis</a></li>
+  <li class="tab col s3"><a class="active" href="#corpus-analysis-app-overview"><i class="nopaque-icon nopaque-service-icon left" data-service="corpus-analysis"></i>Corpus analysis</a></li>
   <li class="tab col s3"><a href="#concordance-extension-container"><i class="material-icons left">list_alt</i>Concordance</a></li>
   <li class="tab col s3"><a href="#reader-extension-container"><i class="material-icons left">chrome_reader_mode</i>Reader</a></li>
 </ul>
diff --git a/app/templates/corpora/corpus.html.j2 b/app/templates/corpora/corpus.html.j2
index 7ca7b413..07f4373b 100644
--- a/app/templates/corpora/corpus.html.j2
+++ b/app/templates/corpora/corpus.html.j2
@@ -1,7 +1,7 @@
 {% extends "base.html.j2" %}
 {% from "corpora/_breadcrumbs.html.j2" import breadcrumbs with context %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -14,8 +14,8 @@
         <div class="col s4 m3 l2 right-align">
           <p>&nbsp;</p>
           <p>&nbsp;</p>
-          <span class="chip status status-color status-text white-text"></span>
-          <div class="active preloader-wrapper small status-spinner">
+          <span class="chip corpus-status nopaque-corpus-status-color nopaque-corpus-status-text white-text"></span>
+          <div class="active preloader-wrapper small corpus-status-spinner">
             <div class="spinner-layer spinner-blue-only">
               <div class="circle-clipper left">
                 <div class="circle"></div>
@@ -31,7 +31,7 @@
         </div>
       </div>
 
-      <div class="card service-color-border border-darken" data-service="corpus-analysis" style="border-top: 10px solid">
+      <div class="card nopaque-service-color-border border-darken" data-service="corpus-analysis" style="border-top: 10px solid">
         <div class="card-content">
           <div class="row">
             <div class="col s12">
@@ -64,9 +64,9 @@
           </div>
         </div>
         <div class="card-action right-align">
-          <a class="analyse-corpus-trigger btn disabled waves-effect waves-light" href="{{ url_for('corpora.analyse_corpus', corpus_id=corpus.id) }}"><i class="material-icons left">search</i>Analyze</a>
-          <a class="btn build-corpus-trigger disabled waves-effect waves-light" href="{{ url_for('corpora.build_corpus', corpus_id=corpus.id) }}"><i class="nopaque-icons left">K</i>Build</a>
-          <a class="btn disabled export-corpus-trigger waves-effect waves-light"><i class="material-icons left">import_export</i>Export</a>
+          <a class="btn corpus-analyse-trigger disabled waves-effect waves-light" href="{{ url_for('corpora.analyse_corpus', corpus_id=corpus.id) }}"><i class="material-icons left">search</i>Analyze</a>
+          <a class="btn corpus-build-trigger disabled waves-effect waves-light" href="{{ url_for('corpora.build_corpus', corpus_id=corpus.id) }}"><i class="nopaque-icon left">K</i>Build</a>
+          <a class="btn disabled export-corpus-trigger waves-effect waves-light" href="{{ url_for('corpora.export_corpus', corpus_id=corpus.id) }}"><i class="material-icons left">import_export</i>Export</a>
           <a class="btn modal-trigger red waves-effect waves-light" data-target="delete-corpus-modal"><i class="material-icons left">delete</i>Delete</a>
         </div>
       </div>
diff --git a/app/templates/corpora/corpus_file.html.j2 b/app/templates/corpora/corpus_file.html.j2
index 53ac550e..e779d34f 100644
--- a/app/templates/corpora/corpus_file.html.j2
+++ b/app/templates/corpora/corpus_file.html.j2
@@ -2,7 +2,7 @@
 {% from "corpora/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
diff --git a/app/templates/corpora/import_corpus.html.j2 b/app/templates/corpora/import_corpus.html.j2
index 865a3398..5d3e4107 100644
--- a/app/templates/corpora/import_corpus.html.j2
+++ b/app/templates/corpora/import_corpus.html.j2
@@ -2,7 +2,7 @@
 {% from "corpora/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
diff --git a/app/templates/jobs/job.html.j2 b/app/templates/jobs/job.html.j2
index f5f70769..42296b22 100644
--- a/app/templates/jobs/job.html.j2
+++ b/app/templates/jobs/job.html.j2
@@ -1,7 +1,7 @@
 {% extends "base.html.j2" %}
 {% from "jobs/_breadcrumbs.html.j2" import breadcrumbs with context %}
 
-{% block main_attribs %} class="service-scheme" data-service="{{ job.service }}"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="{{ job.service }}"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -9,13 +9,13 @@
     <div class="col s12" data-job-id="{{ job.hashid }}" data-user-id="{{ job.user.hashid }}" id="job-display">
       <div class="row">
         <div class="col s8 m9 l10">
-          <h1 id="title"><i style="font-size: inherit;" class="nopaque-icons service-icon" data-service="{{ job.service }}"></i> <span class="job-title"></span></h1>
+          <h1 id="title"><i style="font-size: inherit;" class="nopaque-icon nopaque-service-icon" data-service="{{ job.service }}"></i> <span class="job-title"></span></h1>
         </div>
         <div class="col s4 m3 l2 right-align">
           <p>&nbsp;</p>
           <p>&nbsp;</p>
-          <span class="chip status status-text status-color white-text"></span>
-          <div class="active preloader-wrapper small status-spinner">
+          <span class="chip job-status nopaque-job-status-text nopaque-job-status-color white-text"></span>
+          <div class="active preloader-wrapper small job-status-spinner">
             <div class="spinner-layer spinner-blue-only">
               <div class="circle-clipper left">
                 <div class="circle"></div>
@@ -31,7 +31,7 @@
         </div>
       </div>
 
