#27377: Prepopulated Fields in Django Admin
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Reporter: Malik A. Rumi | Owner: nobody
Type: Bug | Status: new
Component: Documentation | Version: 1.10
Severity: Normal | Keywords: prepopulated_fields, admin.py
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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I don't know if this should be a bug report or a feature request.
I know that some variation on this question has been asked and answered
many times on Stack Overflow. Usually, however, it is about using a
foreign key. This is not my question. "prepopulated_fields doesn’t accept
DateTimeField, ForeignKey, nor ManyToManyField fields."
https://docs.djangoproject.com/en/1.10/ref/contrib/admin/#django.contrib.admin.ModelAdmin.prepopulated_fields
By implication, the docs are saying OneToOne fields are ok. This makes
even more sense where the inherited models are a concrete subclass of a
concrete base and we are really talking about a single object. For
example, a Place can be a Restaurant, and a Restaurant can have a closed
off, separate Bar where kids are not allowed.
https://docs.djangoproject.com/en/1.10/topics/db/models/#one-to-one-
relationships
However, admin.py is looking for a string to concatenate, not a filtered
queryset leading to a related field or object. Furthermore, it expects
that string to match the name of an existing field on the instant model,
not some other model, even if they are the same object. How, then, can one
use a OneToOne field or model in admin.py? I posted this to SO myself, and
got ZERO responses. http://stackoverflow.com/questions/39778945/django-
prepopulated-fields-inheritance
Yes, I know about model-utils and polymorphic. But if I am reading the
docs correctly, this should be possible without resort to those tools.
Besides, both are aimed primarily at queries, and say nothing directly
about this specific issue with prepopulated fields in admin.py. Please
advise. Thanks.
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Ticket URL: <https://code.djangoproject.com/ticket/27377>
Django <https://code.djangoproject.com/>
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