def register(): """Registers the user.""" if g.user: return redirect(url_for('timeline')) error = None if request.method == 'POST': if not request.form['username']: error = 'You have to enter a username' elif not request.form['email'] or \ '@' not in request.form['email']: error = 'You have to enter a valid email address' elif not request.form['password']: error = 'You have to enter a password' elif request.form['password'] != request.form['password2']: error = 'The two passwords do not match' elif len(User.objects.filter(username=request.form['username'])): error = 'The username is already taken' else: user = User(username=request.form['username'], email=request.form['email'], password=request.form['password']) user.save() flash('You were successfully registered and can login now') return redirect(url_for('login')) return render_template('register.html', error=error)