WorkflowTool.py: patch the ImmutableId to allow migrating CMF Workflow Tool to ERP5 Workflow Tool.

product/ERP5Type/patches/WorkflowTool.py

@@ -28,7 +28,7 @@ from Products.DCWorkflow.Transitions import TRIGGER_WORKFLOW_METHOD, TransitionD
 
 from Products.CMFCore.utils import getToolByName
 from Products.ZSQLCatalog.SQLCatalog import SimpleQuery, AutoQuery, ComplexQuery, NegatedQuery
-from Products.CMFCore.utils import _getAuthenticatedUser
+from Products.CMFCore.utils import _getAuthenticatedUser, ImmutableId
 from Products.ERP5Type.Cache import CachingMethod
 from sets import ImmutableSet
 from Acquisition import aq_base
@@ -65,6 +65,18 @@ class ExclusionTuple(tuple):
   """
   pass
 
+def ImmutableId_setId(self):
+  """ patch which allows modifying the Id of portal_workflow
+      for the sake of workflow tool migration.
+  """
+  if self.getId() in ['portal_workflow', 'portal_workflow_new']:
+    pass
+  else:
+    if id != self.getId():
+      raise ValueError('Changing the id of this object is forbidden: %s'
+                       % self.getId())
+ImmutableId._setId = ImmutableId_setId
+
 def getValidCriterionDict(worklist_match_dict, sql_catalog,
                           workflow_worklist_key):
   valid_criterion_dict = {}