Commits

Ian Struble committed 1b125b1

Handling lookups for multiple FKs pointing to the same model. Multiple M2M and FK fields pointing to the same model should now be supported.

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Files changed (4)

django/contrib/admin/widgets.py

         model = self.settings.get('parent_model', None)
         if model:
             info = (model._meta.app_label, model._meta.object_name.lower())
-            # look for the real related name incase this is used by a formset
             qs = self.settings['queryset']
-            if self.settings.get('multiple', False):
-                names = [o.name for o in model._meta.many_to_many if o.rel.to == qs.model]
-                # formsset forms are named "form-##-<name>", hence the "-%s"
-                clean_name = [n for n in names if name == n or name.endswith("-%s" % n)][0]
-            else:
-                # @@@TODO check for multiple references to same model 
-                #         as above with m2m names?
-                clean_name = qs.model._meta.module_name
+            # Look for the real related name incase this is used by a formset
+            # but fall back to the qs model's name.
+            real_name = qs.model._meta.module_name
+            from django.db import models
+            if hasattr(model, name):
+                real_name = name
+            elif name.startswith('form-'):
+                # Hunting for fieldnames that match up with a formset field
+                # -- Please show me a better way to do this.
+                if self.settings.get('multiple', False):
+                    possible_fields = [f for f in model._meta.many_to_many 
+                                       if f.rel.to == qs.model]
+                else:
+                    possible_fields = [f for f in model._meta.fields 
+                                       if type(f) is models.ForeignKey and \
+                                           f.rel.to == qs.model]
+                for f in possible_fields:
+                    if name.endswith('-%s' % f.name):
+                        real_name = f.name
+                        break
             try:
-                url = reverse('admin:%s_%s_autocomplete' % info, args=[clean_name], current_app=self.admin_site.name)
+                url = reverse('admin:%s_%s_autocomplete' % info, args=[real_name], current_app=self.admin_site.name)
             except NoReverseMatch:
-                info = (self.admin_site.root_path, model._meta.app_label, model._meta.object_name.lower(), clean_name)
+                info = (self.admin_site.root_path, model._meta.app_label, model._meta.object_name.lower(), real_name)
                 url = '%s%s/%s/autocomplete/%s/' % info
         else:
             url = '../autocomplete/%s/' % name

tests/regressiontests/admin_widgets/models.py

 
 class Album(models.Model):
     band = models.ForeignKey(Band)
+    covered_band = models.ForeignKey(Band, related_name="original_band_set",
+                                     blank=True, null=True)
     name = models.CharField(max_length=100)
     cover_art = models.FileField(upload_to='albums')
     backside_art = MyFileField(upload_to='albums_back', null=True)

tests/regressiontests/admin_widgets/tests.py

 
 
 class AutocompleteWidgetTest(DjangoTestCase):
-    def test_render(self):
+    fixtures = ["admin-widgets-users.xml"]
+    admin_root = '/widget_admin'
+
+    def setUp(self):
         band = models.Band.objects.create(name='Linkin Park')
         band.album_set.create(
             name='Hybrid Theory', cover_art=r'albums\hybrid_theory.jpg'
         )
-        album = band.album_set.all()[0]
+        self.band = band
+        self.album = band.album_set.all()[0]
 
+    def test_render(self):
+        album = self.album
+        band = self.band
         widget_settings = {
             'fields': ('name',),
             'id': 'id',
             expected,
         )
 
+    def test_changelist_formsets(self):
+        self.client.login(username="super", password="secret")
+        response = self.client.get('%s/admin_widgets/album/' % self.admin_root )
+        self.assertContains(response,
+                            '<input type="hidden" name="form-0-band" value="%s" id="id_hidden_form-0-band" />' % self.band.pk)
+        self.assertContains(response,
+                            '<input type="text" id="id_form-0-band" value="%s" />' % self.band.name)
+        self.assertContains(response,
+                            '"source": "%s/admin_widgets/album/autocomplete/band/"' % self.admin_root)
+        self.assertContains(response,
+                            '<input type="hidden" name="form-0-covered_band" value="" id="id_hidden_form-0-covered_band" />')
+        self.assertContains(response,
+                            '<input type="text" id="id_form-0-covered_band" value="" />')
+        self.assertContains(response,
+                            '"source": "%s/admin_widgets/album/autocomplete/covered_band/"' % self.admin_root)
 
 class MultipleAutocompleteWidgetTest(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
         band.album_set.create(
             name='Hybrid Theory', cover_art=r'albums\hybrid_theory.jpg'
         )
+        band.members.create(
+            name="Rob Bourdon"
+        )
         band2 = models.Band.objects.create(name='Johnny Cash')
         band2.album_set.create(
             name='At San Quentin'
         response = self.client.get(lookup_by_id_url % user.email)
         self.assertEqual(simplejson.loads(response.content),
                          expected)
+
+    def test_changelist_formsets(self):
+        band = self.bands[0]
+        self.client.login(username="super", password="secret")
+        response = self.client.get('%s/admin_widgets/band/?ot=asc&o=id' % self.admin_root )
+        self.assertContains(response,
+                            '<input type="hidden" name="form-0-members" value="%s" id="id_hidden_form-0-members" />' % ",".join([str(o.pk) for o in band.members.all()]))
+        self.assertContains(response,
+                            '<input type="text" id="id_form-0-members" value="" />')
+        self.assertContains(response,
+                            '"source": "%s/admin_widgets/band/autocomplete/members/"' % self.admin_root)
+        self.assertContains(response,
+                            '<input type="hidden" name="form-0-roadies" value="" id="id_hidden_form-0-roadies" />')
+        self.assertContains(response,
+                            '<input type="text" id="id_form-0-roadies" value="" />')
+        self.assertContains(response,
+                            '"source": "%s/admin_widgets/band/autocomplete/roadies/"' % self.admin_root)
         

tests/regressiontests/admin_widgets/widgetadmin.py

 
 class AlbumAdmin(admin.ModelAdmin):
     autocomplete_fields = {
-        'band': { 'fields': ('name',) }
+        'band': { 'fields': ('name',) },
+        'covered_band': { 'fields': ('name',) }
             }
+    list_display = ('name', 'band', 'covered_band',)
+    list_editable = ('name', 'band', 'covered_band',)
+
+class BandAdmin(admin.ModelAdmin):
+    autocomplete_fields = {
+        'members': { 'fields': ('name',) },
+        'roadies': { 'fields': ('name',) }
+            }
+    list_display = ('name', 'members', 'roadies',)
+    list_editable = ('name', 'members', 'roadies',)
 
 class MemberAdmin(admin.ModelAdmin):
     autocomplete_fields = {
 
 site.register(models.User)
 site.register(models.Album, AlbumAdmin)
+site.register(models.Band, BandAdmin)
 site.register(models.Car, CarAdmin)
 site.register(models.CarTire, CarTireAdmin)
 site.register(models.Event, EventAdmin)