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Code Issues 32 Releases Wiki Activity

Refs #34534 -- Reduced constraint operations with Meta.constraints when optimizing migrations.

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This commit is contained in:
Ben Cail
2024-01-31 15:25:30 -05:00
committed by Mariusz Felisiak
parent 9c5e382b98
commit 8b7ddd1b62
3 changed files with 115 additions and 9 deletions
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34
django/db/migrations/operations/models.py
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@@ -342,6 +342,40 @@ class CreateModel(ModelOperation):
managers=self.managers,
),
]
elif isinstance(operation, AddConstraint):
return [
CreateModel(
self.name,
fields=self.fields,
options={
**self.options,
"constraints": [
*self.options.get("constraints", []),
operation.constraint,
],
},
bases=self.bases,
managers=self.managers,
),
]
elif isinstance(operation, RemoveConstraint):
options_constraints = [
constraint
for constraint in self.options.get("constraints", [])
if constraint.name != operation.name
]
return [
CreateModel(
self.name,
fields=self.fields,
options={
**self.options,
"constraints": options_constraints,
},
bases=self.bases,
managers=self.managers,
),
]
return super().reduce(operation, app_label)