Commit c4c72ade authored by Simon Charette's avatar Simon Charette
Browse files

[1.9.x] Fixed #25852 -- Made sure AlterModelManager forces a reload of its model state. 

Thanks to Geoffrey Sechter and the Django NYC group for the report and Markus
for the review.

Backport of c4e372aa from master
parent ea63cf8d

django/db/migrations/operations/models.py

+1 −0
Original line number Diff line number Diff line
@@ -590,6 +590,7 @@ class AlterModelManagers(Operation): 
    def state_forwards(self, app_label, state):

        model_state = state.models[app_label, self.name_lower]

        model_state.managers = list(self.managers)

        state.reload_model(app_label, self.name_lower)



    def database_forwards(self, app_label, schema_editor, from_state, to_state):

        pass

docs/releases/1.8.8.txt

+3 −0
Original line number Diff line number Diff line
@@ -34,3 +34,6 @@ Bugfixes 
* Fixed missing ``varchar/text_pattern_ops`` index on ``CharField`` and

  ``TextField`` respectively when using ``AlterField`` on PostgreSQL

  (:ticket:`25412`).



* Fixed a state bug when using an ``AlterModelManagers`` operation

  (:ticket:`25852`).

docs/releases/1.9.1.txt

+3 −0
Original line number Diff line number Diff line
@@ -40,3 +40,6 @@ Bugfixes 


* Fixed evaluation of zero-length slices of ``QuerySet.values()``

  (:ticket:`25894`).



* Fixed a state bug when using an ``AlterModelManagers`` operation

  (:ticket:`25852`).

tests/migrations/test_operations.py

+5 −0
Original line number Diff line number Diff line
@@ -1393,6 +1393,11 @@ class OperationTests(OperationTestBase): 
        self.assertEqual(managers[2][0], "food_mgr_kwargs")

        self.assertIsInstance(managers[2][1], FoodManager)

        self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))

        rendered_state = new_state.apps

        model = rendered_state.get_model('test_almoma', 'pony')

        self.assertIsInstance(model.food_qs, models.Manager)

        self.assertIsInstance(model.food_mgr, FoodManager)

        self.assertIsInstance(model.food_mgr_kwargs, FoodManager)



    def test_alter_model_managers_emptying(self):

        """