A stupid patch to partially correct bug #389

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@8610 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ListBox.py

@@ -2062,7 +2062,14 @@ class ListBoxHTMLRenderer(ListBoxRenderer):
 
     # If a specific template is specified, use it.
     method_id = self.field.get_value('page_template')
-    if method_id:
+    if method_id not in (None, ''):
+      try:
+        return aq_base(getattr(self.getContext(), method_id)).__of__(context)
+      except AttributeError:
+        page_template = getattr( context.getPortalObject()
+                               , method_id
+                               )
+        return page_template.__of__(context)
       return aq_base(getattr(self.getContext(), method_id)).__of__(context)
 
     # Otherwise, use the default one.