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编辑：问题的jsbin。请参阅 IndexController 的 testAddTom 操作方法中的注释。

我有一个控制器，可以将模型对象添加到我的应用程序中的另一个 ArrayController。但是，当我在 ArrayController 上调用 pushObject 时，会引发错误...

未捕获的类型错误：无法调用未定义的 ember-data-latest.js:2769 DS.Store.Ember.Object.extend.materializeRecord ember-data-latest.js:2769 DS.Store.Ember.Object.extend 的方法“_create”。 recordForReference ember-data-latest.js:1871 DS.RecordArray.Ember.ArrayProxy.extend.objectAtContent ember-data-latest.js:309 superWrapper ember.js:1044 Ember.ArrayProxy.Ember.Object.extend.objectAt ember.js :11475 superWrapper ember.js:1044 Ember.ArrayController.Ember.ArrayProxy.extend.objectAtContent ember.js:13111 superWrapper ember.js:1044 Ember.ArrayProxy.Ember.Object.extend.objectAt ember.js:11475 superWrapper ember.js :1044 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8955 Ember.ArrayController.Ember.ArrayProxy.extend.arrayContentDidChange ember.js:13147 superWrapper ember.js:1044 Ember.ArrayProxy。Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.ArrayProxy.Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember。 ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObject安排ContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.ArrayProxy.Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember。 Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object。 extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObject安排ContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.ArrayProxy.Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember。 Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object。 extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObjectArray.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.ArrayProxy.Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js :8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy。 Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember。 Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObjectArray.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.ArrayProxy.Ember.Object.extend.arrangedContentArrayDidChange ember.js:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js :8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy。 Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember。 Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObjectjs:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember. js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js: 11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObjectjs:11582 sendEvent ember.js:2432 Ember.Array.Ember.Mixin.create.arrayContentDidChange ember.js:8946 Ember.Mixin.create.replace ember.js:12016 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember. js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js: 11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember.ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObject11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember .ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObject11487 Ember.ArrayProxy.Ember.Object.extend.replace ember.js:11493 Ember.ArrayProxy.Ember.Object.extend.replaceContent ember.js:11371 Ember.ArrayProxy.Ember.Object.extend._replace ember.js:11487 Ember .ArrayProxy.Ember.Object.extend._insertAt ember.js:11501 Ember.ArrayProxy.Ember.Object.extend.pushObject

模型对象不是新的，它早先已经获取了。如果我改为获取 ArrayController 内容，将其转换为数组，将对象推送到数组，然后重新设置 ArrayController.content 它可以正常工作。

我的问题是为什么 pushObject 不起作用？这似乎是正确的做法。

pushObject 代码示例破坏了...

App.TaskController.reopen({
    needs: ['reminder'],

    showReminderForTask: function(reminder) {
        var reminders = this.get('controllers.reminders');

        if (!reminders.content.contains(reminder)) {
            reminders.pushObject(reminder);
        }
    }
});

有效的 ArrayController.content 示例....

App.TaskController.reopen({
    needs: ['reminder'],

    showReminderForTask: function(reminder) {
        var reminders = this.get('controllers.reminders');

        if (!reminders.content.contains(reminder)) {
            var content = reminders.content.toArray();
            content.push(reminder);
            reminders.set('content', content);
        }
    }
});
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1 回答 1

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我猜你的问题是你试图pushObject在控制器本身上使用它不会自动将推送的对象转发到content控制器的属性，因此它会中断。

你应该这样做：

App.TaskController.reopen({
  needs: ['reminder'],

  showReminderForTask: function(reminder) {
    var remindersContent = this.get('controllers.reminders.content');

    if (!remindersContent.contains(reminder)) {
        remindersContent.pushObject(reminder);
    }
  }
});

我整理了一个jsbin，显示pushObject在content属性上使用应该可以按预期工作。

希望能帮助到你

于 2013-05-27T22:44:55.530 回答