想在执行规则里编辑任务标题,怎么判断是不是为空怎么弄?
concat(relationValue('XFJ_Storage_M',getProcessData1(),null,null,'fStorageCode','/IntegratedApp/turnoverApparatus/data'),': ',relationValue('XFJ_Storage_M',getProcessData1(),null,null,'fStorageRemark','/IntegratedApp/turnoverApparatus/data')== null?"":relationValue('XFJ_Storage_M',getProcessData1(),null,null,'fStorageRemark','/IntegratedApp/turnoverApparatus/data'))
就是relationValue('XFJ_Storage_M',getProcessData1(),null,null,'fStorageRemark','/IntegratedApp/turnoverApparatus/data')== null?"":relationValue('XFJ_Storage_M',getProcessData1(),null,null,'fStorageRemark','/IntegratedApp/turnoverApparatus/data')这个要怎么写
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