def wkf_action(action, context={}, reload=true)
      self.class.object_service(:exec_workflow, self.class.openerp_model, action, self.id, context)
      reload_fields if reload
    end
def wkf_action(action, context={}, reload=true)
      self.class.object_service(:exec_workflow, self.class.openerp_model, action, self.id, context)
      reload_fields if reload
    end
wrapper for OpenERP exec_workflow Business Process Management engine