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Fixed #33626 -- Cleared cache when unregistering a lookup.

This commit is contained in:
Himanshu-Balasamanta 2022-04-08 15:21:51 +05:30 committed by Mariusz Felisiak
parent 884b4c27f5
commit 06ebaa9e28
4 changed files with 13 additions and 11 deletions
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1
django/db/models/query_utils.py
View File

@ -217,6 +217,7 @@ class RegisterLookupMixin:
if lookup_name is None:
lookup_name = lookup.lookup_name
del cls.class_lookups[lookup_name]
cls._clear_cached_lookups()
def select_related_descend(field, restricted, requested, load_fields, reverse=False):

2
tests/custom_lookups/tests.py
View File

@ -323,6 +323,8 @@ class LookupTests(TestCase):
with register_lookup(models.ForeignObject, Exactly):
# getting the lookups again should re-cache
self.assertIn("exactly", field.get_lookups())
# Unregistration should bust the cache.
self.assertNotIn("exactly", field.get_lookups())
class BilateralTransformTests(TestCase):

1
tests/model_fields/test_jsonfield.py
View File

@ -88,7 +88,6 @@ class TestMethods(SimpleTestCase):
transform = field.get_transform("my_transform")
self.assertIs(transform, MyTransform)
models.JSONField._unregister_lookup(MyTransform)
models.JSONField._clear_cached_lookups()
transform = field.get_transform("my_transform")
self.assertIsInstance(transform, KeyTransformFactory)

20
tests/schema/tests.py
View File

@ -2770,16 +2770,16 @@ class SchemaTests(TransactionTestCase):
with connection.schema_editor() as editor:
editor.add_constraint(Author, constraint)
sql = constraint.create_sql(Author, editor)
table = Author._meta.db_table
constraints = self.get_constraints(table)
self.assertIn(constraint.name, constraints)
self.assertIs(constraints[constraint.name]["unique"], True)
# SQL contains columns.
self.assertIs(sql.references_column(table, "name"), True)
self.assertIs(sql.references_column(table, "weight"), True)
# Remove constraint.
with connection.schema_editor() as editor:
editor.remove_constraint(Author, constraint)
table = Author._meta.db_table
constraints = self.get_constraints(table)
self.assertIn(constraint.name, constraints)
self.assertIs(constraints[constraint.name]["unique"], True)
# SQL contains columns.
self.assertIs(sql.references_column(table, "name"), True)
self.assertIs(sql.references_column(table, "weight"), True)
# Remove constraint.
with connection.schema_editor() as editor:
editor.remove_constraint(Author, constraint)
self.assertNotIn(constraint.name, self.get_constraints(table))
@skipUnlessDBFeature("supports_expression_indexes")