Fixed #11369 -- Corrected verbose_name_plural model Meta option to be consistent…

Fixed #11369 -- Corrected verbose_name_plural model Meta option to be consistent with verbose_name when using abstract model inheritance. Thanks Beetle_B for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14588 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/options.py

@@ -19,7 +19,7 @@ except NameError:
 # Calculate the verbose_name by converting from InitialCaps to "lowercase with spaces".
 get_verbose_name = lambda class_name: re.sub('(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', ' \\1', class_name).lower().strip()
 
-DEFAULT_NAMES = ('verbose_name', 'db_table', 'ordering',
+DEFAULT_NAMES = ('verbose_name', 'verbose_name_plural', 'db_table', 'ordering',
                  'unique_together', 'permissions', 'get_latest_by',
                  'order_with_respect_to', 'app_label', 'db_tablespace',
                  'abstract', 'managed', 'proxy', 'auto_created')
@@ -91,7 +91,8 @@ class Options(object):
 
             # verbose_name_plural is a special case because it uses a 's'
             # by default.
-            self.verbose_name_plural = meta_attrs.pop('verbose_name_plural', string_concat(self.verbose_name, 's'))
+            if self.verbose_name_plural is None:
+                self.verbose_name_plural = string_concat(self.verbose_name, 's')
 
             # Any leftover attributes must be invalid.
             if meta_attrs != {}:

tests/regressiontests/model_inheritance_regress/models.py

@@ -103,6 +103,20 @@ class DerivedM(BaseM):
         return "PK = %d, base_name = %s, derived_name = %s" \
                 % (self.customPK, self.base_name, self.derived_name)
 
+class AuditBase(models.Model):
+    planned_date = models.DateField()
+
+    class Meta:
+        abstract = True
+        verbose_name_plural = u'Audits'
+
+class CertificationAudit(AuditBase):
+    class Meta(AuditBase.Meta):
+        abstract = True
+
+class InternalCertificationAudit(CertificationAudit):
+    auditing_dept = models.CharField(max_length=20)
+
 # Check that abstract classes don't get m2m tables autocreated.
 class Person(models.Model):
     name = models.CharField(max_length=100)

tests/regressiontests/model_inheritance_regress/tests.py

@@ -8,7 +8,7 @@ from regressiontests.model_inheritance_regress.models import (
     Place, Restaurant, ItalianRestaurant, ParkingLot, ParkingLot2,
     ParkingLot3, Supplier, Wholesaler, Child, SelfRefChild, ArticleWithAuthor,
     M2MChild, QualityControl, DerivedM, Person, BirthdayParty, BachelorParty,
-    MessyBachelorParty)
+    MessyBachelorParty, InternalCertificationAudit)
 
 class ModelInheritanceTest(TestCase):
     def test_model_inheritance(self):
@@ -353,3 +353,14 @@ class ModelInheritanceTest(TestCase):
 
         parties = list(p4.bachelorparty_set.all())
         self.assertEqual(parties, [bachelor, messy_parent])
+
+    def test_11369(self):
+        """verbose_name_plural correctly inherited from ABC if inheritance chain includes an abstract model."""
+        # Regression test for #11369: verbose_name_plural should be inherited
+        # from an ABC even when there are one or more intermediate
+        # abstract models in the inheritance chain, for consistency with
+        # verbose_name.
+        self.assertEquals(
+                InternalCertificationAudit._meta.verbose_name_plural,
+                u'Audits'
+        )