bt5_config: Override accessors for type_workflow_list accroding to need for...

bt5_config: Override accessors for type_workflow_list accroding to need for portal_workflow chain bootstrap

product/ERP5Type/ERP5Type.py

@@ -344,9 +344,16 @@ class ERP5TypeInformation(XMLObject,
       if cbt is not None and cbt.has_key(id):
         workflow_list = list(cbt[id])
       else:
-        workflow_list = ['(Default)',]
+        workflow_list = None
       return workflow_list
 
+    def hasTypeWorkflowList(self):
+      """
+      Always return True. Overriden as general accessor is generated after the
+      use of this function while installing Business Manager
+      """
+      return True
+
     security.declareProtected(Permissions.ModifyPortalContent,
                               'setTypeWorkflowList')
     def _setTypeWorkflowList(self, type_workflow_list):
@@ -355,25 +362,32 @@ class ERP5TypeInformation(XMLObject,
       # installation of Business Manager. This way, we would be able to
       # modify workflow chain without the need of saving anything in
       # type_workflow_list property.
-
-      # If type_workflow_list is '(Default)', don't do/update anything
-      if type_workflow_list[0] != '(Default)':
       portal = self.getPortalObject()
       pw = portal.portal_workflow
       cbt = pw._chains_by_type
       id = self.getId()
 
+      # If the type_workflow_list is empty, delete the key from workflow chains
+      if not type_workflow_list:
+        cbt[id] = []
+        pw._chains_by_type = cbt
+
+      # If type_workflow_list is '(Default)', don't do/update anything
+      elif type_workflow_list[0] != '(Default)':
+
         # If there is already key existing in cbt, then update it
         if cbt is not None and cbt.has_key(id):
-          workflow_list = list(cbt(id))
+          workflow_list = list(cbt[id])
+
+          if not workflow_list:
+            cbt[id] = sorted(type_workflow_list)
 
           # If the value in cbt is '(Default)', then update it only after removing
           # default value
-          if workflow_list[0] != '(Default)':
+          elif workflow_list[0] != '(Default)':
             type_workflow_list = type_workflow_list.extend(workflow_list)
-            cbt[id] = type_workflow_list
-
             cbt[id] = sorted(type_workflow_list)
+
         # Update the chains dictionary for portal_workflow
         pw._chains_by_type = cbt