Workflow.py: use CachinMethod to execute getPortalTypeListForWorkflow; now...

Workflow.py: use CachinMethod to execute getPortalTypeListForWorkflow; now this part keeps indentical to the DCWorkflow.py.

product/ERP5Workflow/Document/Workflow.py

@@ -50,6 +50,7 @@ from Products.DCWorkflow.utils import Message as _
 from Products.DCWorkflow.utils import modifyRolesForPermission
 from Products.DCWorkflow.DCWorkflow import DCWorkflowDefinition as DCWorkflow
 from Products.ERP5Type import Permissions, PropertySheet
+from Products.ERP5Type.Cache import CachingMethod
 from Products.ERP5Type.Globals import PersistentMapping
 from Products.ERP5Type.id_as_reference import IdAsReferenceMixin
 from Products.DCWorkflow.Expression import createExprContext
@@ -351,7 +352,9 @@ class Workflow(IdAsReferenceMixin("", "prefix"), XMLObject):
                 append(document.getTypeInfo().getId())
         return result
 
-    portal_type_list = getPortalTypeListForWorkflow(self.id)
+    _getPortalTypeListForWorkflow = CachingMethod(getPortalTypeListForWorkflow,
+                              id='_getPortalTypeListForWorkflow', cache_factory = 'erp5_ui_long')
+    portal_type_list = _getPortalTypeListForWorkflow(self.id)
     if not portal_type_list:
       return None
     variable_match_dict = {}