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Code Issues 32 Releases Wiki Activity

Fixed #22435 -- Prevented adding a ManyToManyField from prompting for a default.

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Thanks andrewsg for the report.
This commit is contained in:
Tim Graham
2014-05-01 08:39:58 -04:00
parent 142c27218a
commit 3818d96426
2 changed files with 28 additions and 1 deletions
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26
tests/migrations/test_autodetector.py
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@@ -37,6 +37,10 @@ class AutodetectorTests(TestCase):
author_proxy_notproxy = ModelState("testapp", "AuthorProxy", [], {}, ("testapp.author", ))
author_unmanaged = ModelState("testapp", "AuthorUnmanaged", [], {"managed": False}, ("testapp.author", ))
author_unmanaged_managed = ModelState("testapp", "AuthorUnmanaged", [], {}, ("testapp.author", ))
author_with_m2m = ModelState("testapp", "Author", [
("id", models.AutoField(primary_key=True)),
("publishers", models.ManyToManyField("testapp.Publisher")),
])
publisher = ModelState("testapp", "Publisher", [("id", models.AutoField(primary_key=True)), ("name", models.CharField(max_length=100))])
publisher_with_author = ModelState("testapp", "Publisher", [("id", models.AutoField(primary_key=True)), ("author", models.ForeignKey("testapp.Author")), ("name", models.CharField(max_length=100))])
publisher_with_book = ModelState("testapp", "Publisher", [("id", models.AutoField(primary_key=True)), ("author", models.ForeignKey("otherapp.Book")), ("name", models.CharField(max_length=100))])
@@ -619,6 +623,28 @@ class AutodetectorTests(TestCase):
self.assertEqual(action.__class__.__name__, "DeleteModel")
self.assertEqual(action.name, "Publisher")
def test_add_many_to_many(self):
"""
Adding a ManyToManyField should not prompt for a default (#22435).
"""
class CustomQuestioner(MigrationQuestioner):
def ask_not_null_addition(self, field_name, model_name):
raise Exception("Should not have prompted for not null addition")
before = self.make_project_state([self.author_empty, self.publisher])
# Add ManyToManyField to author model
after = self.make_project_state([self.author_with_m2m, self.publisher])
autodetector = MigrationAutodetector(before, after, CustomQuestioner())
changes = autodetector._detect_changes()
# Right number of migrations?
self.assertEqual(len(changes['testapp']), 1)
migration = changes['testapp'][0]
# Right actions in right order?
self.assertEqual(len(migration.operations), 1)
action = migration.operations[0]
self.assertEqual(action.__class__.__name__, "AddField")
self.assertEqual(action.name, "publishers")
def test_many_to_many_removed_before_through_model(self):
"""
Removing a ManyToManyField and the "through" model in the same change must remove