Re: [Django] #35022: RenameIndex crashes when there is a unique index on the same fields. (was: migration fails from index_together to models.Index)

[Django]

#35022: RenameIndex crashes when there is a unique index on the same fields.
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Reporter: Thomas Capricelli | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 5.0
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by Mariusz Felisiak):

* cc: David Wobrock (added)
* stage: Unreviewed => Accepted

Comment:

Thanks for the report. The following patch fixes this for me:

{{{#!diff
diff --git a/django/db/migrations/operations/models.py
b/django/db/migrations/operations/models.py
index d616cafb45..204174f911 100644
--- a/django/db/migrations/operations/models.py
+++ b/django/db/migrations/operations/models.py
@@ -1017,7 +1017,7 @@ class RenameIndex(IndexOperation):
from_model._meta.get_field(field).column for field in
self.old_fields
]
matching_index_name = schema_editor._constraint_names(
- from_model, column_names=columns, index=True
+ from_model, column_names=columns, index=True,
unique=False,
)
if len(matching_index_name) != 1:
raise ValueError(
}}}

Does it work for you?

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Ticket URL: <https://code.djangoproject.com/ticket/35022#comment:3>
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