1 files changed, 4 insertions, 1 deletions
diff --git a/tests/regressiontests/modeladmin/models.py b/tests/regressiontests/modeladmin/models.py
index 20dfe2ce98..cb2e3d1b0b 100644
--- a/tests/regressiontests/modeladmin/models.py
+++ b/tests/regressiontests/modeladmin/models.py
@@ -8,7 +8,7 @@ class Band(models.Model):
     name = models.CharField(max_length=100)
     bio = models.TextField()
     sign_date = models.DateField()
-    
+
     def __unicode__(self):
         return self.name
 
@@ -32,5 +32,8 @@ class ValidationTestModel(models.Model):
     pub_date = models.DateTimeField()
     band = models.ForeignKey(Band)
 
+    def decade_published_in(self):
+        return self.pub_date.strftime('%Y')[:3] + "0's"
+
 class ValidationTestInlineModel(models.Model):
     parent = models.ForeignKey(ValidationTestModel)