debounced search

controllers.application.js

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  queryParams: ['query'],
  query: null,
  
  queryField: Ember.computed.oneWay('query'), 

  watchSearch: function() {
    Ember.run.debounce(this, this.runSearch, 400);
  }.observes('queryField'),

  runSearch: function(){
    this.set('query', this.get('queryField'));
  }
});

Debounced Ember Search

This is a demonstration of how to create a search field in Ember.

Results update 400ms after the user stops typing (for a nicer search experience). That's what the debounce does.

routes.application.js

var words = Ember.String.w("Lorem ipsum dolor sit amet consectetur adipisicing elit Ab illum labore quis ipsam voluptate sunt reprehenderit iure nisi sit ut inventore illo porro Eveniet odio sed corporis distinctio tempore temporibus".toLowerCase());

export default Ember.Route.extend({
  queryParams: {
    query: {
      // Opt into full transition
      refreshModel: true
    }
  },
  
  model: function(params) {
    if (!params.query) {
      return words; // no query;
    }
    
    var regex = new RegExp(params.query.toLowerCase());
    return words.filter(function(word) {
      return regex.exec(word);
    });
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1><br><br>

<h3>Ember Query Params: search</h3>
<form {{action "search" on="submit"}}>
  <label>Search:</label>
  {{input value=queryField}}
</form>

{{#if query}}
  <p>Displaying results for "{{query}}"</p>
{{else}}
  <p>Displaying all words</p>
{{/if}}

<ul>
  {{#each model key="@index" as |result|}}
    <li>{{result}}</li>
  {{/each}} 
</ul>