var parentId = (parentInfo && parentInfo.parentId)||this.parentId||'';
var parent = (parentInfo && parentInfo.parent)|| dojox.rpc._index[this.service.serviceName + '/' + parentId]||[];
if(!parent._id){
parent._id = this.service.serviceName + '/' + parentId;
this._setDirty(parent); // set it dirty so it will be post}return parent;