-      <div class="card service-color-border border-darken" data-service="{{ job.service }}" style="border-top: 10px solid">
+      <div class="card nopaque-service-color-border border-darken" data-service="{{ job.service }}" style="border-top: 10px solid">
         <div class="card-content">
           <div class="row">
             <div class="col s12">
diff --git a/app/templates/main/dashboard.html.j2 b/app/templates/main/dashboard.html.j2
index 05f5b804..fbb19b48 100644
--- a/app/templates/main/dashboard.html.j2
+++ b/app/templates/main/dashboard.html.j2
@@ -40,8 +40,8 @@
               <ul class="pagination"></ul>
             </div>
             <div class="card-action right-align">
-              <a class="waves-effect waves-light btn" href="{{ url_for('corpora.import_corpus') }}"><i class="material-icons right">import_export</i>Import Corpus</a>
-              <a class="waves-effect waves-light btn" href="{{ url_for('corpora.add_corpus') }}">New corpus<i class="material-icons right">add</i></a>
+              <a class="btn disabled waves-effect waves-light" href="{{ url_for('corpora.import_corpus') }}"><i class="material-icons right">import_export</i>Import Corpus</a>
+              <a class="btn waves-effect waves-light" href="{{ url_for('corpora.add_corpus') }}">New corpus<i class="material-icons right">add</i></a>
             </div>
           </div>
         </div>
@@ -116,36 +116,36 @@
           <div class="card-panel center-align hoverable">
             <br>
             <a href="{{ url_for('services.service', service='file-setup') }}" class="btn-floating btn-large waves-effect waves-light" style="transform: scale(2);">
-              <i class="nopaque-icons service-color darken service-icon" data-service="file-setup"></i>
+              <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="file-setup"></i>
             </a>
             <br><br>
-            <p class="service-color-text darken" data-service="file-setup"><b>File setup</b></p>
+            <p class="nopaque-service-color-text darken" data-service="file-setup"><b>File setup</b></p>
             <p class="light">Digital copies of text based research data (books, letters, etc.) often comprise various files and formats. nopaque converts and merges those files to facilitate further processing.</p>
-            <a href="{{ url_for('services.service', service='file-setup') }}" class="waves-effect waves-light btn service-color darken" data-service="file-setup">Create Job</a>
+            <a href="{{ url_for('services.service', service='file-setup') }}" class="waves-effect waves-light btn nopaque-service-color darken" data-service="file-setup">Create Job</a>
           </div>
       </div>
       <div class="col s12 m4">
           <div class="card-panel center-align hoverable">
             <br>
             <a href="{{ url_for('services.service', service='tesseract-ocr') }}" class="btn-floating btn-large waves-effect waves-light" style="transform: scale(2);">
-              <i class="nopaque-icons service-color darken service-icon" data-service="tesseract-ocr" style="font-size: 2.5rem;"></i>
+              <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="tesseract-ocr" style="font-size: 2.5rem;"></i>
             </a>
             <br><br>
-            <p class="service-color-text darken" data-service="tesseract-ocr"><b>Optical Character Recognition</b></p>
+            <p class="nopaque-service-color-text darken" data-service="tesseract-ocr"><b>Optical Character Recognition</b></p>
             <p class="light">nopaque converts your image data – like photos or scans – into text data through a process called OCR. This step enables you to proceed with further computational analysis of your documents.</p>
-            <a href="{{ url_for('services.service', service='tesseract-ocr') }}" class="waves-effect waves-light btn service-color darken" data-service="tesseract-ocr">Create Job</a>
+            <a href="{{ url_for('services.service', service='tesseract-ocr') }}" class="waves-effect waves-light btn nopaque-service-color darken" data-service="tesseract-ocr">Create Job</a>
           </div>
       </div>
       <div class="col s12 m4">
           <div class="card-panel center-align hoverable">
             <br>
             <a href="{{ url_for('services.service', service='spacy-nlp') }}" class="btn-floating btn-large waves-effect waves-light" style="transform: scale(2);">
-              <i class="nopaque-icons service-color darken service-icon" data-service="spacy-nlp" style="font-size: 2.5rem;"></i>
+              <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="spacy-nlp" style="font-size: 2.5rem;"></i>
             </a>
             <br><br>
-            <p class="service-color-text darken" data-service="spacy-nlp"><b>Natural Language Processing</b></p>
+            <p class="nopaque-service-color-text darken" data-service="spacy-nlp"><b>Natural Language Processing</b></p>
             <p class="light">By means of computational linguistic data processing (tokenization, lemmatization, part-of-speech tagging and named-entity recognition) nopaque extracts additional information from your text.</p>
-            <a href="{{ url_for('services.service', service='spacy-nlp') }}" class="waves-effect waves-light btn service-color darken" data-service="spacy-nlp">Create Job</a>
+            <a href="{{ url_for('services.service', service='spacy-nlp') }}" class="waves-effect waves-light btn nopaque-service-color darken" data-service="spacy-nlp">Create Job</a>
           </div>
       </div>
     </div>
diff --git a/app/templates/main/index.html.j2 b/app/templates/main/index.html.j2
index 0bd343c3..7f41203d 100644
--- a/app/templates/main/index.html.j2
+++ b/app/templates/main/index.html.j2
@@ -21,22 +21,22 @@
         <div class="col s12">
           <div class="row">
             <div class="col s12 m6 l3 center-align">
-              <i class="large nopaque-icons secondary-color-text">A</i><br>
+              <i class="large nopaque-icon secondary-color-text">A</i><br>
               <b class="primary-color-text">Speeds up your work</b>
               <p class="light">All tools provided by nopaque are carefully selected to provide a complete tool suite without being held up by compatibility issues.</p>
             </div>
             <div class="col s12 m6 l3 center-align">
-              <i class="large nopaque-icons secondary-color-text">B</i><br>
+              <i class="large nopaque-icon secondary-color-text">B</i><br>
               <b class="primary-color-text">Cloud infrastructure</b>
               <p class="light">All computational work is processed within nopaque’s cloud infrastructure. You don't need to install any software. Great, right?</p>
             </div>
             <div class="col s12 m6 l3 center-align">
-              <i class="large nopaque-icons secondary-color-text">C</i><br>
+              <i class="large nopaque-icon secondary-color-text">C</i><br>
               <b class="primary-color-text">User friendly</b>
               <p class="light">You can start right away without having to read mile-long manuals. All services come with default settings that make it easy for you to just get going. Also great, right?</p>
             </div>
             <div class="col s12 m6 l3 center-align">
-              <i class="large nopaque-icons secondary-color-text">D</i><br>
+              <i class="large nopaque-icon secondary-color-text">D</i><br>
               <b class="primary-color-text">Meshing processes</b>
               <p class="light">No matter where you step in, nopaque facilitates and accompanies your research. Its workflow perfectly ties in with your research process.</p>
             </div>
@@ -77,34 +77,34 @@
           <div class="row">
             <div class="col s12 m6 l3 center-align">
               <a href="{{ url_for('services.service', service='file-setup') }}" class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-                <i class="nopaque-icons service-color darken service-icon" data-service="file-setup"></i>
+                <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="file-setup"></i>
               </a>
               <br><br>
-              <p class="service-color-text text-darken" data-service="file-setup"><b>File setup</b></p>
+              <p class="nopaque-service-color-text text-darken" data-service="file-setup"><b>File setup</b></p>
               <p class="light">Digital copies of text based research data (books, letters, etc.) often comprise various files and formats. nopaque converts and merges those files to facilitate further processing and the application of other services.</p>
             </div>
             <div class="col s12 m6 l3 center-align">
               <a href="{{ url_for('services.service', service='tesseract-ocr') }}" class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-                <i class="nopaque-icons service-color darken service-icon" data-service="tesseract-ocr"></i>
+                <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="tesseract-ocr"></i>
               </a>
               <br><br>
-              <p class="service-color-text text-darken" data-service="tesseract-ocr"><b>Optical Character Recognition</b></p>
+              <p class="nopaque-service-color-text text-darken" data-service="tesseract-ocr"><b>Optical Character Recognition</b></p>
               <p class="light">nopaque converts your image data – like photos or scans – into text data through OCR making it machine readable. This step enables you to proceed with further computational analysis of your documents.</p>
             </div>
             <div class="col s12 m6 l3 center-align">
               <a href="{{ url_for('services.service', service='nlp') }}" class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-                <i class="nopaque-icons service-color darken service-icon" data-service="nlp"></i>
+                <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="nlp"></i>
               </a>
               <br><br>
-              <p class="service-color-text text-darken" data-service="nlp"><b>Natural Language Processing</b></p>
+              <p class="nopaque-service-color-text text-darken" data-service="nlp"><b>Natural Language Processing</b></p>
               <p class="light">By means of computational linguistic data processing (tokenization, lemmatization, part-of-speech tagging and named-entity recognition) nopaque extracts additional information from your text.</p>
             </div>
             <div class="col s12 m6 l3 center-align">
               <a href="{{ url_for('services.service', service='corpus_analysis') }}" class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-                <i class="nopaque-icons service-color darken service-icon" data-service="corpus-analysis"></i>
+                <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="corpus-analysis"></i>
               </a>
               <br><br>
-              <p class="service-color-text text-darken" data-service="corpus-analysis"><b>Corpus analysis</b></p>
+              <p class="nopaque-service-color-text text-darken" data-service="corpus-analysis"><b>Corpus analysis</b></p>
               <p class="light">nopaque lets you create and upload as many text corpora as you want. It makes use of CQP Query Language, which allows for complex search requests with the aid of metadata and NLP tags.</p>
             </div>
           </div>
@@ -192,8 +192,8 @@
     <!-- <div class="col s12 m10"> -->
     <div class="col s12">
       <h3>Introduction video</h3>
-      <div class="responsive-youtube-video-container">
-        <iframe class="responsive-youtube-video" src="https://www.youtube-nocookie.com/embed/KPGZSW_7SWk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+      <div style="position: relative; width: 100%; height: 0; padding-bottom: 56.25%;">
+        <iframe style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;" src="https://www.youtube-nocookie.com/embed/KPGZSW_7SWk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
       </div>
     </div>
   </div>
diff --git a/app/templates/services/corpus_analysis.html.j2 b/app/templates/services/corpus_analysis.html.j2
index f89b46fc..d29f5035 100644
--- a/app/templates/services/corpus_analysis.html.j2
+++ b/app/templates/services/corpus_analysis.html.j2
@@ -1,7 +1,7 @@
 {% extends "base.html.j2" %}
 {% from "services/_breadcrumbs.html.j2" import breadcrumbs with context %}
 
-{% block main_attribs %} class="service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="corpus-analysis"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -13,7 +13,7 @@
     <div class="col s12 m3 push-m9">
       <div class="center-align">
         <a class="btn-floating btn-large btn-scale-x2 waves-effect waves-light" style="transform: scale(2);">
-          <i class="nopaque-icons service-color darken service-icon" data-service="corpus-analysis"></i>
+          <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="corpus-analysis"></i>
         </a>
       </div>
     </div>
diff --git a/app/templates/services/file_setup.html.j2 b/app/templates/services/file_setup.html.j2
index 9e70288c..ec2efede 100644
--- a/app/templates/services/file_setup.html.j2
+++ b/app/templates/services/file_setup.html.j2
@@ -2,7 +2,7 @@
 {% from "services/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="file-setup"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="file-setup"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -16,13 +16,13 @@
         <p class="hide-on-small-only">&nbsp;</p>
         <p class="hide-on-small-only">&nbsp;</p>
         <a class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-          <i class="nopaque-icons service-color darken service-icon" data-service="file-setup"></i>
+          <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="file-setup"></i>
         </a>
       </div>
     </div>
 
     <div class="col s12 m9 pull-m3">
-      <div class="card service-color-border border-darken" data-service="file-setup" style="border-top: 10px solid;">
+      <div class="card nopaque-service-color-border border-darken" data-service="file-setup" style="border-top: 10px solid;">
         <div class="card-content">
           <div class="row">
             <div class="col s12">
diff --git a/app/templates/services/spacy_nlp.html.j2 b/app/templates/services/spacy_nlp.html.j2
index 30fab84c..30516fb5 100644
--- a/app/templates/services/spacy_nlp.html.j2
+++ b/app/templates/services/spacy_nlp.html.j2
@@ -2,7 +2,7 @@
 {% from "services/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="spacy-nlp"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="spacy-nlp"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -16,13 +16,13 @@
         <p class="hide-on-small-only">&nbsp;</p>
         <p class="hide-on-small-only">&nbsp;</p>
         <a class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-          <i class="nopaque-icons service-color darken service-icon" data-service="spacy-nlp"></i>
+          <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="spacy-nlp"></i>
         </a>
       </div>
     </div>
 
     <div class="col s12 m9 pull-m3">
-      <div class="card service-color-border border-darken" data-service="spacy-nlp" style="border-top: 10px solid;">
+      <div class="card nopaque-service-color-border border-darken" data-service="spacy-nlp" style="border-top: 10px solid;">
         <div class="card-content">
           <div class="row">
             <div class="col s12 m6">
diff --git a/app/templates/services/tesseract_ocr.html.j2 b/app/templates/services/tesseract_ocr.html.j2
index 66121281..0a529cd8 100644
--- a/app/templates/services/tesseract_ocr.html.j2
+++ b/app/templates/services/tesseract_ocr.html.j2
@@ -2,7 +2,7 @@
 {% from "services/_breadcrumbs.html.j2" import breadcrumbs with context %}
 {% import "materialize/wtf.html.j2" as wtf %}
 
-{% block main_attribs %} class="service-scheme" data-service="tesseract-ocr"{% endblock main_attribs %}
+{% block main_attribs %} class="nopaque-service-scheme" data-service="tesseract-ocr"{% endblock main_attribs %}
 
