#27595: In admin panel, ForeignKey to model subclass using UUID as primary key
is
not automatically "selected"
-----------------------------------------+------------------------
Reporter: oyooyo | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.10
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Sample models.py:
{{{
from django.db import models
import uuid
class Base_Model(models.Model):
id = models.UUIDField(primary_key = True, default=uuid.uuid4,
editable=False)
# id = models.AutoField(primary_key = True)
prototype = models.ForeignKey('Prototype_Model', blank=True,
null=True)
def __str__(self):
return str(self.id)
class Prototype_Model(Base_Model):
pass
}}}
Sample admin.py:
{{{
from django.contrib import admin
from .models import Prototype_Model
class Base_Model_Admin(admin.ModelAdmin):
list_display = ['id', 'prototype']
admin.site.register(Prototype_Model, Base_Model_Admin)
}}}
Steps to reproduce:
1. Create a Prototype_Model via the admin. Leave the "prototype"
ForeignKey field empty.
2. Create another Prototype_Model via the admin. For the "prototype"
ForeignKey field, choose the first created Prototype_Model from the
dropdown
3. Switch to the Prototype_Model list view, it should show that the
"prototype" ForeignKey field of the second Prototype_Model indeed
references the first model
4. Click on this second Prototype_Model in order to access the change/edit
model form and look at the dropdown for the "prototype" field. The
expected behaviour is that the dropdown should have the referenced first
model automatically selected, but instead, nothing is automatically
selected.
**If an AutoField is used instead of a UUIDField as the primary key "id"
field (see commented out line in Base_Model), the behaviour is as
expected.**
--
Ticket URL: <https://code.djangoproject.com/ticket/27595>
Django <https://code.djangoproject.com/>
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