add directory creation

app/main/views.py

@@ -60,10 +60,8 @@ def corpus(corpus_id):
 @main.route('/corpora/<int:corpus_id>/delete')
 @login_required
 def delete_corpus(corpus_id):
-    delete_thread = threading.Thread(
-        target=background_delete_corpus,
-        args=(current_app._get_current_object(), corpus_id)
-    )
+    corpus = Corpus.query.filter_by(id=corpus_id).first()
+    delete_thread = threading.Thread(corpus.delete())
     delete_thread.start()
     flash('Corpus has been deleted!')
     return redirect(url_for('main.dashboard'))
@@ -121,6 +119,16 @@ def dashboard():
                         title=create_corpus_form.title.data)
         db.session.add(corpus)
         db.session.commit()
+        dir = os.path.join(current_app.config['OPAQUE_STORAGE_DIRECTORY'],
+                           str(corpus.user_id),
+                           'corpora',
+                           str(corpus.id))
+        try:
+            os.makedirs(dir)
+        except OSError:
+            flash('OSError!')
+            db.session.remove(corpus)
+            db.session.commit()
         flash('Corpus created!')
         return redirect(url_for('main.dashboard'))
     return render_template('main/dashboard.html.j2',