On Tuesday, January 25, 2011 3:34:03 PM UTC, kmpm wrote: > > I have some issues with getting hold of the instance of a Model to which a > RelatedManager got contributed to. > Is that at all possible and if so, how? > > From *my_method* below I can get hold of the model *RelatedStuff* by > calling self.model but that really doesn't get me there. > > class MainStuff(models.Model): > .... > > class RelatedStuff(models.Model): > ... > main = models.ForeignKey(MainStuff) > objects = CustomManager() > > class CustomManager(models.Manager): > use_for_related_fields=True > > def my_method(self): > #here I would like to access the instance of MainStuff to which > this got contributed > > > Interesting question. Unfortunately, looking at the code, it doesn't seem like you can. Django creates a new RelatedManager class every time, but it does this via a closure - and the instance is only accessible within the closure.
There are probably good reasons why it's done that way (I suspect passing the instance as a parameter and making it available as an attribute would cause a persistent reference to be kept, which would mean that the instance would never be garbage-collected). -- DR. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
