How can I customize list filters in Django admin?

How can I customize list filters in Django admin?

You can customize list filters in Django admin by creating a custom filter class and registering it with your model's admin.

Can you show me an example of a custom filter?

Sure! Here's a simple example:

from django.contrib import admin
from .models import MyModel

class CustomFilter(admin.SimpleListFilter):
    title = 'Custom Filter'
    parameter_name = 'custom'

    def lookups(self, request, model_admin):
        return [('value1', 'Value 1'), ('value2', 'Value 2')]

    def queryset(self, request, queryset):
        if self.value() == 'value1':
            return queryset.filter(field_name='value1')
        if self.value() == 'value2':
            return queryset.filter(field_name='value2')

class MyModelAdmin(admin.ModelAdmin):
    list_filter = (CustomFilter,)

admin.site.register(MyModel, MyModelAdmin)

What if I want to filter by a date range?

You can create a custom filter that accepts two date inputs. Use DateField for the filter fields and adjust the queryset accordingly.

Can I use multiple filters together?

Yes, you can combine multiple custom filters in the list_filter attribute of your ModelAdmin class.