[update] 修改remote apps的serializer

apps/perms/models/remote_app_permission.py

@@ -1,9 +1,9 @@
 #  coding: utf-8
 #
-
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
+from common.utils import lazyproperty
 from .base import BasePermission
 
 __all__ = [
@@ -22,3 +22,11 @@ class RemoteAppPermission(BasePermission):
 
     def get_all_remote_apps(self):
         return set(self.remote_apps.all())
+
+    @lazyproperty
+    def remote_apps_amount(self):
+        return self.remote_apps.count()
+
+    @lazyproperty
+    def system_users_amount(self):
+        return self.system_users.count()