An attribute for related_name is not created for many-to-many relationships on "self"
|Reported by:||Owned by:||nobody|
|Component:||Database layer (models, ORM)||Version:||1.3|
|Severity:||Normal||Keywords:||many-to-many many to many reverse lookup relationship related_name related name recursive self|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
When a ManyToMany relationship named "a1" is specified on "self" with a related_name="a2", an attribute named "a2" is NOT created on the object and reverse relationships are updated in related objects' "a1" attribute.
Code to demonstrate:
class Container(models.Model): contains = models.ManyToManyField("self", related_name="contained_in") (Interactive Console) >>> a, b = Container(), Container() >>> a.save() >>> b.save() >>> a.contains.add(b) >>> a.contains.all() [b] >>> b.contains.all() [a] >>> b.contained_in Traceback (most recent call last): File "<console>", line 1, in <module> AttributeError: 'Container' object has no attribute 'contained_in'