#5863: list_display does not allow functions of referenced objects
-------------------------------------+-------------------------------------
Reporter: Beat Bolli | Owner: nobody
<me+django@…> | Status: closed
Type: Uncategorized | Version: master
Component: contrib.admin | Resolution: wontfix
Severity: Normal | Triage Stage: Design
Keywords: list_display | decision needed
Has patch: 1 | Needs documentation: 1
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Changes (by jcushman):
* ui_ux: => 0
Comment:
If anyone else who wants to be able to refer to foreign keys with
underscore syntax in list_display comes across this ticket, I put together
a subclass of ModelAdmin to do that:
http://djangosnippets.org/snippets/2887/
So you can just do:
{{{
class FooAdmin(RelatedFieldAdmin):
list_display = ('address__phone','address__country__country_code')
}}}
and it figures it out.
The benefit of using a subclass over luke's suggestion is we can override
queryset() to automatically add the related models to select_related(),
which prevents a database hit for each row. It also sets sensible defaults
for short_description and admin_order_field. Would love to hear (over at
djangosnippets) if anyone has suggested improvements.
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Ticket URL: <https://code.djangoproject.com/ticket/5863#comment:42>
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