使用动态生成的对象数组填充ember-power-select时，无法在Array.toString（本地）将对象转换为原始值

Question

我需要用商店中的对象填充电源选择，但是我只能使用硬编码数组myOptions显示选项。 我试图动态生成myOption2 ，并且显然得到了与myOptions相同的输出，但是它抛出错误：

ember.debug.js:19845 Uncaught TypeError: Cannot convert object to primitive value
at Array.toString (native)
at Object.addListener (http://localhost:4200/assets/vendor.js:30682:88)
at Object.addObserver (http://localhost:4200/assets/vendor.js:34026:23)
at Array.addObserver (http://localhost:4200/assets/vendor.js:47679:27)
at Class.updateOptions (http://localhost:4200/assets/vendor.js:88968:17)
at invoke (http://localhost:4200/assets/vendor.js:11825:16)
at Queue.flush (http://localhost:4200/assets/vendor.js:11891:11)
at DeferredActionQueues.flush (http://localhost:4200/assets/vendor.js:11699:17)
at Backburner.end (http://localhost:4200/assets/vendor.js:11013:25)
at Backburner.run (http://localhost:4200/assets/vendor.js:11135:18)

---

function addListener(obj, eventName, target, method, once) {
_emberMetalDebug.assert('You must pass at least an object and event name to Ember.addListener', !!obj && !!eventName);
_emberMetalDebug.deprecate('didInitAttrs called in ' + (obj && obj.toString && obj.toString()) + '.', eventName !== 'didInitAttrs', {
  id: 'ember-views.did-init-attrs',
  until: '3.0.0',
  url: 'http://emberjs.com/deprecations/v2.x#toc_ember-component-didinitattrs'
});

---

//template.hbs

{{#power-select options=myOptions onchange=(action "foo") as |opt|}}
  {{opt.name}}
{{/power-select}}

//component.js

myOptions: [
  { name: 'First Option' },
  { name: 'Second Option' }
],

myOptions2: [],

didReceiveAttrs() {
  this.get('model.content').forEach((option) => {
    this.get('myOptions2').push(option._data);
  });
}


//#=> myOptions: [{name: 'First Option'},{"name":"Second Option"}]
//#=> myOptions2 [{name: 'First Option'},{"name":"Second Option"}]

---

提前致谢！

Answer 1

而不是push你需要使用pushObject ，只有观测，计算性能将火和模板将自动更新。

this.get('myOptions2').pushObject(option._data)

话虽如此，我不确定这是否可以解决您的问题。