#26502: Lookup of attribute 'id' on model inheritance models in InlineModelAdmin
fails when using fk_name of parent model
-------------------------------------+-------------------------------------
Reporter: Braintelligence | Owner: nobody
Type: Uncategorized | Status: closed
Component: Forms | Version: 1.8
Severity: Normal | Resolution: invalid
Keywords: id, model | Triage Stage:
inheritance, inherited model, | Unreviewed
inline |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Braintelligence:
Old description:
> Having two models, of which one inherits from another, for example:
>
> {{{
> class Person(models.Model):
> firstname = models.CharField(max_length=255, blank=True)
> lastname = models.CharField(max_length=255)
> person_something = models.ForeignKey(Something)
>
> class Author(Person):
> publisher = models.CharField(max_length=255)
> author_something = models.ForeignKey(Something)
> }}}
>
> I can't access the id field like so:
>
> {{{
> class AuthorInline(admin.StackedInline):
> model = Author
> fk_name = 'person_something'
> fields = ['id', 'lastname', 'publisher']
>
> class SomethingAdmin(admin.ModelAdmin):
> inlines = [ AuthorInline ]
> list_display = ('somethinga', 'somethingb')
> }}}
>
> I get a KeyError and it says:
> "Key 'id' not found in 'AuthorForm'"
>
> Using Author._meta.get_all_field_names() the field id is definitely in
> the model, though. Removing 'id' from the fields list makes everything
> work.
>
> Am I doing something wrong or is this a legit bug?
New description:
Having two models, of which one inherits from another, for example:
{{{
class Person(models.Model):
firstname = models.CharField(max_length=255, blank=True)
lastname = models.CharField(max_length=255)
person_something = models.ForeignKey(Something)
class Author(Person):
publisher = models.CharField(max_length=255)
author_something = models.ForeignKey(Something)
}}}
I can't access the id field like so:
{{{
class AuthorInline(admin.StackedInline):
model = Author
fk_name = 'person_something'
fields = ['id', 'lastname', 'publisher']
readonly_fields = fields
class SomethingAdmin(admin.ModelAdmin):
inlines = [ AuthorInline ]
list_display = ('somethinga', 'somethingb')
}}}
I get a KeyError and it says:
"Key 'id' not found in 'AuthorForm'"
Using Author._meta.get_all_field_names() the field id is definitely in the
model, though. Removing 'id' from the fields list makes everything work.
Am I doing something wrong or is this a legit bug?
--
--
Ticket URL: <https://code.djangoproject.com/ticket/26502#comment:11>
Django <https://code.djangoproject.com/>
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