 {% block page_content %}
 <div class="container">
@@ -16,13 +16,13 @@
         <p class="hide-on-small-only">&nbsp;</p>
         <p class="hide-on-small-only">&nbsp;</p>
         <a class="btn-floating btn-large btn-scale-x2 waves-effect waves-light">
-          <i class="nopaque-icons service-color darken service-icon" data-service="tesseract-ocr"></i>
+          <i class="nopaque-icon nopaque-service-color darken nopaque-service-icon" data-service="tesseract-ocr"></i>
         </a>
       </div>
     </div>
 
     <div class="col s12 m9 pull-m3">
-      <div class="card service-color-border border-darken" data-service="tesseract-ocr" style="border-top: 10px solid;">
+      <div class="card nopaque-service-color-border border-darken" data-service="tesseract-ocr" style="border-top: 10px solid;">
         <div class="card-content">
           <div class="row">
             <div class="col s12">
diff --git a/app/templates/settings/_breadcrumbs.html.j2 b/app/templates/settings/_breadcrumbs.html.j2
index 0856463c..33b8984c 100644
--- a/app/templates/settings/_breadcrumbs.html.j2
+++ b/app/templates/settings/_breadcrumbs.html.j2
@@ -1,12 +1,6 @@
 {% set breadcrumbs %}
 <li class="tab disabled"><i class="material-icons">navigate_next</i></li>
+{% if request.path == url_for('settings.index') %}
 <li class="tab"><a{%if request.path == url_for('settings.index') %} class="active"{% endif %} href="{{ url_for('settings.index') }}" target="_self">Settings</a></li>
-<li class="tab disabled"><i class="material-icons">navigate_next</i></li>
-{% if request.path == url_for('settings.change_password') %}
-<li class="tab"><a class="active" href="{{ url_for('settings.change_password') }}" target="_self">Change password</a></li>
-{% elif request.path == url_for('settings.edit_general_settings') %}
-<li class="tab"><a class="active" href="{{ url_for('settings.edit_general_settings') }}" target="_self">Edit general settings</a></li>
-{% elif request.path == url_for('settings.edit_notification_settings') %}
-<li class="tab"><a class="active" href="{{ url_for('settings.edit_notification_settings') }}" target="_self">Edit notification settings</a></li>
 {% endif %}
 {% endset %}
diff --git a/app/templates/settings/_menu.html.j2 b/app/templates/settings/_menu.html.j2
deleted file mode 100644
index 554a3f67..00000000
--- a/app/templates/settings/_menu.html.j2
+++ /dev/null
@@ -1,5 +0,0 @@
-<div class="collection">
-  <a href="{{ url_for('.edit_general_settings') }}" class="collection-item{%if request.path == url_for('.edit_general_settings') %} active{% endif %}">Edit general settings</a>
-  <a href="{{ url_for('.change_password') }}" class="collection-item{%if request.path == url_for('.change_password') %} active{% endif %}">Change password</a>
-  <a href="{{ url_for('.edit_notification_settings') }}" class="collection-item{%if request.path == url_for('.edit_notification_settings') %} active{% endif %}">Edit notification settings</a>
-</div>
diff --git a/app/templates/settings/change_password.html.j2 b/app/templates/settings/change_password.html.j2
deleted file mode 100644
index da71ec3f..00000000
--- a/app/templates/settings/change_password.html.j2
+++ /dev/null
@@ -1,36 +0,0 @@
-{% extends "base.html.j2" %}
-{% from "settings/_breadcrumbs.html.j2" import breadcrumbs with context %}
-{% import "materialize/wtf.html.j2" as wtf %}
-
-{% block page_content %}
-<div class="container">
-  <div class="row">
-    <div class="col s12">
-      <h1 id="title">{{ title }}</h1>
-    </div>
-
-    <div class="col s12 m4">
-      {% include 'settings/_menu.html.j2' %}
-    </div>
-
-    <div class="col s12 m8">
-      <div class="card">
-        <form enctype="multipart/form-data" method="POST">
-          <div class="card-content">
-            <span class="card-title">{{ title }}</span>
-            {{ form.hidden_tag() }}
-            {{ wtf.render_field(form.password, material_icon='vpn_key') }}
-            {{ wtf.render_field(form.new_password, material_icon='vpn_key') }}
-            {{ wtf.render_field(form.new_password2, material_icon='vpn_key') }}
-          </div>
-          <div class="card-action">
-            <div class="right-align">
-              {{ wtf.render_field(form.submit, material_icon='send') }}
-            </div>
-          </div>
-        </form>
-      </div>
-    </div>
-  </div>
-</div>
-{% endblock page_content %}
diff --git a/app/templates/settings/edit_general_settings.html.j2 b/app/templates/settings/edit_general_settings.html.j2
deleted file mode 100644
index cfae41a6..00000000
--- a/app/templates/settings/edit_general_settings.html.j2
+++ /dev/null
@@ -1,81 +0,0 @@
-{% extends "base.html.j2" %}
-{% from "settings/_breadcrumbs.html.j2" import breadcrumbs with context %}
-{% import "materialize/wtf.html.j2" as wtf %}
-
-{% block page_content %}
-<div class="container">
-  <div class="row">
-    <div class="col s12">
-      <h1 id="title">{{ title }}</h1>
-    </div>
-
-    <div class="col s12 m4">
-      {% include 'settings/_menu.html.j2' %}
-    </div>
-
-    <div class="col s12 m8">
-      <div class="card">
-        <form enctype="multipart/form-data" method="POST">
-          <div class="card-content">
-            <span class="card-title">{{ title }}</span>
-            {{ form.hidden_tag() }}
-            {{ wtf.render_field(form.username, data_length='64', material_icon='person') }}
-            {{ wtf.render_field(form.email, data_length='254', material_icon='email') }}
-            <div class="row">
-              <div class="col s12"><p>&nbsp;</p></div>
-              <div class="col s1">
-                <p><i class="material-icons">brightness_3</i></p>
-              </div>
-              <div class="col s8">
-                <p>{{ form.dark_mode.label.text }}</p>
-                <p class="light">Enable dark mode to ease your eyes.</p>
-              </div>
-              <div class="col s3 right-align">
-                <div class="switch">
-                  <label>
-                    {{ form.dark_mode() }}
-                    <span class="lever"></span>
-                  </label>
-                </div>
-              </div>
-            </div>
-          </div>
-          <div class="card-action">
-            <div class="right-align">
-              {{ wtf.render_field(form.submit, material_icon='send') }}
-            </div>
-          </div>
-        </form>
-      </div>
-
-      <div class="card">
-        <div class="card-content">
-          <span class="card-title">Delete account</span>
-          <p>Deleting an account has the following effects:</p>
-          <ul>
-            <li>All data associated with your corpora and jobs will be permanently deleted.</li>
-            <li>All settings will be permanently deleted.</li>
-          </ul>
-        </div>
-        <div class="card-action right-align">
-          <a href="#delete-account-modal" class="btn modal-trigger red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
-{% endblock page_content %}
-
-{% block modals %}
-{{ super() }}
-<div class="modal" id="delete-account-modal">
-  <div class="modal-content">
-    <h4>Confirm deletion</h4>
-    <p>Do you really want to delete your account and all associated data? All associated corpora, jobs and files will be permanently deleted!</p>
-  </div>
-  <div class="modal-footer">
-    <a href="#!" class="btn modal-close waves-effect waves-light">Cancel</a>
-    <a href="{{ url_for('.delete') }}" class="btn red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
-  </div>
-</div>
-{% endblock modals %}
diff --git a/app/templates/settings/edit_notification_settings.html.j2 b/app/templates/settings/edit_notification_settings.html.j2
deleted file mode 100644
index 74d98ba9..00000000
--- a/app/templates/settings/edit_notification_settings.html.j2
+++ /dev/null
@@ -1,35 +0,0 @@
-{% extends "base.html.j2" %}
-{% from "settings/_breadcrumbs.html.j2" import breadcrumbs with context %}
-{% import "materialize/wtf.html.j2" as wtf %}
-
-{% block page_content %}
-<div class="container">
-  <div class="row">
-    <div class="col s12">
-      <h1 id="title">{{ title }}</h1>
-    </div>
-
-    <div class="col s12 m4">
-      {% include 'settings/_menu.html.j2' %}
-    </div>
-
-    <div class="col s12 m8">
-      <div class="card">
-        <form enctype="multipart/form-data" method="POST">
-          <div class="card-content">
-            <span class="card-title">{{ title }}</span>
-            {{ form.hidden_tag() }}
-            {{ wtf.render_field(form.job_status_mail_notifications, material_icon='notifications') }}
-            {{ wtf.render_field(form.job_status_site_notifications, material_icon='feedback') }}
-          </div>
-          <div class="card-action">
-            <div class="right-align">
-              {{ wtf.render_field(form.submit, material_icon='send') }}
-            </div>
-          </div>
-        </form>
-      </div>
-    </div>
-  </div>
-</div>
-{% endblock page_content %}
diff --git a/app/templates/settings/index.html.j2 b/app/templates/settings/index.html.j2
new file mode 100644
index 00000000..1be9e284
--- /dev/null
+++ b/app/templates/settings/index.html.j2
@@ -0,0 +1,123 @@
+{% extends "base.html.j2" %}
+{% from "settings/_breadcrumbs.html.j2" import breadcrumbs with context %}
+{% import "materialize/wtf.html.j2" as wtf %}
+
+{% block page_content %}
+<div class="container">
+  <div class="row">
+    <div class="col s12">
+      <h1 id="title">{{ title }}</h1>
+    </div>
+
+    <div class="col s12">
+      <form method="POST">
+        {{ edit_general_settings_form.hidden_tag() }}
+        <div class="card">
+          <div class="card-content">
+            <span class="card-title">General settings</span>
+            {{ wtf.render_field(edit_general_settings_form.username, data_length='64', material_icon='person') }}
+            {{ wtf.render_field(edit_general_settings_form.email, data_length='254', material_icon='email') }}
+          </div>
+          <div class="card-action">
+            <div class="right-align">
+              {{ wtf.render_field(edit_general_settings_form.submit, material_icon='send') }}
+            </div>
+          </div>
+        </form>
+      </div>
+    </form>
+
+    <form method="POST">
+      {{ edit_interface_settings_form.hidden_tag() }}
+      <div class="card">
+        <div class="card-content">
+          <span class="card-title">Interface settings</span>
+          <div class="row">
+            <div class="col s12"><p>&nbsp;</p></div>
+            <div class="col s1">
+              <p><i class="material-icons">brightness_3</i></p>
+            </div>
+            <div class="col s8">
+              <p>{{ edit_interface_settings_form.dark_mode.label.text }}</p>
+              <p class="light">Enable dark mode to ease your eyes.</p>
+            </div>
+            <div class="col s3 right-align">
+              <div class="switch">
+                <label>
+                  {{ edit_interface_settings_form.dark_mode() }}
+                  <span class="lever"></span>
+                </label>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="card-action">
+          <div class="right-align">
+            {{ wtf.render_field(edit_interface_settings_form.submit, material_icon='send') }}
+          </div>
+        </div>
+      </div>
+    </form>
+
+    <form method="POST">
+      {{ edit_notification_settings_form.hidden_tag() }}
+      <div class="card">
+        <div class="card-content">
+          <span class="card-title">Notification settings</span>
+          {{ wtf.render_field(edit_notification_settings_form.job_status_mail_notification_level, material_icon='notifications') }}
+        </div>
+        <div class="card-action">
+          <div class="right-align">
+            {{ wtf.render_field(edit_notification_settings_form.submit, material_icon='send') }}
+          </div>
+        </div>
+      </div>
+    </form>
+
+    <form method="POST">
+      {{ change_password_form.hidden_tag() }}
+      <div class="card">
+        <div class="card-content">
+          <span class="card-title">Change Password</span>
+          {{ wtf.render_field(change_password_form.password, material_icon='vpn_key') }}
+          {{ wtf.render_field(change_password_form.new_password, material_icon='vpn_key') }}
+          {{ wtf.render_field(change_password_form.new_password_confirmation, material_icon='vpn_key') }}
+        </div>
+        <div class="card-action">
+          <div class="right-align">
+            {{ wtf.render_field(change_password_form.submit, material_icon='send') }}
+          </div>
+        </div>
+      </div>
+    </form>
+
+    <div class="card">
+      <div class="card-content">
+        <span class="card-title">Delete account</span>
+        <p>Deleting an account has the following effects:</p>
+        <ul>
+          <li>All data associated with your corpora and jobs will be permanently deleted.</li>
+          <li>All settings will be permanently deleted.</li>
+        </ul>
+      </div>
+      <div class="card-action right-align">
+        <a href="#delete-account-modal" class="btn modal-trigger red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock page_content %}
+
+{% block modals %}
+{{ super() }}
+<div class="modal" id="delete-account-modal">
+  <div class="modal-content">
+    <h4>Confirm deletion</h4>
+    <p>Do you really want to delete your account and all associated data? All associated corpora, jobs and files will be permanently deleted!</p>
+  </div>
+  <div class="modal-footer">
+    <a href="#!" class="btn modal-close waves-effect waves-light">Cancel</a>
+    <a href="{{ url_for('.delete') }}" class="btn red waves-effect waves-light"><i class="material-icons left">delete</i>Delete</a>
+  </div>
+</div>
+{% endblock modals %}
diff --git a/app/templates/tasks/email/notification.html.j2 b/app/templates/tasks/email/notification.html.j2
index 019dd456..6945f60d 100644
--- a/app/templates/tasks/email/notification.html.j2
+++ b/app/templates/tasks/email/notification.html.j2
@@ -1,7 +1,7 @@
 <p>Dear <b>{{ job.user.username }}</b>,</p>
 
