mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-07-24 05:36:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Fixed #21528 -- Added note about filtering form field's queryset based on instance to admin docs.

Browse source
This commit is contained in:
Caio Ariede 2019-11-18 10:53:30 -03:00 • committed by Mariusz Felisiak
parent e906ff6fca
commit d38c34119e
2 changed files with 14 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
docs/ref/contrib/admin/index.txt
View file

@ -1812,6 +1812,18 @@ templates used by the :class:`ModelAdmin` views:
This uses the ``HttpRequest`` instance to filter the ``Car`` foreign key
field to only display the cars owned by the ``User`` instance.
For more complex filters, you can use ``ModelForm.__init__()`` method to
filter based on an ``instance`` of your model (see
:ref:`fields-which-handle-relationships`). For example::
class CountryAdminForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['capital'].queryset = self.instance.cities.all()
class CountryAdmin(admin.ModelAdmin):
form = CountryAdminForm
.. method:: ModelAdmin.formfield_for_manytomany(db_field, request, **kwargs)
Like the ``formfield_for_foreignkey`` method, the