思考模型在單獨的文件中：如何處理循環/循環依賴關係

Question

我試圖遵循示例here，但是沒有運氣。

我在user.js的文件用戶模型：

import thinky from './thinky'; 
let type = thinky.type; 
let User = thinky.createModel('User', { 
    id: type.string(), 
    username: type.string(), 
}); 
export default User; 

let Game = require('./game'); 
User.hasAndBelongsToMany(Game, "games", "id", "id"); 

博弈模型game.js文件：

import thinky from './thinky'; 
let type = thinky.type; 
let Game = thinky.createModel('Game', { 
    id: type.string(), 
    host: type.string() 
}); 

export default Game; 

let User = require('./user'); 
Game.hasAndBelongsToMany(User, "players", "id", "id"); 

當我嘗試導入到test.js文件，在那裏我創建用戶和遊戲的情況下，我得到First argument of hasAndBelongsToMany must be a Model

我試圖把它寫不ES6語法，仍然無法正常工作......

Answer 1

林我舉例來說，如果你將export默認改爲module.exports，一切都應該工作

Answer 2

個

我們需要避免循環引用所以..

user.js的

import thinky from './thinky'; 
let type = thinky.type; 
let User = thinky.createModel('User', { 
    id: type.string(), 
    username: type.string(), 
}); 
export default User; 

game.js

import thinky from './thinky'; 
let type = thinky.type; 
let Game = thinky.createModel('Game', { 
    id: type.string(), 
    host: type.string() 
}); 

export default Game; 

index.js

import User from './user'; 
import Game from './game'; 

Game.hasAndBelongsToMany(User, "players", "id", "id"); 
User.hasAndBelongsToMany(Game, "games", "id", "id"); 

export {User, Game}; 

Answer 3

您也可以嘗試這種加載程序，旨在加載多個模型定義並使其可用於您的應用程序。

https://github.com/mwielbut/thinky-loader