Place editing field in form class

canteeneo/forms.py

@@ -49,13 +49,14 @@ class StallRegisterForm(FlaskForm):
     description = TextAreaField('Description', [DataRequired()])
     image = FileField('Image')
     location = SelectField(coerce=int)
+    editing = False
 
     def validate(self, editing=False):
         if not FlaskForm.validate(self):
             return False
 
         stall = Stall.query.filter_by(name=self.name.data).first()
-        if not editing:
+        if not self.editing:
             if stall is not None:
                 flash('Stall name is taken!')
                 return False

canteeneo/stall_views.py

@@ -42,10 +42,11 @@ def new_stall():
 def edit_stall(stall_id):
     stall = Stall.query.get(stall_id)
     form = StallRegisterForm()
+    form.editing = True
     form.location.choices = [(loc.id, loc.name) for loc in Location.query.all()]
     
     if request.method == 'POST':
-        if form.validate(editing=True):
+        if form.validate():
             stall.name = form.name.data
             stall.description = form.description.data
             stall.location_id = form.location.data