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Refs #35149 -- Made equivalent db_default alterations noops.

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This allows for an easier transition of preserving the literal nature of
non-compilable db_default.
This commit is contained in:
Simon Charette 2024-02-03 01:10:41 -05:00 • committed by Mariusz Felisiak
parent dfc77637ea
commit fe1cb62f5c
2 changed files with 25 additions and 0 deletions
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17
tests/schema/tests.py
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@ -2316,6 +2316,23 @@ class SchemaTests(TransactionTestCase):
columns = self.column_classes(Author)
self.assertIn("(missing)", columns["description"][1].default)
@isolate_apps("schema")
def test_db_default_equivalent_sql_noop(self):
class Author(Model):
name = TextField(db_default=Value("foo"))
class Meta:
app_label = "schema"
with connection.schema_editor() as editor:
editor.create_model(Author)
new_field = TextField(db_default="foo")
new_field.set_attributes_from_name("name")
new_field.model = Author
with connection.schema_editor() as editor, self.assertNumQueries(0):
editor.alter_field(Author, Author._meta.get_field("name"), new_field)
@skipUnlessDBFeature(
"supports_column_check_constraints", "can_introspect_check_constraints"
)