python 2.7 - How to make a custom manager work with non-default database in django? -

i want make custom manager models stored in database 'db2' don't have model.objects.using('db2').all(). code models , custom manager

class viewerprofilemanager(models.manager):     def get_query_set(self):     return super(viewerprofilemanager,self).using('db2').get_query_set() # results in recursion error  class viewerprofile(models.model):     name = models.charfield(max_length=32)     count = models.integerfield(blank=true,null=true)      objects = models.manager()     profiles = viewerprofilemanager() -------------  >>> viewerprofile.profiles.all() # maximum recursion depth exceeded error 

what's wrong doing here , how make work?

you can call method on parent (using super()) or appropriate handling of _db attribute on manager(a string containing name of database use). if want return custom queryset class get_query_set method :

class viewerprofilemanager(models.manager):   def get_query_set(self):       qs = customqueryset(self.model)       if self._db not none:       qs = qs.using(self._db)       return qs   or use this:  class viewerprofilemanager(models.manager):   using="db"   def get_query_set(self,request):   return super(viewerprofilemanager,self).queryset(request).using(self.using)  class viewerprofile(models.model): name = models.charfield(max_length=32) count = models.integerfield(blank=true,null=true)  objects = models.manager() profiles = viewerprofilemanager() 

self._db going affected name of database