 <p>The status of your Job "<b>{{ job.title }}</b>" has changed!</p>
-<p>It is now <b>{{ job.status }}</b>!</p>
+<p>It is now <b>{{ job.status.name.lower() }}</b>!</p>
 
 <p>You can access your Job here: <a href="{{ url_for('jobs.job', job_id=job.id) }}">{{ url_for('jobs.job', job_id=job.id) }}</a></p>
 
diff --git a/app/templates/tasks/email/notification.txt.j2 b/app/templates/tasks/email/notification.txt.j2
index be746b9c..3dba4927 100644
--- a/app/templates/tasks/email/notification.txt.j2
+++ b/app/templates/tasks/email/notification.txt.j2
@@ -1,7 +1,7 @@
 Dear {{ job.user.username }},
 
 The status of your Job "{{ job.title }}" has changed!
-It is now {{ job.status }}!
+It is now {{ job.status.name.lower() }}!
 
 You can access your Job here: {{ url_for('jobs.job', job_id=job.id) }}
 
diff --git a/migrations/README b/migrations/README
index 98e4f9c4..0e048441 100644
--- a/migrations/README
+++ b/migrations/README
@@ -1 +1 @@
-Generic single-database configuration.
\ No newline at end of file
+Single-database configuration for Flask.
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
index f8ed4801..ec9d45c2 100644
--- a/migrations/alembic.ini
+++ b/migrations/alembic.ini
@@ -11,7 +11,7 @@
 
 # Logging configuration
 [loggers]
-keys = root,sqlalchemy,alembic
+keys = root,sqlalchemy,alembic,flask_migrate
 
 [handlers]
 keys = console
@@ -34,6 +34,11 @@ level = INFO
 handlers =
 qualname = alembic
 
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
 [handler_console]
 class = StreamHandler
 args = (sys.stderr,)
diff --git a/migrations/env.py b/migrations/env.py
index 79b8174b..68feded2 100644
--- a/migrations/env.py
+++ b/migrations/env.py
@@ -3,8 +3,7 @@ from __future__ import with_statement
 import logging
 from logging.config import fileConfig
 
-from sqlalchemy import engine_from_config
-from sqlalchemy import pool
+from flask import current_app
 
 from alembic import context
 
@@ -21,10 +20,10 @@ logger = logging.getLogger('alembic.env')
 # for 'autogenerate' support
 # from myapp import mymodel
 # target_metadata = mymodel.Base.metadata
-from flask import current_app
 config.set_main_option(
-    'sqlalchemy.url', current_app.config.get(
-        'SQLALCHEMY_DATABASE_URI').replace('%', '%%'))
+    'sqlalchemy.url',
+    str(current_app.extensions['migrate'].db.get_engine().url).replace(
+        '%', '%%'))
 target_metadata = current_app.extensions['migrate'].db.metadata
 
 # other values from the config, defined by the needs of env.py,
@@ -72,11 +71,7 @@ def run_migrations_online():
                 directives[:] = []
                 logger.info('No changes in schema detected.')
 
-    connectable = engine_from_config(
-        config.get_section(config.config_ini_section),
-        prefix='sqlalchemy.',
-        poolclass=pool.NullPool,
-    )
+    connectable = current_app.extensions['migrate'].db.get_engine()
 
     with connectable.connect() as connection:
         context.configure(
diff --git a/migrations/versions/da9fd175af8c_.py b/migrations/versions/097aae1f02d7_.py
similarity index 53%
rename from migrations/versions/da9fd175af8c_.py
rename to migrations/versions/097aae1f02d7_.py
index 421c5059..ccac6756 100644
--- a/migrations/versions/da9fd175af8c_.py
+++ b/migrations/versions/097aae1f02d7_.py
@@ -1,8 +1,8 @@
 """empty message
 
-Revision ID: da9fd175af8c
+Revision ID: 097aae1f02d7
 Revises: 
-Create Date: 2019-10-23 08:11:02.741683
+Create Date: 2022-02-08 10:02:03.748588
 
