#33352: ModelAdmin.list_display option should support double-underscore
notation to
express field-of-associated-model
-----------------------------------------+------------------------
Reporter: odigity | Owner: nobody
Type: New feature | Status: new
Component: contrib.admin | Version: 4.0
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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Many of the options on ModelAdmin already support double-underscore
notation, such as 'ordering' and 'search_fields':
https://docs.djangoproject.com/en/3.2/ref/contrib/admin/#django.contrib.admin.ModelAdmin.search_fields
However, 'list_display' doesn't. This seems like an extremely common use
case that everyone would benefit from. For example, imagine I have the
following models:
{{{
class User(models.Model):
name = models.CharField(max_length=50)
class CreditCard(models.Model):
owner = models.ForeignKey(User)
label = models.CharField(max_length=30)
limit = models.IntegerField()
}}}
And wanted to include the credit card owner's name as a column on the
Changelist page for CreditCard. Right now I have to do this:
{{{
class CreditCardAdmin(admin.ModelAdmin):
list_display = [ 'owner_name', 'label', 'limit' ]
@admin.display(ordering='owner__name', description='Owner')
def owner_name(self, obj):
return obj.owner.name
}}}
Instead of just doing this:
{{{
class CreditCardAdmin(admin.ModelAdmin):
list_display = [ 'owner__name', 'label', 'limit' ]
}}}
BTW - A version of this is already implemented in the
[https://pypi.org/project/django-related-admin/ django-related-admin]
package:
https://github.com/PetrDlouhy/django-related-admin/
--
Ticket URL: <https://code.djangoproject.com/ticket/33352>
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