Default filter in Django admin

Question

How can I change the default filter choice from \'ALL\'? I have a field named as status which has three values: activate, pending and

Answer 1

This may be an old thread, but thought I would add my solution as I couldn't find better answers on google searches.

Do what (not sure if its Deminic Rodger, or ha22109) answered in the ModelAdmin for changelist_view

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

    def changelist_view(self, request, extra_context=None):

        if not request.GET.has_key('decommissioned__exact'):

            q = request.GET.copy()
            q['decommissioned__exact'] = 'N'
            request.GET = q
            request.META['QUERY_STRING'] = request.GET.urlencode()
        return super(MyModelAdmin,self).changelist_view(request, extra_context=extra_context)

Then we need to create a custom SimpleListFilter

class CustomFilter(admin.SimpleListFilter):
    title = 'Decommissioned'
    parameter_name = 'decommissioned'  # i chose to change it

def lookups(self, request, model_admin):
    return (
        ('All', 'all'),
        ('1', 'Decommissioned'),
        ('0', 'Active (or whatever)'),
    )

# had to override so that we could remove the default 'All' option
# that won't work with our default filter in the ModelAdmin class
def choices(self, cl):
    yield {
        'selected': self.value() is None,
        'query_string': cl.get_query_string({}, [self.parameter_name]),
        # 'display': _('All'),
    }
    for lookup, title in self.lookup_choices:
        yield {
            'selected': self.value() == lookup,
            'query_string': cl.get_query_string({
                self.parameter_name: lookup,
            }, []),
            'display': title,
        }

def queryset(self, request, queryset):
    if self.value() == '1':
        return queryset.filter(decommissioned=1)
    elif self.value() == '0':
        return queryset.filter(decommissioned=0)
    return queryset