#14615: ORM works for None values too
-----------------------------+----------------------------------------------
 Reporter:  tonnzor          |       Owner:            
   Status:  new              |   Milestone:  1.3       
Component:  ORM aggregation  |     Version:  1.2       
 Keywords:                   |       Stage:  Unreviewed
Has_patch:  0                |  
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 Let's say we have 2 models (one refer to another):

 {{{
 class User(Model):
     pass

 class MyObject(Model):
     user = ForeignKey(User, null=True, blank=True)
 }}}

 In this case ORM works wrong in this case:
 {{{
 User().myobject_set.all() # that would return all MyObjects that have
 user=None
 }}}

 So None/null value is supposed to be a valid foreign key between objects
 with is obviously not. Only if foreign key is not null - then it should be
 used.

 I use a simple workaround that may be useful for fixing the issue:
 {{{
 User().myobject_set.exclude(user=None).all()
 }}}

-- 
Ticket URL: <http://code.djangoproject.com/ticket/14615>
Django <http://code.djangoproject.com/>
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