#34979: inlineformset_factory sets max_num forms to one even though there is a
unique_together constraint
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Reporter: ehallein | Owner: nobody
Type: Uncategorized | Status: new
Component: contrib.admin | Version: 3.2
Severity: Normal | Keywords: inline admin
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 1 |
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I have a unique_together primary key in one of my models. When adding an
inline admin for that model, the interface only allows adding one new
object. I have tracked it down to code in django/django/forms/models.py:
{{{
fk = _get_foreign_key(parent_model, model, fk_name=fk_name)
# enforce a max_num=1 when the foreign key to the parent model is
unique.
if fk.unique:
max_num = 1
}}}
While this makes sense for a single unique primary key, it is the wrong
behavior for a composite primary key.
Is a fix needed in Django so multiple objects with unique_together primary
keys can be added as inlines, or should this be done using custom code?
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Ticket URL: <https://code.djangoproject.com/ticket/34979>
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