add unit tests which show m2m creation failing for through table

1 files changed, 28 insertions, 0 deletions

diff --git a/djangorestframework/tests/models.py b/djangorestframework/tests/models.py
new file mode 100644
index 00000000..61da1d45
--- /dev/null
+++ b/djangorestframework/tests/models.py
@@ -0,0 +1,28 @@
+from django.db import models

+from django.contrib.auth.models import Group

+ 

+class CustomUser(models.Model):

+    """

+    A custom user model, which uses a 'through' table for the foreign key

+    """

+    username = models.CharField(max_length=255, unique=True)

+    groups = models.ManyToManyField(

+        to=Group, blank=True, null=True, through='UserGroupMap'

+    ) 

+        

+    @models.permalink

+    def get_absolute_url(self):

+        return ('custom_user', (), {

+            'pk': self.id

+    })        

+             

+        

+class UserGroupMap(models.Model):

+    user = models.ForeignKey(to=CustomUser)

+    group = models.ForeignKey(to=Group)      

+    

+    @models.permalink

+    def get_absolute_url(self):

+        return ('user_group_map', (), {

+            'pk': self.id

+        })            
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