将属性从嵌套模型映射到extjs表单视图

I have a JSON like:

我有一个JSON,如:

{
 "id": "d258832c-c454-4961-9013-40ab222930d9",
 "name": "CDS_BU",
 "description": null,
 "parentId": null,
 "group": {
   "id": "ef01eb78-2ae0-43ed-844e-57a825b046eb",
   "name": "GroupForCDSBU2"
 }
}
{
 "id": "d