When generating breadcumb list, not always parent object is accessible (for anonymous user).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20973 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_web/SkinTemplateItem/portal_skins/erp5_web/WebSection_getBreadcrumbItemList.xml

@@ -3,11 +3,8 @@
   <record id="1" aka="AAAAAAAAAAE=">
     <pickle>
       <tuple>
-        <tuple>
-          <string>Products.PythonScripts.PythonScript</string>
-          <string>PythonScript</string>
-        </tuple>
-        <none/>
+        <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+        <tuple/>
       </tuple>
     </pickle>
     <pickle>
@@ -135,8 +132,12 @@ while crumb is not None:\n
   if crumb.getPortalType() == \'Web Site\':\n
     crumb = None   # Don\'t go higher than the first Web Site found\n
   else:\n
-    crumb = crumb.aq_parent # Acquisition through context\n
-\n
+    # try accessing parent object (which might not always be possible)\n
+    try:\n
+      crumb = crumb.aq_parent\n
+    except:\n
+      crumb = None\n
+    \n
 crumb_list.reverse()\n
 return crumb_list\n
 </string> </value>

bt5/erp5_web/bt/revision

-627
+628
\ No newline at end of file