loopback在单个请求中保存相关的hasmany模型

Question

我有两个通过hasMany关系相关的模型.

Customer 有很多 CustomerPhones

在创建新内容时Customer,我想将相关内容CustomerPhones作为单个请求的一部分传递.这似乎是一种常见的需求,如果我想要实现的方法是错误的,那么这样做的首选方法是什么？

这是创建客户的URL: POST /api/Customers

上面url的请求将是req.body

{
  "name": "Foo",
  "customerPhones": [
    { "phoneNumber": "8085551234" },
    { "phoneNumber": "8085554567" }
  ]
}

Loopback模型配置:

Customer.json

{
  "name": "Customer",
  "base": "User",
  "properties": {
    "name": {
      "type": "string",
      "required": true
    }
  },
  "relations": {
    "customerPhones": {
      "type": "hasMany",
      "model": "CustomerPhone",
      "foreignKey": ""
    }
  }
}

CustomerPhone.json

{
  "name": "CustomerPhone",
  "base": "PersistedModel",
  "properties": {
    "phoneNumber": {
      "type": "string",
      "required": true
    },
    "customerId": {
      "type": "number",
      "required": true
    }
  },
  "relations": {
    "customer": {
      "type": "belongsTo",
      "model": "Customer",
      "foreignKey": "customerId"
    }
  }
}

Answer 1

如果您使用的是 NoSQL 数据库连接器，那么您可以忽略另一个CustomerPhone模型并将customerPhones属性作为数组添加到Customer模型中。

POST /api/Customers另外，对于 SQL 数据库连接器，您可以创建一个同时执行和的远程方法POST /api/Customers/id/CustomerPhones。对于多个电话号码，您可以迭代req.bodycustomerPhones中的字段并每次执行。POST /api/Customers/id/CustomerPhones