 """
 from alembic import op
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = 'da9fd175af8c'
+revision = '097aae1f02d7'
 down_revision = None
 branch_labels = None
 depends_on = None
@@ -29,67 +29,108 @@ def upgrade():
     op.create_index(op.f('ix_roles_default'), 'roles', ['default'], unique=False)
     op.create_table('users',
     sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('role_id', sa.Integer(), nullable=True),
     sa.Column('confirmed', sa.Boolean(), nullable=True),
     sa.Column('email', sa.String(length=254), nullable=True),
+    sa.Column('last_seen', sa.DateTime(), nullable=True),
+    sa.Column('member_since', sa.DateTime(), nullable=True),
     sa.Column('password_hash', sa.String(length=128), nullable=True),
-    sa.Column('registration_date', sa.DateTime(), nullable=True),
-    sa.Column('role_id', sa.Integer(), nullable=True),
+    sa.Column('token', sa.String(length=32), nullable=True),
+    sa.Column('token_expiration', sa.DateTime(), nullable=True),
     sa.Column('username', sa.String(length=64), nullable=True),
-    sa.Column('is_dark', sa.Boolean(), nullable=True),
+    sa.Column('setting_dark_mode', sa.Boolean(), nullable=True),
+    sa.Column('setting_job_status_mail_notification_level', sa.Integer(), nullable=True),
     sa.ForeignKeyConstraint(['role_id'], ['roles.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)
+    op.create_index(op.f('ix_users_token'), 'users', ['token'], unique=True)
     op.create_index(op.f('ix_users_username'), 'users', ['username'], unique=True)
     op.create_table('corpora',
     sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
     sa.Column('creation_date', sa.DateTime(), nullable=True),
     sa.Column('description', sa.String(length=255), nullable=True),
+    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
+    sa.Column('status', sa.Integer(), nullable=True),
     sa.Column('title', sa.String(length=32), nullable=True),
-    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.Column('num_analysis_sessions', sa.Integer(), nullable=True),
+    sa.Column('num_tokens', sa.Integer(), nullable=True),
+    sa.Column('archive_file', sa.String(length=255), nullable=True),
     sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     op.create_table('jobs',
     sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
     sa.Column('creation_date', sa.DateTime(), nullable=True),
     sa.Column('description', sa.String(length=255), nullable=True),
     sa.Column('end_date', sa.DateTime(), nullable=True),
-    sa.Column('mem_mb', sa.Integer(), nullable=True),
-    sa.Column('n_cores', sa.Integer(), nullable=True),
     sa.Column('service', sa.String(length=64), nullable=True),
     sa.Column('service_args', sa.String(length=255), nullable=True),
     sa.Column('service_version', sa.String(length=16), nullable=True),
-    sa.Column('status', sa.String(length=16), nullable=True),
+    sa.Column('status', sa.Integer(), nullable=True),
     sa.Column('title', sa.String(length=32), nullable=True),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('tesseract_ocr_models',
+    sa.Column('creation_date', sa.DateTime(), nullable=True),
+    sa.Column('filename', sa.String(length=255), nullable=True),
+    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
+    sa.Column('mimetype', sa.String(length=255), nullable=True),
+    sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.Column('compatible_service_versions', sa.String(length=255), nullable=True),
+    sa.Column('description', sa.String(length=255), nullable=True),
+    sa.Column('publisher', sa.String(length=128), nullable=True),
+    sa.Column('publishing_year', sa.Integer(), nullable=True),
+    sa.Column('title', sa.String(length=64), nullable=True),
+    sa.Column('version', sa.String(length=16), nullable=True),
     sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     op.create_table('corpus_files',
-    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('creation_date', sa.DateTime(), nullable=True),
     sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('dir', sa.String(length=255), nullable=True),
+    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
+    sa.Column('mimetype', sa.String(length=255), nullable=True),
+    sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('corpus_id', sa.Integer(), nullable=True),
+    sa.Column('address', sa.String(length=255), nullable=True),
+    sa.Column('author', sa.String(length=255), nullable=True),
+    sa.Column('booktitle', sa.String(length=255), nullable=True),
+    sa.Column('chapter', sa.String(length=255), nullable=True),
+    sa.Column('editor', sa.String(length=255), nullable=True),
+    sa.Column('institution', sa.String(length=255), nullable=True),
+    sa.Column('journal', sa.String(length=255), nullable=True),
+    sa.Column('pages', sa.String(length=255), nullable=True),
+    sa.Column('publisher', sa.String(length=255), nullable=True),
+    sa.Column('publishing_year', sa.Integer(), nullable=True),
+    sa.Column('school', sa.String(length=255), nullable=True),
+    sa.Column('title', sa.String(length=255), nullable=True),
     sa.ForeignKeyConstraint(['corpus_id'], ['corpora.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     op.create_table('job_inputs',
-    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('creation_date', sa.DateTime(), nullable=True),
     sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('dir', sa.String(length=255), nullable=True),
+    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
+    sa.Column('mimetype', sa.String(length=255), nullable=True),
+    sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('job_id', sa.Integer(), nullable=True),
     sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     op.create_table('job_results',
-    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('creation_date', sa.DateTime(), nullable=True),
     sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('dir', sa.String(length=255), nullable=True),
+    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
+    sa.Column('mimetype', sa.String(length=255), nullable=True),
+    sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('job_id', sa.Integer(), nullable=True),
-    sa.Column('job_input_id', sa.Integer(), nullable=True),
+    sa.Column('description', sa.String(length=255), nullable=True),
     sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
-    sa.ForeignKeyConstraint(['job_input_id'], ['job_inputs.id'], ),
     sa.PrimaryKeyConstraint('id')
     )
     # ### end Alembic commands ###
@@ -100,9 +141,11 @@ def downgrade():
     op.drop_table('job_results')
     op.drop_table('job_inputs')
     op.drop_table('corpus_files')
+    op.drop_table('tesseract_ocr_models')
     op.drop_table('jobs')
     op.drop_table('corpora')
     op.drop_index(op.f('ix_users_username'), table_name='users')
+    op.drop_index(op.f('ix_users_token'), table_name='users')
     op.drop_index(op.f('ix_users_email'), table_name='users')
     op.drop_table('users')
     op.drop_index(op.f('ix_roles_default'), table_name='roles')
diff --git a/migrations/versions/099037c4aa06_.py b/migrations/versions/099037c4aa06_.py
deleted file mode 100644
index d9adf506..00000000
--- a/migrations/versions/099037c4aa06_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 099037c4aa06
-Revises: 66253783654f
-Create Date: 2020-04-27 09:17:15.039728
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '099037c4aa06'
-down_revision = '66253783654f'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('last_seen', sa.DateTime(), nullable=True))
-    op.add_column('users', sa.Column('setting_site_job_status_notifications', sa.String(length=16), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('users', 'setting_site_job_status_notifications')
-    op.drop_column('users', 'last_seen')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/0aa38a7973c5_.py b/migrations/versions/0aa38a7973c5_.py
deleted file mode 100644
index d242aaf5..00000000
--- a/migrations/versions/0aa38a7973c5_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 0aa38a7973c5
-Revises: 1210adfe1e34
-Create Date: 2019-11-06 09:33:46.296653
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '0aa38a7973c5'
-down_revision = '1210adfe1e34'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('analysis_ip', sa.String(length=16), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'analysis_ip')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/0d7aed934679_.py b/migrations/versions/0d7aed934679_.py
deleted file mode 100644
index 3c45d90c..00000000
--- a/migrations/versions/0d7aed934679_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 0d7aed934679
-Revises: b15366b25bea
-Create Date: 2020-06-30 13:57:48.782173
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '0d7aed934679'
-down_revision = 'b15366b25bea'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('result_files', sa.Column('corpus_metadata', sa.JSON(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('result_files', 'corpus_metadata')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/10a92d8f4616_.py b/migrations/versions/10a92d8f4616_.py
deleted file mode 100644
index c750487f..00000000
--- a/migrations/versions/10a92d8f4616_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 10a92d8f4616
-Revises: 4638e6509e13
-Create Date: 2020-05-12 11:24:46.022674
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '10a92d8f4616'
-down_revision = '4638e6509e13'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notifications_data', sa.Column('notified_on', sa.String(length=16), nullable=True))
-    op.drop_column('notifications_data', 'notified')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notifications_data', sa.Column('notified', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.drop_column('notifications_data', 'notified_on')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/1210adfe1e34_.py b/migrations/versions/1210adfe1e34_.py
deleted file mode 100644
index edf3a2c9..00000000
--- a/migrations/versions/1210adfe1e34_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 1210adfe1e34
-Revises: abf60427ff84
-Create Date: 2019-11-04 12:54:39.389263
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '1210adfe1e34'
-down_revision = 'abf60427ff84'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('status', sa.String(length=16), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'status')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/318074622d14_.py b/migrations/versions/318074622d14_.py
deleted file mode 100644
index 84dba226..00000000
--- a/migrations/versions/318074622d14_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 318074622d14
-Revises: 0d7aed934679
-Create Date: 2020-06-30 14:00:18.968769
-
-"""
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
-
-# revision identifiers, used by Alembic.
-revision = '318074622d14'
-down_revision = '0d7aed934679'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('result_files', 'corpus_metadata')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('result_files', sa.Column('corpus_metadata', postgresql.JSON(astext_type=sa.Text()), autoincrement=False, nullable=True))
-    # ### end Alembic commands ###
diff --git a/migrations/versions/33ec4d09b4ca_.py b/migrations/versions/33ec4d09b4ca_.py
deleted file mode 100644
index c5cd903e..00000000
--- a/migrations/versions/33ec4d09b4ca_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 33ec4d09b4ca
-Revises: 4cf5e5606a83
-Create Date: 2020-07-13 09:07:19.297185
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '33ec4d09b4ca'
-down_revision = '4cf5e5606a83'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('query_results', sa.Column('description', sa.String(length=255), nullable=True))
-    op.add_column('query_results', sa.Column('title', sa.String(length=32), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('query_results', 'title')
-    op.drop_column('query_results', 'description')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/389bcf564726_.py b/migrations/versions/389bcf564726_.py
deleted file mode 100644
index 4244fcc1..00000000
--- a/migrations/versions/389bcf564726_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 389bcf564726
-Revises: 318074622d14
-Create Date: 2020-06-30 14:03:33.384379
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '389bcf564726'
-down_revision = '318074622d14'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('result_files', sa.Column('corpus_metadata', sa.JSON(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('result_files', 'corpus_metadata')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/3d9a20b8b26c_.py b/migrations/versions/3d9a20b8b26c_.py
deleted file mode 100644
index a384f219..00000000
--- a/migrations/versions/3d9a20b8b26c_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 3d9a20b8b26c
-Revises: 421ba4373e50
-Create Date: 2020-05-14 09:30:56.266381
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '3d9a20b8b26c'
-down_revision = '421ba4373e50'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notification_email_data', sa.Column('notify_status', sa.String(length=16), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('notification_email_data', 'notify_status')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/421ba4373e50_.py b/migrations/versions/421ba4373e50_.py
deleted file mode 100644
index af0c8f10..00000000
--- a/migrations/versions/421ba4373e50_.py
+++ /dev/null
@@ -1,33 +0,0 @@
-"""empty message
-
-Revision ID: 421ba4373e50
-Revises: 5ba6786a847e
-Create Date: 2020-05-14 08:35:47.367125
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '421ba4373e50'
-down_revision = '5ba6786a847e'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('notification_email_data',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('job_id', sa.Integer(), nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('notification_email_data')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/4638e6509e13_.py b/migrations/versions/4638e6509e13_.py
deleted file mode 100644
index 66a965ca..00000000
--- a/migrations/versions/4638e6509e13_.py
+++ /dev/null
@@ -1,38 +0,0 @@
-"""empty message
-
-Revision ID: 4638e6509e13
-Revises: 471aa04c1a92
-Create Date: 2020-05-12 06:42:04.475585
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '4638e6509e13'
-down_revision = '471aa04c1a92'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notifications_data', sa.Column('notified', sa.Boolean(), nullable=True))
-    op.drop_column('notifications_data', 'notified_on_queued')
-    op.drop_column('notifications_data', 'notified_on_running')
-    op.drop_column('notifications_data', 'notified_on_submitted')
-    op.drop_column('notifications_data', 'notified_on_complete')
-    op.drop_column('notifications_data', 'notified_on_canceling')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notifications_data', sa.Column('notified_on_canceling', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.add_column('notifications_data', sa.Column('notified_on_complete', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.add_column('notifications_data', sa.Column('notified_on_submitted', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.add_column('notifications_data', sa.Column('notified_on_running', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.add_column('notifications_data', sa.Column('notified_on_queued', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.drop_column('notifications_data', 'notified')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/471aa04c1a92_.py b/migrations/versions/471aa04c1a92_.py
