dal_admin_filters

Django-autocomplete-light filters for django admin.

default select2 widget

alt text

widget with title as placeholder

alt text

Requirements

This is extension for django-autocomplete-light so you need to install and configure it too.

Here will be minimum setup for example.

Refer to http://django-autocomplete-light.readthedocs.io/ for more detailed instructions.

Installation

Install using pip

pip install django-autocomplete-light dal_admin_filters

Update INSTALLED_APPS, you need too put django-autocomplete-light before admin

INSTALLED_APPS = [
    'dal',
    'dal_select2',
    'dal_admin_filters',
    #
    'django.contrib.admin',
    ... other stuff there ...
    ]

Configuration

Create autocomplete view

Let our models look like this


class Country(models.Model):
name = models.CharField(max_length=100, unique=True)

def __str__(self):
    return self.name

class Person(models.Model): name = models.CharField(max_length=100, unique=True) from_country = models.ForeignKey(Country)

def __str__(self):
    return self.name

* Then autocomplete view for country selection will be similar to next
``` python
from dal import autocomplete
from your_countries_app.models import Country

class CountryAutocomplete(autocomplete.Select2QuerySetView):
    def get_queryset(self):
        # Don't forget to filter out results depending on the visitor !
        if not self.request.user.is_authenticated():
            return Country.objects.none()

        qs = Country.objects.all()

        if self.q:
            qs = qs.filter(name__istartswith=self.q)

        return qs

from your_countries_app.views import CountryAutocomplete

urlpatterns = [
    url(
        r'^country-autocomplete/$',
        CountryAutocomplete.as_view(),
        name='country-autocomplete',
    ),
    url(r'^admin/', admin.site.urls),
]

Use filter in your admin.py

from django.contrib import admin
from your_countries_app.models import Country, Person
from dal_admin_filters import AutocompleteFilter

@admin.register(Country)
class CountryAdmin(admin.ModelAdmin):
    pass

class CountryFilter(AutocompleteFilter):
    title = 'Country from'                    # filter's title
    field_name = 'from_country'           # field name - ForeignKey to Country model
    autocomplete_url = 'country-autocomplete' # url name of Country autocomplete view

class CountryPlaceholderFilter(AutocompleteFilter):
    title = 'Country from'                    # filter's title
    field_name = 'from_country'           # field name - ForeignKey to Country model
    autocomplete_url = 'country-autocomplete' # url name of Country autocomplete view
    is_placeholder_title = True               # filter title will be shown as placeholder

class CountryCustomPlaceholderFilter(AutocompleteFilter):
    title = 'Country from'                    # filter's title
    parameter_name = 'from_country'           # field name - ForeignKey to Country model
    autocomplete_url = 'country-autocomplete' # url name of Country autocomplete view
    widget_attrs = {
        'data-placeholder': 'Filter by country name'
    }

@admin.register(Person)
class PersonAdmin(admin.ModelAdmin):
    class Media:    # Empty media class is required if you are using autocomplete filter
        pass        # If you know better solution for altering admin.media from filter instance
                    #   - please contact me or make a pull request

    list_filter = [CountryFilter]

If setup is done right, you will see the Select2 widget in admin filter in Person's changelist view.