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Code Issues 32 Releases Wiki Activity

[1.7.x] Fixed #23630 -- Made AlterModelTable rename auto-created M2M tables.

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Thanks Naddiseo for the report, Andrew Godwin for guidance,
and Shai Berger for review.

Backport of 41b337efa0 from master
This commit is contained in:
Tim Graham
2014-10-22 09:59:00 -04:00
parent 41d5222a6a
commit f70a733abc
3 changed files with 46 additions and 2 deletions
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8
django/db/migrations/operations/models.py
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@@ -212,6 +212,14 @@ class AlterModelTable(Operation):
old_model._meta.db_table,
new_model._meta.db_table,
)
# Rename M2M fields whose name is based on this model's db_table
for (old_field, new_field) in zip(old_model._meta.local_many_to_many, new_model._meta.local_many_to_many):
if new_field.rel.through._meta.auto_created:
schema_editor.alter_db_table(
new_field.rel.through,
old_field.rel.through._meta.db_table,
new_field.rel.through._meta.db_table,
)
def database_backwards(self, app_label, schema_editor, from_state, to_state):
return self.database_forwards(app_label, schema_editor, from_state, to_state)