Workflow.py: change the way to execute scrips by calling them directly.

product/ERP5Workflow/Document/Workflow.py

@@ -614,13 +614,13 @@ class Workflow(IdAsReferenceMixin("", "prefix"), XMLObject):
     if tdef is not None and tdef.getBeforeScriptId():
       script_id = tdef.getBeforeScriptId()
       if script_id:
-        script = self._getOb(script_id)
+        script = self._getOb(script_id, None)
         # Pass lots of info to the script in a single parameter.
         kwargs = form_kw
         sci = StateChangeInfo(
               document, self, former_status, tdef, old_sdef, new_sdef, kwargs)
         try:
-          script.execute(sci)  # May throw an exception.
+          script(sci)  # May throw an exception.
         except ValidationFailed, validation_exc:
           before_script_success = 0
           before_script_error_message = deepcopy(validation_exc.msg)
@@ -719,7 +719,7 @@ class Workflow(IdAsReferenceMixin("", "prefix"), XMLObject):
           if script.getTypeInfo().getId() == 'Workflow Script':
             sci = StateChangeInfo(
                 document, self, former_status, tdef, old_sdef, new_sdef, kwargs)
-            script.execute(sci)  # May throw an exception.
+            script(sci)  # May throw an exception.
           else:
             raise NotImplementedError ('Unsupported Script %s for state %s'%(script_id, old_sdef.getReference()))
     # Return the new state object.