deleted file mode 100644
index c8cddf7e..00000000
--- a/migrations/versions/471aa04c1a92_.py
+++ /dev/null
@@ -1,38 +0,0 @@
-"""empty message
-
-Revision ID: 471aa04c1a92
-Revises: 62233e0cb2c7
-Create Date: 2020-05-11 14:07:12.934869
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '471aa04c1a92'
-down_revision = '62233e0cb2c7'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('notifications_data',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('job_id', sa.Integer(), nullable=True),
-    sa.Column('notified_on_submitted', sa.Boolean(), nullable=True),
-    sa.Column('notified_on_queued', sa.Boolean(), nullable=True),
-    sa.Column('notified_on_running', sa.Boolean(), nullable=True),
-    sa.Column('notified_on_complete', sa.Boolean(), nullable=True),
-    sa.Column('notified_on_canceling', sa.Boolean(), nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('notifications_data')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/4886241e0f5d_.py b/migrations/versions/4886241e0f5d_.py
deleted file mode 100644
index 3db8b0ac..00000000
--- a/migrations/versions/4886241e0f5d_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 4886241e0f5d
-Revises: 3d9a20b8b26c
-Create Date: 2020-05-14 11:58:08.498454
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '4886241e0f5d'
-down_revision = '3d9a20b8b26c'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('notification_email_data', sa.Column('creation_date', sa.DateTime(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('notification_email_data', 'creation_date')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/49a42c69e523_.py b/migrations/versions/49a42c69e523_.py
deleted file mode 100644
index 36281de5..00000000
--- a/migrations/versions/49a42c69e523_.py
+++ /dev/null
@@ -1,36 +0,0 @@
-"""empty message
-
-Revision ID: 49a42c69e523
-Revises: 099037c4aa06
-Create Date: 2020-04-27 11:18:32.999099
-
-"""
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
-
-# revision identifiers, used by Alembic.
-revision = '49a42c69e523'
-down_revision = '099037c4aa06'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('member_since', sa.DateTime(), nullable=True))
-    op.add_column('users', sa.Column('setting_job_status_mail_notifications', sa.String(length=16), nullable=True))
-    op.add_column('users', sa.Column('setting_job_status_site_notifications', sa.String(length=16), nullable=True))
-    op.drop_column('users', 'setting_site_job_status_notifications')
-    op.drop_column('users', 'registration_date')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('registration_date', postgresql.TIMESTAMP(), autoincrement=False, nullable=True))
-    op.add_column('users', sa.Column('setting_site_job_status_notifications', sa.VARCHAR(length=16), autoincrement=False, nullable=True))
-    op.drop_column('users', 'setting_job_status_site_notifications')
-    op.drop_column('users', 'setting_job_status_mail_notifications')
-    op.drop_column('users', 'member_since')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/4cf5e5606a83_.py b/migrations/versions/4cf5e5606a83_.py
deleted file mode 100644
index 350b1172..00000000
--- a/migrations/versions/4cf5e5606a83_.py
+++ /dev/null
@@ -1,35 +0,0 @@
-"""empty message
-
-Revision ID: 4cf5e5606a83
-Revises: e256f5cac75d
-Create Date: 2020-07-13 08:30:57.369850
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '4cf5e5606a83'
-down_revision = 'e256f5cac75d'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('query_results',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('user_id', sa.Integer(), nullable=True),
-    sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('query_metadata', sa.JSON(), nullable=True),
-    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('query_results')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/55d2b1a82ba9_.py b/migrations/versions/55d2b1a82ba9_.py
deleted file mode 100644
index e847160d..00000000
--- a/migrations/versions/55d2b1a82ba9_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 55d2b1a82ba9
-Revises: 8b2e0d43384a
-Create Date: 2021-04-14 12:10:08.675542
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '55d2b1a82ba9'
-down_revision = '8b2e0d43384a'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('jobs', 'mem_mb')
-    op.drop_column('jobs', 'n_cores')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('jobs', sa.Column('n_cores', sa.INTEGER(), autoincrement=False, nullable=True))
-    op.add_column('jobs', sa.Column('mem_mb', sa.INTEGER(), autoincrement=False, nullable=True))
-    # ### end Alembic commands ###
diff --git a/migrations/versions/5ba6786a847e_.py b/migrations/versions/5ba6786a847e_.py
deleted file mode 100644
index 62080605..00000000
--- a/migrations/versions/5ba6786a847e_.py
+++ /dev/null
@@ -1,42 +0,0 @@
-"""empty message
-
-Revision ID: 5ba6786a847e
-Revises: 10a92d8f4616
-Create Date: 2020-05-12 13:15:56.265610
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '5ba6786a847e'
-down_revision = '10a92d8f4616'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('notification_data',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('job_id', sa.Integer(), nullable=True),
-    sa.Column('notified_on', sa.String(length=16), nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    op.drop_table('notifications_data')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('notifications_data',
-    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-    sa.Column('job_id', sa.INTEGER(), autoincrement=False, nullable=True),
-    sa.Column('notified_on', sa.VARCHAR(length=16), autoincrement=False, nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], name='notifications_data_job_id_fkey'),
-    sa.PrimaryKeyConstraint('id', name='notifications_data_pkey')
-    )
-    op.drop_table('notification_data')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/62233e0cb2c7_.py b/migrations/versions/62233e0cb2c7_.py
deleted file mode 100644
index d8700503..00000000
--- a/migrations/versions/62233e0cb2c7_.py
+++ /dev/null
@@ -1,34 +0,0 @@
-"""empty message
-
-Revision ID: 62233e0cb2c7
-Revises: 68772b6560c3
-Create Date: 2020-05-04 09:42:25.408403
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '62233e0cb2c7'
-down_revision = '68772b6560c3'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('current_nr_of_tokens', sa.BigInteger(), nullable=True))
-    op.add_column('corpora', sa.Column('max_nr_of_tokens', sa.BigInteger(), nullable=True))
-    op.drop_column('corpora', 'analysis_container_name')
-    op.drop_column('corpora', 'analysis_container_ip')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('analysis_container_ip', sa.VARCHAR(length=16), autoincrement=False, nullable=True))
-    op.add_column('corpora', sa.Column('analysis_container_name', sa.VARCHAR(length=32), autoincrement=False, nullable=True))
-    op.drop_column('corpora', 'max_nr_of_tokens')
-    op.drop_column('corpora', 'current_nr_of_tokens')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/6227310c2112_.py b/migrations/versions/6227310c2112_.py
deleted file mode 100644
index f4307c2e..00000000
--- a/migrations/versions/6227310c2112_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 6227310c2112
-Revises: ded5a37f8a7b
-Create Date: 2020-01-30 09:28:06.770159
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '6227310c2112'
-down_revision = 'ded5a37f8a7b'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint('job_results_job_input_id_fkey', 'job_results', type_='foreignkey')
-    op.drop_column('job_results', 'job_input_id')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('job_results', sa.Column('job_input_id', sa.INTEGER(), autoincrement=False, nullable=True))
-    op.create_foreign_key('job_results_job_input_id_fkey', 'job_results', 'job_inputs', ['job_input_id'], ['id'])
-    # ### end Alembic commands ###
diff --git a/migrations/versions/66253783654f_.py b/migrations/versions/66253783654f_.py
deleted file mode 100644
index 1971d4dd..00000000
--- a/migrations/versions/66253783654f_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: 66253783654f
-Revises: 7378391345fa
-Create Date: 2020-04-27 08:26:19.772088
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '66253783654f'
-down_revision = '7378391345fa'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('setting_dark_mode', sa.Boolean(), nullable=True))
-    op.drop_column('users', 'is_dark')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('is_dark', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.drop_column('users', 'setting_dark_mode')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/68772b6560c3_.py b/migrations/versions/68772b6560c3_.py
deleted file mode 100644
index ee1228d3..00000000
--- a/migrations/versions/68772b6560c3_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 68772b6560c3
-Revises: 49a42c69e523
-Create Date: 2020-04-28 07:47:40.495698
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '68772b6560c3'
-down_revision = '49a42c69e523'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'last_edited_date')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/68ed092ffe5e_.py b/migrations/versions/68ed092ffe5e_.py
deleted file mode 100644
index bbd8b967..00000000
--- a/migrations/versions/68ed092ffe5e_.py
+++ /dev/null
@@ -1,50 +0,0 @@
-"""empty message
-
-Revision ID: 68ed092ffe5e
-Revises: be010d5d708d
-Create Date: 2021-11-24 15:33:16.258600
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '68ed092ffe5e'
-down_revision = 'be010d5d708d'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpus_files', sa.Column('creation_date', sa.DateTime(), nullable=True))
-    op.add_column('corpus_files', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
-    op.add_column('corpus_files', sa.Column('mimetype', sa.String(length=255), nullable=True))
-    op.add_column('job_inputs', sa.Column('creation_date', sa.DateTime(), nullable=True))
-    op.add_column('job_inputs', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
-    op.add_column('job_inputs', sa.Column('mimetype', sa.String(length=255), nullable=True))
-    op.add_column('job_results', sa.Column('creation_date', sa.DateTime(), nullable=True))
-    op.add_column('job_results', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
-    op.add_column('job_results', sa.Column('mimetype', sa.String(length=255), nullable=True))
-    op.add_column('query_results', sa.Column('creation_date', sa.DateTime(), nullable=True))
-    op.add_column('query_results', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
-    op.add_column('query_results', sa.Column('mimetype', sa.String(length=255), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('query_results', 'mimetype')
-    op.drop_column('query_results', 'last_edited_date')
-    op.drop_column('query_results', 'creation_date')
-    op.drop_column('job_results', 'mimetype')
-    op.drop_column('job_results', 'last_edited_date')
-    op.drop_column('job_results', 'creation_date')
-    op.drop_column('job_inputs', 'mimetype')
-    op.drop_column('job_inputs', 'last_edited_date')
-    op.drop_column('job_inputs', 'creation_date')
-    op.drop_column('corpus_files', 'mimetype')
-    op.drop_column('corpus_files', 'last_edited_date')
-    op.drop_column('corpus_files', 'creation_date')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/6c2227f1cc77_.py b/migrations/versions/6c2227f1cc77_.py
deleted file mode 100644
index 9d58746e..00000000
--- a/migrations/versions/6c2227f1cc77_.py
+++ /dev/null
@@ -1,59 +0,0 @@
-"""empty message
-
-Revision ID: 6c2227f1cc77
-Revises: befe5326787e
-Create Date: 2020-12-02 08:50:45.880062
-
-"""
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
-
-# revision identifiers, used by Alembic.
-revision = '6c2227f1cc77'
-down_revision = 'befe5326787e'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('notification_data')
-    op.drop_table('notification_email_data')
-    op.drop_column('corpus_files', 'dir')
-    op.drop_column('job_inputs', 'dir')
-    op.drop_column('job_results', 'dir')
-    op.drop_column('jobs', 'secure_filename')
-    op.alter_column('roles', 'permissions',
-               existing_type=sa.BIGINT(),
-               type_=sa.Integer(),
-               existing_nullable=True)
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('roles', 'permissions',
-               existing_type=sa.Integer(),
-               type_=sa.BIGINT(),
-               existing_nullable=True)
-    op.add_column('jobs', sa.Column('secure_filename', sa.VARCHAR(length=32), autoincrement=False, nullable=True))
-    op.add_column('job_results', sa.Column('dir', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.add_column('job_inputs', sa.Column('dir', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.add_column('corpus_files', sa.Column('dir', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.create_table('notification_email_data',
-    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-    sa.Column('job_id', sa.INTEGER(), autoincrement=False, nullable=True),
-    sa.Column('notify_status', sa.VARCHAR(length=16), autoincrement=False, nullable=True),
-    sa.Column('creation_date', postgresql.TIMESTAMP(), autoincrement=False, nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], name='notification_email_data_job_id_fkey'),
-    sa.PrimaryKeyConstraint('id', name='notification_email_data_pkey')
-    )
-    op.create_table('notification_data',
-    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-    sa.Column('job_id', sa.INTEGER(), autoincrement=False, nullable=True),
-    sa.Column('notified_on', sa.VARCHAR(length=16), autoincrement=False, nullable=True),
-    sa.ForeignKeyConstraint(['job_id'], ['jobs.id'], name='notification_data_job_id_fkey'),
-    sa.PrimaryKeyConstraint('id', name='notification_data_pkey')
-    )
-    # ### end Alembic commands ###
diff --git a/migrations/versions/7378391345fa_.py b/migrations/versions/7378391345fa_.py
deleted file mode 100644
index 133046a2..00000000
--- a/migrations/versions/7378391345fa_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 7378391345fa
-Revises: 6227310c2112
-Create Date: 2020-02-17 12:29:17.851954
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '7378391345fa'
-down_revision = '6227310c2112'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('jobs', sa.Column('secure_filename', sa.String(length=32), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('jobs', 'secure_filename')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/776761fb7466_.py b/migrations/versions/776761fb7466_.py
deleted file mode 100644
index 3106d5bd..00000000
--- a/migrations/versions/776761fb7466_.py
+++ /dev/null
@@ -1,32 +0,0 @@
-"""empty message
-
-Revision ID: 776761fb7466
-Revises: 0aa38a7973c5
-Create Date: 2019-11-07 08:34:01.676055
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '776761fb7466'
-down_revision = '0aa38a7973c5'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('analysis_container_ip', sa.String(length=16), nullable=True))
