store the result of _getSortedPreferenceList in a transactional

variable

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38131 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/PreferenceTool.py

@@ -41,6 +41,7 @@ from Products.ERP5Type import Permissions, PropertySheet
 from Products.ERP5Type.Cache import CachingMethod
 from Products.ERP5Type.Utils import convertToUpperCase
 from Products.ERP5Type.Accessor.TypeDefinition import list_types
+from Products.ERP5Type.TransactionalVariable import getTransactionalVariable
 from Products.ERP5Form import _dtmldir
 
 _marker = object()
@@ -225,6 +226,9 @@ class PreferenceTool(BaseTool):
     """ return the most appropriate preferences objects,
         sorted so that the first in the list should be applied first
     """
+    tv = getTransactionalVariable(self)
+    tv_key = 'PreferenceTool._getSortedPreferenceList/%s' % sql_catalog_id
+    if tv.get(tv_key, None) is None:
       prefs = []
       # XXX will also cause problems with Manager (too long)
       # XXX For manager, create a manager specific preference
@@ -247,7 +251,12 @@ class PreferenceTool(BaseTool):
       sys_prefs = [x.getObject() for x in self.searchFolder(portal_type='System Preference', sql_catalog_id=sql_catalog_id) \
                    if x.getObject().getProperty('preference_state', 'broken') in ('enabled', 'global')]
       sys_prefs.sort(key=lambda x: x.getPriority(), reverse=True)
-    return sys_prefs + prefs
+      preference_list = sys_prefs + prefs
+      tv[tv_key] = [x.getRelativeUrl() for x in preference_list]
+    else:
+      portal = self.getPortalObject()
+      preference_list = [portal.restrictedTraverse(x) for x in tv[tv_key]]
+    return preference_list
 
   def _getActivePreferenceByPortalType(self, portal_type):
     enabled_prefs = self._getSortedPreferenceList()