Make delete user function a background task

app/profile/background_functions.py

@@ -1,9 +0,0 @@
-from ..models import User
-
-
-def delete_user_(app, user_id):
-    with app.app_context():
-        user = User.query.get(user_id)
-        if user is None:
-            raise Exception('User {} not found!'.format(user_id))
-        user.delete()

app/profile/tasks.py

@@ -0,0 +1,18 @@
+from .. import logger
+from ..decorators import background
+from ..models import User
+import os
+import shutil
+
+
+@background
+def delete_user(app, user_id):
+    logger.warning('aufgerufen')
+    with app.app_context():
+        user = User.query.get(user_id)
+        if user is None:
+            raise Exception('User {} not found!'.format(user_id))
+        logger.warning('deleting user')
+        path = os.path.join(app.config['NOPAQUE_STORAGE'], str(user.id))
+        shutil.rmtree(path, ignore_errors=True)
+        user.delete()

app/profile/views.py

@@ -1,8 +1,7 @@
-from flask import current_app, flash, redirect, render_template, url_for
+from flask import flash, redirect, render_template, url_for
 from flask_login import current_user, login_required, logout_user
-from threading import Thread
 from . import profile
-from .background_functions import delete_user_
+from . import tasks
 from .forms import EditEmailForm, EditGeneralSettingsForm, EditPasswordForm
 from .. import db
 
@@ -56,9 +55,7 @@ def delete():
     """
     View to delete yourslef and all associated data.
     """
-    thread = Thread(target=delete_user_,
-                    args=(current_app._get_current_object(), current_user.id))
-    thread.start()
+    tasks.delete_user(current_user.id)
     logout_user()
     flash('Your account has been deleted!')
     return redirect(url_for('main.index'))