-    op.add_column('corpora', sa.Column('analysis_container_name', sa.String(length=32), nullable=True))
-    op.drop_column('corpora', 'analysis_ip')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('analysis_ip', sa.VARCHAR(length=16), autoincrement=False, nullable=True))
-    op.drop_column('corpora', 'analysis_container_name')
-    op.drop_column('corpora', 'analysis_container_ip')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/790ce9512e75_.py b/migrations/versions/790ce9512e75_.py
deleted file mode 100644
index 033b8d37..00000000
--- a/migrations/versions/790ce9512e75_.py
+++ /dev/null
@@ -1,42 +0,0 @@
-"""empty message
-
-Revision ID: 790ce9512e75
-Revises: 6c2227f1cc77
-Create Date: 2021-01-25 11:13:36.953269
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '790ce9512e75'
-down_revision = '6c2227f1cc77'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('corpora', 'current_nr_of_tokens',
-               existing_type=sa.BIGINT(),
-               type_=sa.Integer(),
-               existing_nullable=True)
-    op.alter_column('corpora', 'max_nr_of_tokens',
-               existing_type=sa.BIGINT(),
-               type_=sa.Integer(),
-               existing_nullable=True)
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('corpora', 'max_nr_of_tokens',
-               existing_type=sa.Integer(),
-               type_=sa.BIGINT(),
-               existing_nullable=True)
-    op.alter_column('corpora', 'current_nr_of_tokens',
-               existing_type=sa.Integer(),
-               type_=sa.BIGINT(),
-               existing_nullable=True)
-    # ### end Alembic commands ###
diff --git a/migrations/versions/8b2e0d43384a_.py b/migrations/versions/8b2e0d43384a_.py
deleted file mode 100644
index 9cc64a13..00000000
--- a/migrations/versions/8b2e0d43384a_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: 8b2e0d43384a
-Revises: 790ce9512e75
-Create Date: 2021-01-25 11:18:45.256537
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '8b2e0d43384a'
-down_revision = '790ce9512e75'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'max_nr_of_tokens')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('max_nr_of_tokens', sa.INTEGER(), autoincrement=False, nullable=True))
-    # ### end Alembic commands ###
diff --git a/migrations/versions/9d21b228d353_.py b/migrations/versions/9d21b228d353_.py
deleted file mode 100644
index 33368bbf..00000000
--- a/migrations/versions/9d21b228d353_.py
+++ /dev/null
@@ -1,50 +0,0 @@
-"""empty message
-
-Revision ID: 9d21b228d353
-Revises: 33ec4d09b4ca
-Create Date: 2020-07-15 08:58:59.062442
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = '9d21b228d353'
-down_revision = '33ec4d09b4ca'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('corpus_files', 'author',
-               existing_type=sa.VARCHAR(length=64),
-               type_=sa.String(length=255),
-               existing_nullable=True)
-    op.alter_column('corpus_files', 'title',
-               existing_type=sa.VARCHAR(length=64),
-               type_=sa.String(length=255),
-               existing_nullable=True)
-    op.alter_column('roles', 'permissions',
-               existing_type=sa.INTEGER(),
-               type_=sa.BigInteger(),
-               existing_nullable=True)
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('roles', 'permissions',
-               existing_type=sa.BigInteger(),
-               type_=sa.INTEGER(),
-               existing_nullable=True)
-    op.alter_column('corpus_files', 'title',
-               existing_type=sa.String(length=255),
-               type_=sa.VARCHAR(length=64),
-               existing_nullable=True)
-    op.alter_column('corpus_files', 'author',
-               existing_type=sa.String(length=255),
-               type_=sa.VARCHAR(length=64),
-               existing_nullable=True)
-    # ### end Alembic commands ###
diff --git a/migrations/versions/a4b3cf4ab098_.py b/migrations/versions/a4b3cf4ab098_.py
deleted file mode 100644
index 3876e3ef..00000000
--- a/migrations/versions/a4b3cf4ab098_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: a4b3cf4ab098
-Revises: c384d7b3268a
-Create Date: 2021-09-23 13:14:16.227784
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'a4b3cf4ab098'
-down_revision = 'c384d7b3268a'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('num_tokens', sa.Integer(), nullable=True))
-    op.drop_column('corpora', 'current_nr_of_tokens')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('current_nr_of_tokens', sa.INTEGER(), autoincrement=False, nullable=True))
-    op.drop_column('corpora', 'num_tokens')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/abf60427ff84_.py b/migrations/versions/abf60427ff84_.py
deleted file mode 100644
index 4b6cf652..00000000
--- a/migrations/versions/abf60427ff84_.py
+++ /dev/null
@@ -1,32 +0,0 @@
-"""empty message
-
-Revision ID: abf60427ff84
-Revises: da9fd175af8c
-Create Date: 2019-10-28 14:43:39.691313
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'abf60427ff84'
-down_revision = 'da9fd175af8c'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpus_files', sa.Column('author', sa.String(length=64), nullable=True))
-    op.add_column('corpus_files', sa.Column('publishing_year', sa.Integer(), nullable=True))
-    op.add_column('corpus_files', sa.Column('title', sa.String(length=64), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpus_files', 'title')
-    op.drop_column('corpus_files', 'publishing_year')
-    op.drop_column('corpus_files', 'author')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/ad0d835fe5b1_.py b/migrations/versions/ad0d835fe5b1_.py
deleted file mode 100644
index 0248e316..00000000
--- a/migrations/versions/ad0d835fe5b1_.py
+++ /dev/null
@@ -1,45 +0,0 @@
-"""empty message
-
-Revision ID: ad0d835fe5b1
-Revises: 68ed092ffe5e
-Create Date: 2022-01-18 16:23:45.673993
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'ad0d835fe5b1'
-down_revision = '68ed092ffe5e'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('tesseract_ocr_models',
-    sa.Column('creation_date', sa.DateTime(), nullable=True),
-    sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('last_edited_date', sa.DateTime(), nullable=True),
-    sa.Column('mimetype', sa.String(length=255), nullable=True),
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('user_id', sa.Integer(), nullable=True),
-    sa.Column('compatible_service_versions', sa.String(length=255), nullable=True),
-    sa.Column('description', sa.String(length=255), nullable=True),
-    sa.Column('publisher', sa.String(length=128), nullable=True),
-    sa.Column('publishing_year', sa.Integer(), nullable=True),
-    sa.Column('title', sa.String(length=64), nullable=True),
-    sa.Column('version', sa.String(length=16), nullable=True),
-    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    op.add_column('job_results', sa.Column('description', sa.String(length=255), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('job_results', 'description')
-    op.drop_table('tesseract_ocr_models')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/b15366b25bea_.py b/migrations/versions/b15366b25bea_.py
deleted file mode 100644
index 2e90d9b0..00000000
--- a/migrations/versions/b15366b25bea_.py
+++ /dev/null
@@ -1,42 +0,0 @@
-"""empty message
-
-Revision ID: b15366b25bea
-Revises: 4886241e0f5d
-Create Date: 2020-06-29 13:41:14.394680
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'b15366b25bea'
-down_revision = '4886241e0f5d'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('results',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('user_id', sa.Integer(), nullable=True),
-    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    op.create_table('result_files',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('result_id', sa.Integer(), nullable=True),
-    sa.Column('filename', sa.String(length=255), nullable=True),
-    sa.Column('dir', sa.String(length=255), nullable=True),
-    sa.ForeignKeyConstraint(['result_id'], ['results.id'], ),
-    sa.PrimaryKeyConstraint('id')
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('result_files')
-    op.drop_table('results')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/be010d5d708d_.py b/migrations/versions/be010d5d708d_.py
deleted file mode 100644
index 4a2d93b8..00000000
--- a/migrations/versions/be010d5d708d_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: be010d5d708d
-Revises: a4b3cf4ab098
-Create Date: 2021-09-24 09:34:54.173653
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'be010d5d708d'
-down_revision = 'a4b3cf4ab098'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('num_analysis_sessions', sa.Integer(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'num_analysis_sessions')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/befe5326787e_.py b/migrations/versions/befe5326787e_.py
deleted file mode 100644
index 11839d5c..00000000
--- a/migrations/versions/befe5326787e_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: befe5326787e
-Revises: ecaf75fece7b
-Create Date: 2020-10-16 13:32:09.620960
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'befe5326787e'
-down_revision = 'ecaf75fece7b'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('archive_file', sa.String(length=255), nullable=True))
-    op.drop_column('corpora', 'archive_dir')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('archive_dir', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.drop_column('corpora', 'archive_file')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/c3827cddea6e_.py b/migrations/versions/c3827cddea6e_.py
deleted file mode 100644
index eb8f3ea1..00000000
--- a/migrations/versions/c3827cddea6e_.py
+++ /dev/null
@@ -1,43 +0,0 @@
-"""empty message
-
-Revision ID: c3827cddea6e
-Revises: 9d21b228d353
-Create Date: 2020-07-15 12:33:24.574579
-
-"""
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
-
-# revision identifiers, used by Alembic.
-revision = 'c3827cddea6e'
-down_revision = '9d21b228d353'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('result_files')
-    op.drop_table('results')
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('result_files',
-    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-    sa.Column('result_id', sa.INTEGER(), autoincrement=False, nullable=True),
-    sa.Column('filename', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-    sa.Column('dir', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-    sa.ForeignKeyConstraint(['result_id'], ['results.id'], name='result_files_result_id_fkey'),
-    sa.PrimaryKeyConstraint('id', name='result_files_pkey')
-    )
-    op.create_table('results',
-    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-    sa.Column('user_id', sa.INTEGER(), autoincrement=False, nullable=True),
-    sa.Column('corpus_metadata', postgresql.JSON(astext_type=sa.Text()), autoincrement=False, nullable=True),
-    sa.ForeignKeyConstraint(['user_id'], ['users.id'], name='results_user_id_fkey'),
-    sa.PrimaryKeyConstraint('id', name='results_pkey')
-    )
-    # ### end Alembic commands ###
diff --git a/migrations/versions/c384d7b3268a_.py b/migrations/versions/c384d7b3268a_.py
deleted file mode 100644
index aaffd8d2..00000000
--- a/migrations/versions/c384d7b3268a_.py
+++ /dev/null
@@ -1,32 +0,0 @@
-"""empty message
-
-Revision ID: c384d7b3268a
-Revises: 55d2b1a82ba9
-Create Date: 2021-09-14 09:11:45.409350
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'c384d7b3268a'
-down_revision = '55d2b1a82ba9'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('users', sa.Column('token', sa.String(length=32), nullable=True))
-    op.add_column('users', sa.Column('token_expiration', sa.DateTime(), nullable=True))
-    op.create_index(op.f('ix_users_token'), 'users', ['token'], unique=True)
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_index(op.f('ix_users_token'), table_name='users')
-    op.drop_column('users', 'token_expiration')
-    op.drop_column('users', 'token')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/ded5a37f8a7b_.py b/migrations/versions/ded5a37f8a7b_.py
deleted file mode 100644
index 141e4786..00000000
--- a/migrations/versions/ded5a37f8a7b_.py
+++ /dev/null
@@ -1,44 +0,0 @@
-"""empty message
-
-Revision ID: ded5a37f8a7b
-Revises: 776761fb7466
-Create Date: 2020-01-08 14:39:32.182439
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'ded5a37f8a7b'
-down_revision = '776761fb7466'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpus_files', sa.Column('address', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('booktitle', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('chapter', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('editor', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('institution', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('journal', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('pages', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('publisher', sa.String(length=255), nullable=True))
-    op.add_column('corpus_files', sa.Column('school', sa.String(length=255), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpus_files', 'school')
-    op.drop_column('corpus_files', 'publisher')
-    op.drop_column('corpus_files', 'pages')
-    op.drop_column('corpus_files', 'journal')
-    op.drop_column('corpus_files', 'institution')
-    op.drop_column('corpus_files', 'editor')
-    op.drop_column('corpus_files', 'chapter')
-    op.drop_column('corpus_files', 'booktitle')
-    op.drop_column('corpus_files', 'address')
-    # ### end Alembic commands ###
diff --git a/migrations/versions/e256f5cac75d_.py b/migrations/versions/e256f5cac75d_.py
deleted file mode 100644
index 3e810f2b..00000000
--- a/migrations/versions/e256f5cac75d_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""empty message
-
-Revision ID: e256f5cac75d
-Revises: 389bcf564726
-Create Date: 2020-07-01 07:45:24.637861
-
-"""
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
-
-# revision identifiers, used by Alembic.
-revision = 'e256f5cac75d'
-down_revision = '389bcf564726'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('result_files', 'corpus_metadata')
-    op.add_column('results', sa.Column('corpus_metadata', sa.JSON(), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('results', 'corpus_metadata')
-    op.add_column('result_files', sa.Column('corpus_metadata', postgresql.JSON(astext_type=sa.Text()), autoincrement=False, nullable=True))
-    # ### end Alembic commands ###
diff --git a/migrations/versions/ecaf75fece7b_.py b/migrations/versions/ecaf75fece7b_.py
deleted file mode 100644
index 5e258a2c..00000000
--- a/migrations/versions/ecaf75fece7b_.py
+++ /dev/null
@@ -1,28 +0,0 @@
-"""empty message
-
-Revision ID: ecaf75fece7b
-Revises: c3827cddea6e
-Create Date: 2020-10-16 13:31:30.681269
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'ecaf75fece7b'
-down_revision = 'c3827cddea6e'
-branch_labels = None
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('corpora', sa.Column('archive_dir', sa.String(length=255), nullable=True))
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('corpora', 'archive_dir')
-    # ### end Alembic commands ###
diff --git a/nopaque.py b/nopaque.py
index ab8db5a6..243b915d 100644
--- a/nopaque.py
+++ b/nopaque.py
@@ -3,9 +3,18 @@
 import eventlet
 eventlet.monkey_patch()
 
