an even is it own's explanation

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20333 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Event.py

@@ -92,3 +92,24 @@ class Event(EmailDocument, Movement):
       """
       # Provide opportunity to script this
       return 1.
+
+    security.declareProtected(Permissions.AccessContentsInformation,
+                              'getExplanation')
+    def getExplanation(self):
+      """An event is it's own explanation
+      """
+      return self.getRelativeUrl()
+
+    security.declareProtected(Permissions.AccessContentsInformation,
+                              'getExplanationUid')
+    def getExplanationUid(self):
+      """An event is it's own explanation
+      """
+      return self.getUid()
+
+    security.declareProtected(Permissions.AccessContentsInformation,
+                               'getExplanationValue')
+    def getExplanationValue(self):
+      """An event is it's own explanation
+      """
+      return self