Hey guys,
I was wondering if there is a way of making a field null vs not-null filter
without coding it yourself?
I tried:
list_filter = (('field_which_is_foreign_key', BooleanFieldListFilter),)
In the end I wrote this little one:
class MyFieldFilter(SimpleListFilter):
title = _(' field_which_is_foreign_key ')
parameter_name = ' field_which_is_foreign_key _n'
def lookups(self, request, model_admin):
return (
('T', _('Null')),
('F', _('Not Null')),
)
def queryset(self, request, queryset):
if self.value() == 'T':
return queryset.filter( field_which_is_foreign_key=None)
if self.value() == 'F':
return queryset.exclude( field_which_is_foreign_key =None)
But that's not very generic, I might need this for more fields!
Any way to do it with a bool filter?
- bram
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