环回使用关系的远程方法答案

【问题标题】：Loopback use a relation's remote method环回使用关系的远程方法
【发布时间】：2016-07-12 14:47:10
【问题描述】：

我在我的项目中使用环回，并且我有一个与 SellerRequests 模型相关的 MyUser 模型（hasMany）。

我看到我现在可以在 /api/MyUsers/:id/sellerRequests 上进行 POST 以创建链接到用户的新 SellerRequest 但我想做的是在我的 common/my-user 中使用此远程方法.js 文件。

我尝试执行 MyUser.__create__sellerRequests 但这未定义（MyUser.prototype.__create__sellerRequests 和 MyUser.createSellerRequests 也是如此）。知道如何访问远程方法吗？

谢谢！

// here is my common/my-user.js file
module.exports = function(Myuser) { 
    console.log(Myuser.__create__sellerRequests); // This is undefined
}

// Here is my MyUser.json
{


"name": "MyUser",
  "base": "User",
  "strict": false,
  "idInjection": false,
  "options": {
    "validateUpsert": true
  },
  "properties": {
    "firstname": {
      "type": "string"
    },
    "lastname": {
      "type": "string"
    },
    "gender": {
      "type": "number"
    },
    "birthday": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "description": {
      "type": "string"
    },
    "spokenLanguages": {
      "type": "string"
    },
    "phoneNumber": {
      "type": "string"
    },
    "createdAt": {
      "type": "date",
      "defaultfn": "now"
    }
  },
  "validations": [],
  "relations": {
    "sellers": {
      "type": "hasMany",
      "model": "Seller",
      "foreignKey": "customer_id"
    },
    "sellerRequests": {
      "type": "hasMany",
      "model": "SellerRequest",
      "foreignKey": "customer_id"
    }
  },
  "acls": [
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "patchAttributes"
    },
    {
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "ALLOW",
      "property": "avatar"
    },
    {
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "ALLOW",
      "property": "defaultAvatar"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "avatarUpload"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "avatarDelete"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "__create__sellerRequests"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "__destroyById__sellerRequests"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "__get__sellerRequests"
    },
    {
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "__findById__sellerRequests"
    }
  ],
  "methods": {}
}

【问题讨论】：

你的 MyUser.json 是什么？

标签： javascript node.js loopbackjs strongloop

【解决方案1】：

获取用户实例并使用它

<user instance>.sellerRequests.create(data, function(error, result) {

});

其中 data 是包含 SellerRequest 模型的字段和值的对象。

或者使用这个

MyUser.sellerRequests({customer_id: <user_id>, <rest of the fields in seller requests>}, function(error, result) {

});

参考：Methods available to the model。

【讨论】：