Improved support for accessing models when using multiple databases

Author: Smurf2-pluto

polymorphic/models.py

@@ -200,7 +200,8 @@ def __init__(self, *args, **kwargs):
         def create_accessor_function_for_model(model, accessor_name):
             def accessor_function(self):
                 objects = getattr(model, "_base_objects", model.objects)
-                attr = objects.get(pk=self.pk)
+                using = kwargs.get("using", self._state.db or DEFAULT_DB_ALIAS)
+                attr = objects.using(using).get(pk=self.pk)
                 return attr
 
             return accessor_function