do not acquire 'categories' property

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11570 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFCategory/CategoryTool.py

@@ -743,7 +743,7 @@ class CategoryTool( UniqueObject, Folder, Base ):
       if type(spec) is type('a'):
         spec = [spec]
       # Filter categories
-      if hasattr(context, 'categories'):
+      if hasattr(aq_base(context), 'categories'):
         for category_url in self._getCategoryList(context):
           try:
             index = category_url.index('/')
@@ -1139,7 +1139,7 @@ class CategoryTool( UniqueObject, Folder, Base ):
 
     security.declareProtected( Permissions.AccessContentsInformation, '_getCategoryList' )
     def _getCategoryList(self, context):
-      if hasattr(context, 'categories'):
+      if hasattr(aq_base(context), 'categories'):
         if type(context.categories) == type((1,)):
           result = list(context.categories)
         elif type(context.categories) == type([]):