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Code Issues 32 Releases Wiki Activity

Fixed #32676 -- Prevented migrations from rendering related field attributes when not passed during initialization.

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Thanks Simon Charette for the implementation idea.
This commit is contained in:
David Wobrock
2021-04-28 21:15:26 +02:00
committed by Mariusz Felisiak
parent b746596f5f
commit b9df2b74b9
4 changed files with 80 additions and 13 deletions
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28
tests/field_deconstruction/tests.py
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@@ -432,6 +432,34 @@ class FieldDeconstructionTests(SimpleTestCase):
self.assertEqual(kwargs, {"to": "auth.Permission"})
self.assertEqual(kwargs['to'].setting_name, "AUTH_USER_MODEL")
def test_many_to_many_field_related_name(self):
class MyModel(models.Model):
flag = models.BooleanField(default=True)
m2m = models.ManyToManyField('self')
m2m_related_name = models.ManyToManyField(
'self',
related_name='custom_name',
related_query_name='custom_query_name',
limit_choices_to={'flag': True},
)
name, path, args, kwargs = MyModel.m2m.field.deconstruct()
self.assertEqual(path, 'django.db.models.ManyToManyField')
self.assertEqual(args, [])
# deconstruct() should not include attributes which were not passed to
# the field during initialization.
self.assertEqual(kwargs, {'to': 'field_deconstruction.MyModel'})
# Passed attributes.
name, path, args, kwargs = MyModel.m2m_related_name.field.deconstruct()
self.assertEqual(path, 'django.db.models.ManyToManyField')
self.assertEqual(args, [])
self.assertEqual(kwargs, {
'to': 'field_deconstruction.MyModel',
'related_name': 'custom_name',
'related_query_name': 'custom_query_name',
'limit_choices_to': {'flag': True},
})
def test_positive_integer_field(self):
field = models.PositiveIntegerField()
name, path, args, kwargs = field.deconstruct()