odoo/doc/howtos/backend/exercise-constraint-python

25 lines
879 B
Plaintext
Raw Normal View History

# HG changeset patch
# Parent 7a7d003fe38426a405ce0657a627a139133ec4dd
Index: doc-backend/openacademy/course.py
===================================================================
--- doc-backend.orig/openacademy/course.py 2014-08-22 17:02:00.987103191 +0200
+++ doc-backend/openacademy/course.py 2014-08-22 17:02:00.983103191 +0200
@@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
-from openerp import api, fields, models
+from openerp import api, fields, models, exceptions
class Course(models.Model):
_name = 'openacademy.course'
@@ -56,3 +56,9 @@
},
}
+ @api.one
+ @api.constrains('instructor_id', 'attendee_ids')
+ def _check_instructor_not_in_attendees(self):
+ if self.instructor_id and self.instructor_id in self.attendee_ids:
+ raise exceptions.ValidationError("A session's instructor can't be an attendee")
+