javascript - Ember.js setupController 仅触发一次

Question

假设我有一个观点:

CellarRails.SearchTextField = Ember.TextField.extend({
  templatename: 'index',
  insertNewline: function(){
    this.get('controller').set('query', this.get('value'));

    // calling search method of application controller
    this.get('controller').send('search');
    this.set('value', '');
  }
});

还有一个applicationController:

CellarRails.ApplicationController = Ember.Controller.extend({
  needs: ['search'],
  query: '',

  // here is the search method
  search: function() {

    // I'm using ember-query lib, which provides this helper, it acts just like usual transitionToRoute
    this.transitionToRouteWithParams('search', {
      q: this.get('computedQuery')
    });
  },
  computedQuery: function() {
    this.get('controllers.search').set('q', this.get('query'));
    return this.get('query');
  }.property('query')
});

所以现在应该转换为searchRoute:

CellarRails.SearchRoute = Ember.Route.extend({
  serializeParams: function(controller) {
    return {
      q: controller.get('q')
    };
  },
  deserializeParams: function(params, controller) {
    controller.set('q', params.q);
  },

  // pass CellarRails.Track model to SearchController's context
  setupController: function(controller, context, params) {
    console.log('setup controller hooked!');
    controller.set('context', CellarRails.Track.find(params));
  }
});

在CellarRails.Track模型中，我重新定义了find方法。问题:此代码有效，但 setupController Hook 仅在第一次触发(当我从 applicationRoute 转换到 searchRoute 时>)，但是如果我已经在 searchRoute 中，这个钩子(Hook)不会触发并且 CellarRails.Track 的 find 方法模型也不会启动。

Answer 1

当您在路线上设置 setupController 时，不会调用 model Hook 。如果您希望同时触发 model 和 setupController 钩子(Hook)，则必须在 setupController 中调用 this._super(...) Hook 来维护 model Hook 默认行为:

CellarRails.SearchRoute = Ember.Route.extend({
  ...
  model: function(params) {
    return CellarRails.MyModel.find();
  },
  setupController: function(controller, model) {
    this._super(controller, model);
    ...
  }
  ...
});

希望有帮助。