id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
7149	Multiple OneToOne Models __really__ changed/Broke in Refactor	bo <bo.blanton@…>	nobody	"It now appears that only ONE one-to-one Sub table is allowed for Models ... this, well, i imagine will break lots of other folks things  for example

{{{
# a simple 2 One-To-One tables models
from django.db import models

class BaseMoo(models.Model):
	name = models.CharField(max_length = 50)
	is_moo = models.BooleanField(default = True)

class MooOne(models.Model):
	basemoo = models.OneToOneField(BaseMoo, primary_key = True)
	is_moo_one = models.BooleanField(default = True)

class MooTwo(models.Model):
	basemoo = models.OneToOneField(BaseMoo, primary_key = True)
	is_moo_two = models.BooleanField(default = True)

}}}

and run a little run the test

{{{


	b_moo = BaseMoo(name = ""I Am Foo"", is_moo = True)
	b_moo.save()
	
	MooOne(basemoo = b_moo, is_moo_one = True).save()
	MooTwo(basemoo = b_moo, is_moo_two = False).save()
	
	m_moo = BaseMoo.objects.get(name = ""I Am Foo"")
	try:
		print m_moo
		print repr(m_moo.mooone)
		print repr(m_moo.mootwo)
		print ""\nMOO One"", m_moo.mooone.is_moo_one,
		print ""\nMOO Two"", m_moo.mootwo.is_moo_two,
	except Exception, e:
		print ""\nGADS!"", e
	finally:
		m_moo.delete()




}}}

the scary output form that little test

{{{

BaseMoo object
<MooOne: MooOne object>
<MooOne: MooOne object>

MOO One 1 
MOO Two 
GADS! 'MooOne' object has no attribute 'is_moo_two'

}}}
As one can see the Attribute 'mootwo' is really pointing to 'mooone'.
It would be one thing if 'mootwo' as an attribute tossed an Attribute Error, but to point it at 'mooone' is really scary.
If this in fact the 'desired' effect now for OneToOnes, then really there needs to be some way (shown in the Documentation somewhere) to allow multiple OneToOnes to live on a given table .. 


"		closed	Core (Other)	dev		duplicate	OneToOneField Refactor #7173		Unreviewed	0	0	0	0	0	0