Remove default 'objects' manager when appending EntityManager.

.gitignore

@@ -6,3 +6,50 @@
 _build
 build
 django_eav.egg-info/*
+env/
+
+# -*- mode: gitignore; -*-
+*~
+\#*\#
+/.emacs.desktop
+/.emacs.desktop.lock
+*.elc
+auto-save-list
+tramp
+.\#*
+
+# Org-mode
+.org-id-locations
+*_archive
+
+# flymake-mode
+*_flymake.*
+
+# eshell files
+/eshell/history
+/eshell/lastdir
+
+# elpa packages
+/elpa/
+
+# reftex files
+*.rel
+
+# AUCTeX auto folder
+/auto/
+
+# cask packages
+.cask/
+dist/
+
+# Flycheck
+flycheck_*.el
+
+# server auth directory
+/server/
+
+# projectiles files
+.projectile
+
+# directory configuration
+.dir-locals.el

eav/registry.py

@@ -119,12 +119,18 @@ class Registry(object):
         '''
         Attach the manager to *manager_attr* specified in *config_cls*
         '''
-        # save the old manager if the attribute name conflict with the new one
+        # Save the old manager if the attribute name conflict with the new one.
         if hasattr(self.model_cls, self.config_cls.manager_attr):
             mgr = getattr(self.model_cls, self.config_cls.manager_attr)
             self.config_cls.old_mgr = mgr
 
-        # attache the new manager to the model
+        # Remove default 'objects' manager.
+        for i, manager in enumerate(self.model_cls._meta.local_managers):
+            if manager.name == 'objects':
+                del self.model_cls._meta.local_managers[i]
+                self.model_cls._meta._expire_cache()
+
+        # Attach the new manager to the model.
         mgr = EntityManager()
         mgr.contribute_to_class(self.model_cls, self.config_cls.manager_attr)