Question

我处理MySQL DB的应用程序链接。我有不同的模型，我想在另一个model.js中使用模型。

例如我有2个模型：

Server.json

 {
  "name": "server",
  "base": "PersistedModel",
  "idInjection": false,
  "properties": {
    "idserver": {
      "type": "number",
      "id": true
    },
    "Name": {
      "type": "string"
    },
    "type": {
      "type": "string"
    },
    "cpus": {
      "type": "number"
    },
    "memory": {
      "type": "number"
    },
    "storage": {
      "type": "number"
    },
    "hypervisor": {
      "type": "number"
    },
    "iddatastore": {
      "type": "number"
    },
    "comment": {
      "type": "string"
    }
  },
  "validations": [],
  "relations": {
    "datastores": {
      "type": "hasAndBelongsToMany",
      "model": "Datastore"
    }
  },
  "acls": [],
  "methods": []
}

和Datastore.json

{
  "name": "Datastore",
    "plural":"Datastores",
  "base": "PersistedModel",
  "idInjection": false,
  "properties": {
    "iddatastore": {
      "type": "number",
      "id": true
    },
    "owner": {
      "type": "number"
    },
    "size": {
      "type": "number"
    },
    "type": {
      "type": "string"
    },
    "name": {
      "type": "string"
    }
  },
  "validations": [],
  "relations": {
    "servers": {
      "type": "hasAndBelongsToMany",
      "model": "server"
    }
  },
  "acls": [],
  "methods": []
}

我希望从Server.js中的Datastore获取数据。

我尝试这种方式，但效果不好：

Server.js

var loopback = require('loopback');
var app = module.exports = loopback();

module.exports = function(Server)  {
    Server.on('attached',function(){
       var override = Server.find;

        var Datastore = Server.app.models.Datastore;
        // the problem is here. It seems to return the description of the model when i look for the data

        Server.findById = function(filter,callback){

        var id = arguments[0];
      // this isn't working
        console.log(Datastore.find({where:{"idserver":id}}));

        return override.apply(this, arguments);
        };


       });
};

我知道这有可能以不同的方式，但如果有可能我更喜欢从Datastore获取数据！

对不起我的英语，如果不清楚，你有什么想法吗？

Loïc

Answer 1

尝试var Datastore = loopback.getModel('Datastore');

Loopback在另一个模型中使用了对模型的引用

1 个答案: