#8851: Add a default option to list_filter in the admin interface
-------------------------------------+-------------------------------------
Reporter: Riskable | Owner: Harro
<riskable@…> |
Type: New feature | Status: assigned
Component: contrib.admin | Version: master
Severity: Normal | Resolution:
Keywords: admin, list_filter, | Triage Stage: Accepted
default |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Harro):
Ok, I found a much nicer solution for this whole thing, no need to do
changes to urls at all.
Say you have an is_archived flag on a model and you want to default filter
the list to hide archived items:
{{{
class ArchivedListFilter(admin.SimpleListFilter):
title = _('Archived')
parameter_name = 'show_archived'
def lookups(self, request, model_admin):
return (
('all', _('Show all')),
('archived', _('Show archived only')),
)
def queryset(self, request, queryset):
show_archived = request.GET.get('show_archived')
if (show_archived == 'all'):
return queryset.all()
elif (show_archived == 'archived'):
return queryset.filter(is_archived=True)
return queryset.filter(is_archived=False)
def choices(self, cl):
yield {
'selected': self.value() is None,
'query_string': cl.get_query_string({},
[self.parameter_name]),
'display': _('Hide archived'), # Changed All to Hide
archived.
}
for lookup, title in self.lookup_choices:
yield {
'selected': self.value() == force_text(lookup),
'query_string': cl.get_query_string({
self.parameter_name: lookup,
}, []),
'display': title,
}
}}}
Simply add this filter and by default it will filter and on filter values
it will either show all items or only the archived items.
Now it would be nice to be able to change the label in for "All" in the
choices method without the need to override whole method, so maybe the
only fix would be to move the label to a propery on SimpleListFilter so
you can quickly override it.
--
Ticket URL: <https://code.djangoproject.com/ticket/8851#comment:40>
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