edit business link documents from the graph data

bt5/erp5_graph_editor/WorkflowTemplateItem/portal_workflow/business_process_graph_editor_interaction_workflow/scripts/afterEdit.xml

@@ -56,23 +56,29 @@ graph = business_process.getProperty(\'jsplumb_graph\')\n
 \n
 \n
 if graph:\n
+  portal = business_process.getPortalObject()\n
   trade_state_dict = dict(start=None, end=None)\n
-  for trade_state in business_process.getPortalObject().portal_categories.trade_state.getCategoryChildValueList():\n
+  for trade_state in portal.portal_categories.trade_state.getCategoryChildValueList():\n
     # XXX I hope no duplicates\n
     trade_state_dict[trade_state.getReference() or trade_state.getId()] = trade_state\n
 \n
   graph = json.loads(graph)[\'graph\']\n
-\n
   for edge_data in graph[\'edge\'].values():\n
     # Create the business link if it does not exist yet.\n
     if not edge_data.get(\'business_link_url\'):\n
-      business_process.newContent(\n
+      business_link = business_process.newContent(\n
         portal_type=\'Business Link\',\n
         predecessor_value=trade_state_dict[edge_data[\'source\']],\n
         successor_value=trade_state_dict[edge_data[\'destination\']],\n
-        title=edge_data.get(\'name\'),\n
-        trade_phase=edge_data.get(\'trade_phase\'),\n
       )\n
+    else:\n
+  # XXX Zope does not like to traverse unicode ...\n
+      business_link = portal.restrictedTraverse(str(edge_data[\'business_link_url\']))\n
+    business_link.edit(\n
+        title=edge_data.get(\'name\'),\n
+  # XXX Zope does not like to traverse unicode ...\n
+        trade_phase=str(edge_data.get(\'trade_phase\', \'\')),\n
+    )\n
 </string> </value>
         </item>
         <item>