[FIX] website_event: make non-sensical error make sense

Whether a question can belong to itself is too philosophical of a
question for an error pop-up.

opw-3572599

X-original-commit: c798bbbde6fc6e8e42e144f90c163a2ae40a49b8
Part-of: odoo/odoo#144451

addons/website_event/i18n/website_event.pot

@@ -1034,6 +1034,13 @@ msgstr ""
 msgid "Question Type"
 msgstr ""
 
+#. module: website_event
+#. odoo-python
+#: code:addons/website_event/models/event_question.py:0
+#, python-format
+msgid "Question cannot be linked to both an Event and an Event Type."
+msgstr ""
+
 #. module: website_event
 #. odoo-python
 #: code:addons/website_event/models/event_question.py:0

addons/website_event/models/event_question.py

@@ -32,7 +32,7 @@ class EventQuestion(models.Model):
     @api.constrains('event_type_id', 'event_id')
     def _constrains_event(self):
         if any(question.event_type_id and question.event_id for question in self):
-            raise UserError(_('Question cannot belong to both the event category and itself.'))
+            raise UserError(_("Question cannot be linked to both an Event and an Event Type."))
 
     def write(self, vals):
         """ We add a check to prevent changing the question_type of a question that already has answers.