Ember.Js Reflexive Association

Question

我試圖實現「追隨者/追隨者」關係。

應用/模板/ users.hbs ---------------------------

{{#each model as |user|}} 
    ... 
    <button {{action 'follow' user}}>Follow</button> 
{{/each}} 

應用程序/路由/用戶.js ---------------------------

follow(user){ 
    //currentUser is the one clicking on 'follow' button 
    //and it works.I can successfully alert it's properties. 
    currentUser.get('followings').pushObject(user); 
}, 

app/models/user.js ------- ----------------

... 
followings: DS.hasMany('user',{inverse: null}), 
followers: DS.hasMany('user',{inverse: null}), 

現在，此解決方案正在導致下面的錯誤;

Uncaught TypeError: Cannot read the property 'modelName' of undefined at assertPolymorphicType.notifyRecordRelationshipAdded 

Answer 1

試試這個：

followings: DS.hasMany('user', { inverse: 'followers' }, 
followers: DS.hasMany('user', { inverse: 'followings' },