Simon Charette 9f7772e098 Fixed #28884 -- Fixed crash on SQLite when renaming a field in a model referenced by a ManyToManyField. ...

Introspected database constraints instead of relying on _meta.related_objects
to determine whether or not a table or a column is referenced on rename
operations.

This has the side effect of ignoring both db_constraint=False and virtual
fields such as GenericRelation which aren't backend by database level
constraints and thus shouldn't prevent the rename operations from being
performed in a transaction.

Regression in 095c1aaa898bed40568009db836aa8434f1b983d.

Thanks Tim for the additional tests and edits, and Mariusz for the review.

2017-12-22 15:19:05 -05:00

..

__init__.py

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fields.py

Refs #23919 -- Replaced usage of django.utils.functional.curry() with functools.partial()/partialmethod().

2017-09-06 13:11:18 -04:00

models.py

Fixed #27860 -- Dropped varchar_pattern_ops/text_pattern_ops index before altering char/text field in PostgreSQL.

2017-05-24 07:25:59 +02:00

tests.py

Fixed #28884 -- Fixed crash on SQLite when renaming a field in a model referenced by a ManyToManyField.

2017-12-22 15:19:05 -05:00