mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-10-31 09:41:08 +00:00
Code Issues 32 Releases Wiki Activity

Fixed #31064 -- Recreated auto-created many-to-many tables on primary key data type change on SQLite.

Browse Source 
Both local and remote auto-created many-to-many relationships were
affected.
This commit is contained in:
Simon Charette
2020-04-17 00:39:24 -04:00
committed by Mariusz Felisiak
parent 2ba55b2905
commit a548280857
2 changed files with 38 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
django/db/backends/sqlite3/schema.py
View File

@@ -361,12 +361,21 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
# Rebuild tables with FKs pointing to this field if the PK type changed.
if old_field.primary_key and new_field.primary_key and old_type != new_type:
related_models = set()
for remote_field in new_field.model._meta.related_objects:
opts = new_field.model._meta
for remote_field in opts.related_objects:
# Ignore self-relationship since the table was already rebuilt.
if remote_field.related_model == model:
continue
if not remote_field.many_to_many:
related_models.add(remote_field.related_model)
elif remote_field.through._meta.auto_created:
related_models.add(remote_field.through)
for many_to_many in opts.many_to_many:
# Ignore self-relationship since the table was already rebuilt.
if many_to_many.related_model == model:
continue
if many_to_many.remote_field.through._meta.auto_created:
related_models.add(many_to_many.remote_field.through)
for related_model in related_models:
self._remake_table(related_model)