[Django] #34296: Formset validation does not consider models.UniqueConstraint

[Django]

#34296: Formset validation does not consider models.UniqueConstraint
-------------------------------------+-------------------------------------
Reporter: Jannis | Owner: nobody
Vajen |
Type: Bug | Status: new
Component: Database | Version: 4.1
layer (models, ORM) | Keywords: formset,
Severity: Normal | constraints
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
When saving a formset with data that violates the model's
`UniqueConstraint()`, no form validation error is reported during
`formset.is_valid()`. Instead an IntegrityError is raised during
`formset.save()`. This only happens with the rather new
`UniqueConstraint()`, the older method of using `Meta.unique_together`
doesn't suffer from this.

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Ticket URL: <https://code.djangoproject.com/ticket/34296>
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[Django]

#34296: Formset validation does not consider models.UniqueConstraint
-------------------------------------+-------------------------------------

Reporter: Jannis Vajen | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 4.1
(models, ORM) |
Severity: Normal | Resolution:
Keywords: formset, | Triage Stage:
constraints | Unreviewed
Has patch: 0 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------

Changes (by Jannis Vajen):

* Attachment "unique_constraint.diff" added.

Test to reproduce the issue

[Django]

#34296: Formset validation does not consider models.UniqueConstraint
-------------------------------------+-------------------------------------
Reporter: Jannis Vajen | Owner: nobody
Type: Bug | Status: new

Component: Database layer | Version: dev

(models, ORM) |
Severity: Normal | Resolution:
Keywords: formset, | Triage Stage:
constraints | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Jannis Vajen):

* version: 4.1 => dev

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Ticket URL: <https://code.djangoproject.com/ticket/34296#comment:1>