[1.1.X] Fixed #12561. InlineAdmin now respects can_delete=False. Backport of [12533] from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@12534 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_inlines/models.py

@@ -3,6 +3,7 @@ Testing of admin inline formsets.
 
 """
 from django.db import models
+from django.contrib import admin
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.contenttypes import generic
 
@@ -29,6 +30,24 @@ class Child(models.Model):
     def __unicode__(self):
         return u'I am %s, a child of %s' % (self.name, self.parent)
 
+
+class Holder(models.Model):
+    dummy = models.IntegerField()
+
+
+class Inner(models.Model):
+    dummy = models.IntegerField()
+    holder = models.ForeignKey(Holder)
+
+
+class InnerInline(admin.StackedInline):
+    model = Inner
+    can_delete = False
+
+
+# Test bug #12561
+admin.site.register(Holder, inlines=[InnerInline])
+
 __test__ = {'API_TESTS': """
 
 # Regression test for #9362
@@ -48,4 +67,4 @@ inline form.
 <Child: I am Joe, a child of John>
 
 """
-}
+}