AttributeError: '_AppCtxGlobals' object has no attribute 'user' in Flask

Question

I\'m trying to learn flask by following the Flask Mega Tutorial. In part 5, the login() view is edit like so:

@app.route(\'/login\', methods = [\'GET\', \'POST\'         


        

Answer 1

The same tutorial, a little further on, explains how g.user is set:

The g.user global

If you were paying attention, you will remember that in the login view function we check g.user to determine if a user is already logged in. To implement this we will use the before_request event from Flask. Any functions that are decorated with before_request will run before the view function each time a request is received. So this is the right place to setup our g.user variable (file app/views.py):

@app.before_request
def before_request():
    g.user = current_user

This is all it takes. The current_user global is set by Flask-Login, so we just put a copy in the g object to have better access to it. With this, all requests will have access to the logged in user, even inside templates.

Your code is apparently missing this before_request handler.