def validate_category(self, category_id):
self.category = validate_category(self.context, category_id)
if not can_start_thread(self.context, self.category):
raise ValidationError(_("You can't create new threads in selected category."))
return self.category
def validate_top_category(self, category_id):
return validate_category(self.context, category_id, allow_root=True)