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Code Issues 32 Releases Wiki Activity

Fixed #32262 -- Fixed migration optimization for model creation and Meta options removal.

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This commit is contained in:
Hasan Ramezani
2020-12-17 22:06:58 +01:00
committed by Mariusz Felisiak
parent bb64b99b78
commit 8d582bf510
2 changed files with 41 additions and 1 deletions
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6
django/db/migrations/operations/models.py
View File

@@ -137,11 +137,15 @@ class CreateModel(ModelOperation):
),
]
elif isinstance(operation, AlterModelOptions) and self.name_lower == operation.name_lower:
options = {**self.options, **operation.options}
for key in operation.ALTER_OPTION_KEYS:
if key not in operation.options:
options.pop(key, None)
return [
CreateModel(
self.name,
fields=self.fields,
options={**self.options, **operation.options},
options=options,
bases=self.bases,
managers=self.managers,
),

36
tests/migrations/test_optimizer.py
View File

@@ -119,6 +119,42 @@ class OptimizerTests(SimpleTestCase):
]
)
def test_create_model_and_remove_model_options(self):
self.assertOptimizesTo(
[
migrations.CreateModel(
'MyModel',
fields=[],
options={'verbose_name': 'My Model'},
),
migrations.AlterModelOptions('MyModel', options={}),
],
[migrations.CreateModel('MyModel', fields=[])],
)
self.assertOptimizesTo(
[
migrations.CreateModel(
'MyModel',
fields=[],
options={
'verbose_name': 'My Model',
'verbose_name_plural': 'My Model plural',
},
),
migrations.AlterModelOptions(
'MyModel',
options={'verbose_name': 'My Model'},
),
],
[
migrations.CreateModel(
'MyModel',
fields=[],
options={'verbose_name': 'My Model'},
),
],
)
def _test_create_alter_foo_delete_model(self, alter_foo):
"""
CreateModel, AlterModelTable, AlterUniqueTogether/AlterIndexTogether/