node.js - 如何获取为环回模型中定义的属性定义的描述字段的值

Question

我在环回项目中有以下模型定义：`

{
  "name": "Program",
  "base": "PersistedModel",

  "properties": {
    "sId": {
      "type": "string",
      "required": true,
      "length": 20
    },
    "Category": {
      "type": "string",
      "length": 255,
      "description": "Category"
    },
    "ProgramName": {
      "type": "string",
      "length": 255,
      "description": "Program Name"
    },
    "Program_Status": {
      "type": "string",
      "length": 255,
      "description": "Program Status"
    }
  },
  "validations": [],
  "relations": {
    "account": {
      "type": "belongsTo",
      "model": "Account",
      "foreignKey": "Account__c",
      "primaryKey": "sId"
    },
  },
  "methods": {}
}

`

我想获取在任何其他模型中的字段名称中定义的描述值。无论如何在 loopback 或 express.js 中可以得到它？

Answer 1

这只能通过javascript代码实现。恐怕没有办法json从另一个文件访问文件属性json。

在你的OtherModel.js

module.exports = function(yourOtherModel){
var programProps = yourOtherModel.app.models.Program.properties;

//Your props
var programDescription = programProps.Category.description;
}