On Wed, 2007-07-04 at 19:15 +0000, cesco wrote: > Hi, > > in django we can chain multiple filter methods like: > > MyModel.objects.filter(field1__exact=value1).filter(field2__exact=value2) > > but I'd like to be able to chain custom filter methods defined by > extending the models.Manager class. > For example: > > MyModel.objects.filter(field1__exact=value1).my_filter(field2) > > In other words I'd like to be able to apply the filter directly to a > queryset and not only to MyModel.objects. > > Do you have any suggestion on how to accomplish that?
Sub-class the QuerySet class and have your model's manager return your subclass as the result of get_query_set() rather than the current QuerySet instance that is returned. Look in django/db/models/manager.py for the default manager behaviour and write something similar for get_query_set(). Regards, Malcolm -- Tolkien is hobbit-forming. http://www.pointy-stick.com/blog/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
