Use boolean values instead of integers.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19266 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFActivity/ActivityTool.py

@@ -687,8 +687,8 @@ class ActivityTool (Folder, UniqueObject):
         obj = self
       for activity in activity_dict.itervalues():
         if activity.hasActivity(aq_inner(self), obj, **kw):
-          return 1
-      return 0
+          return True
+      return False
 
     def getActivityBuffer(self, create_if_not_found=True):
       """