loopbackjs - 获取belongsTo关系中的完整json结构

Question

我正在尝试通过创建 belongsTo 关系在 Loopback 中设置基本模型关系。

我有两个模型定义如下:

合约.json

{
  "name": "Contract",
  "base": "PersistedModel",
  "idInjection": false,
  "options": {
    "validateUpsert": true
  },
  "mssql": {
    "schema": "dbo",
    "table": "Contract"
  },
  "properties": {
    "contractid": {
       // some property stuff
    },
  "validations": [],
  "relations": {
    "employee": {
      "type": "belongsTo",
      "model": "Employee",
      "foreignKey": ""
    }
  },
  "acls": [],
  "methods": []
}

员工.json

{
  "name": "Employee",
  "base": "PersistedModel",
  "idInjection": false,
  "options": {
    "validateUpsert": true
  },
  "mssql": {
    "schema": "dbo",
    "table": "Employee"
  },
  "properties": {
    "employeeid": {
       // some property definitions...
    }
  },
  "validations": [],
  "relations": {
    "contracts": {
      "type": "hasMany",
      "model": "Contract",
      "foreignKey": ""
    }
  },
  "acls": [],
  "methods": []
}

当我对具有特定 id 的 Contract 执行 GET 请求时，我得到结果:

调用:/api/Contracts/55

{
  "contractid": 55,
  "employeeId": 83
}

到目前为止还不错。但是，当我对 Contract 执行 GET 请求时，还获取 Employee 我希望得到如下输出:

调用:/api/Contracts/55/employee

{
  "contractid": 55,
  "employee": {
      "employeeid": 83
  }
}

但相反，我只获取 Employee 对象，而没有其 Contract:

{
    "employeeid": 83
}

这是为什么呢？

我做错了什么吗？还是我的期望有误？

Answer 1

您可以执行/api/Contracts/55?filter[include]=employee

或者:

/api/Contracts/55?filter={"include":"employee"}

您可以通过添加“范围”部分来设置契约(Contract)模型默认范围以包含员工对象:

"scope": {
    "include": "employee"
  }