-from app.models import (Corpus, CorpusFile, Job, JobInput, JobResult,
-                        Permission, QueryResult, Role, TesseractOCRModel, User)  # noqa
 from app import db, cli, create_app  # noqa
+from app.models import (
+    Corpus,
+    CorpusFile,
+    Job,
+    JobInput,
+    JobResult,
+    Permission,
+    Role,
+    TesseractOCRModel,
+    User
+)  # noqa
 from flask import Flask  # noqa
 from typing import Any, Dict  # noqa
 
@@ -31,7 +40,6 @@ def make_shell_context() -> Dict[str, Any]:
         'JobInput': JobInput,
         'JobResult': JobResult,
         'Permission': Permission,
-        'QueryResult': QueryResult,
         'Role': Role,
         'TesseractOCRModel': TesseractOCRModel,
         'User': User
diff --git a/requirements.txt b/requirements.txt
index 52770c57..ed85ab37 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 cqi
 docker
 eventlet==0.30.2
-Flask~=1.1
+Flask==1.1.4
 Flask-Assets
 Flask-Hashids
 Flask-HTTPAuth
@@ -14,7 +14,6 @@ Flask-SocketIO~=5.1
 Flask-SQLAlchemy
 Flask-WTF
 gunicorn
-hashids
 hiredis
 jsonschema
 psycopg2
-- 
GitLab