#15121 closed (duplicate)
ForeignKey cascading deletes fail with Integrity Error when to_field attribute set to field other than primary key
| Reported by: | Owned by: | nobody | |
|---|---|---|---|
| Component: | Database layer (models, ORM) | Version: | 1.3-beta |
| Severity: | Keywords: | to_field, cascade, on_delete | |
| Cc: | Triage Stage: | Accepted | |
| Has patch: | no | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
ForeignKey cascading delete fails with Integrity Error when to_field argument set to field other than primary key. Setting the on_delete argument doesn't change this behavior either.
For example:
models.ForeignKey(Design, related_name='reports', to_field="uuid", on_delete=models.CASCADE)
Change History (2)
comment:1 by , 13 years ago
| Resolution: | → duplicate |
|---|---|
| Status: | new → closed |
| Triage Stage: | Unreviewed → Accepted |
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This is actually a symptom of #11319. If fixing #11319 turns out to be too difficult to do before 1.3, the deletion code could potentially work around it so deletions don't fail - but that's a last resort. Marking as duplicate.