def registration(): form = form_handler.RegistrationForm(request.form) if request.method == "POST" and form.validate(): db_handler.add_user(form.username.data, form.password.data) session["logged"] = True flash("You have successfully registered") return redirect(url_for('index')) else: for field in form: for error in field.errors: flash(error) return render_template('register.html', form=form)