[1.0.X] Fixed #9969: choices with options groups (added in [7977]) now work correctly in the admin with list_display and list_filter. Thanks, ramiro. Backport of r10318 from trunk; thanks, cramm.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10340 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/filterspecs.py

@@ -90,7 +90,7 @@ class ChoicesFilterSpec(FilterSpec):
         yield {'selected': self.lookup_val is None,
                'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
                'display': _('All')}
-        for k, v in self.field.choices:
+        for k, v in self.field.flatchoices:
             yield {'selected': smart_unicode(k) == self.lookup_val,
                     'query_string': cl.get_query_string({self.lookup_kwarg: k}),
                     'display': v}

django/contrib/admin/templatetags/admin_list.py

@@ -205,8 +205,8 @@ def items_for_result(cl, result):
                     result_repr = EMPTY_CHANGELIST_VALUE
             # Fields with choices are special: Use the representation
             # of the choice.
-            elif f.choices:
+            elif f.flatchoices:
-                result_repr = dict(f.choices).get(field_val, EMPTY_CHANGELIST_VALUE)
+                result_repr = dict(f.flatchoices).get(field_val, EMPTY_CHANGELIST_VALUE)
             else:
                 result_repr = escape(field_val)
         if force_unicode(result_repr) == '':

tests/regressiontests/admin_views/fixtures/admin-views-fabrics.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<django-objects version="1.0">
+  <object pk="1" model="admin_views.fabric">
+    <field type="CharField" name="surface">x</field>
+  </object>
+  <object pk="2" model="admin_views.fabric">
+    <field type="CharField" name="surface">y</field>
+  </object>
+  <object pk="3" model="admin_views.fabric">
+    <field type="CharField" name="surface">plain</field>
+  </object>
+</django-objects>

tests/regressiontests/admin_views/models.py

@@ -134,6 +134,21 @@ class Thing(models.Model):
 class ThingAdmin(admin.ModelAdmin):
     list_filter = ('color',)
 
+class Fabric(models.Model):
+    NG_CHOICES = (
+        ('Textured', (
+                ('x', 'Horizontal'),
+                ('y', 'Vertical'),
+            )
+        ),
+        ('plain', 'Smooth'),
+    )
+    surface = models.CharField(max_length=20, choices=NG_CHOICES)
+
+class FabricAdmin(admin.ModelAdmin):
+    list_display = ('surface',)
+    list_filter = ('surface',)
+
 class Persona(models.Model):
     """
     A simple persona associated with accounts, to test inlining of related
@@ -208,6 +223,7 @@ admin.site.register(Thing, ThingAdmin)
 admin.site.register(Persona, PersonaAdmin)
 admin.site.register(Parent, ParentAdmin)
 admin.site.register(EmptyModel, EmptyModelAdmin)
+admin.site.register(Fabric, FabricAdmin)
 
 # We intentionally register Promo and ChapterXtra1 but not Chapter nor ChapterXtra2.
 # That way we cover all four cases:

tests/regressiontests/admin_views/tests.py

@@ -19,7 +19,7 @@ except NameError:
     from sets import Set as set
 
 class AdminViewBasicTest(TestCase):
-    fixtures = ['admin-views-users.xml', 'admin-views-colors.xml']
+    fixtures = ['admin-views-users.xml', 'admin-views-colors.xml', 'admin-views-fabrics.xml']
 
     def setUp(self):
         self.client.login(username='super', password='secret')
@@ -175,6 +175,37 @@ class AdminViewBasicTest(TestCase):
         response = self.client.get('/test_admin/admin/admin_views/thing/', {'color__id__exact': 'StringNotInteger!'})
         self.assertRedirects(response, '/test_admin/admin/admin_views/thing/?e=1')
 
+    def testNamedGroupFieldChoicesChangeList(self):
+        """
+        Ensures the admin changelist shows correct values in the relevant column
+        for rows corresponding to instances of a model in which a named group
+        has been used in the choices option of a field.
+        """
+        response = self.client.get('/test_admin/admin/admin_views/fabric/')
+        self.failUnlessEqual(response.status_code, 200)
+        self.failUnless(
+            '<a href="1/">Horizontal</a>' in response.content and
+            '<a href="2/">Vertical</a>' in response.content,
+            "Changelist table isn't showing the right human-readable values set by a model field 'choices' option named group."
+        )
+
+    def testNamedGroupFieldChoicesFilter(self):
+        """
+        Ensures the filter UI shows correctly when at least one named group has
+        been used in the choices option of a model field.
+        """
+        response = self.client.get('/test_admin/admin/admin_views/fabric/')
+        self.failUnlessEqual(response.status_code, 200)
+        self.failUnless(
+            '<div id="changelist-filter">' in response.content,
+            "Expected filter not found in changelist view."
+        )
+        self.failUnless(
+            '<a href="?surface__exact=x">Horizontal</a>' in response.content and
+            '<a href="?surface__exact=y">Vertical</a>' in response.content,
+            "Changelist filter isn't showing options contained inside a model field 'choices' option named group."
+        )
+
 def get_perm(Model, perm):
     """Return the permission object, for the Model"""
     ct = ContentType.objects.get_for_model(Model)