Add filter to get all users without an active membership

website/members/admin.py

@@ -36,15 +36,21 @@ class ProfileInline(admin.StackedInline):
 
 
 class MembershipTypeListFilter(admin.SimpleListFilter):
-    title = _('membership type')
+    title = _('current membership type')
     parameter_name = 'membership'
 
     def lookups(self, request, model_admin):
-        return models.Membership.MEMBERSHIP_TYPES
+        return models.Membership.MEMBERSHIP_TYPES + (('none', _('None')),)
 
     def queryset(self, request, queryset):
         if not self.value():
             return queryset
+        if self.value() == 'none':
+            return queryset.exclude(
+                ~Q(membership=None) & (
+                    Q(membership__until__isnull=True) |
+                    Q(membership__until__gt=timezone.now().date())
+                ))
 
         return (queryset
                 .exclude(membership=None)

website/members/locale/nl/LC_MESSAGES/django.po

@@ -7,8 +7,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-10-31 19:21+0100\n"
-"PO-Revision-Date: 2018-10-31 19:20+0100\n"
+"POT-Creation-Date: 2018-11-12 19:36+0100\n"
+"PO-Revision-Date: 2018-11-12 19:37+0100\n"
 "Last-Translator: Thom Wiggers <thom@thomwiggers.nl>\n"
 "Language-Team: \n"
 "Language: nl\n"
@@ -19,8 +19,12 @@ msgstr ""
 "X-Generator: Poedit 2.2\n"
 
 #: admin.py
-msgid "membership type"
-msgstr "lidtype"
+msgid "current membership type"
+msgstr "huidig lidtype"
+
+#: admin.py
+msgid "None"
+msgstr "Geen"
 
 #: admin.py
 msgid "Age"