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
11844	Select_related() and defer()	krylatij	nobody	"Invalid field values when you use select_related() and defer().
See sample below.
May be it clashes with ticket #11606

#models.py


{{{
class Author(models.Model):
    name = models.CharField(max_length=20, default='author')
    text1 = models.CharField(default='text1', max_length=10)
    text2 = models.CharField(default='text2', max_length=10)
    
    def __unicode__(self):
        return u'%s' % self.name
     
class Work(models.Model):
    name = models.CharField(max_length=20, default='work')
    author = models.ForeignKey(Author)   
    
    def __unicode__(self):
        return u'%s' % self.name
}}}


#manage.py shell

{{{
from test.myapp.models import *
a = Author()
a.save()
w = Work()
w.author = a
w.save()
w = Work.objects.filter(id=1).select_related('author').defer('author__text1')[0]
print w.author.text1
>> u'text2'  !!! ERROR

}}}


"		closed	Database layer (models, ORM)	1.1		duplicate	selected_related,defer		Unreviewed	0	0	0	0	0	0