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Live collection example in Ember
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> | |
| <title>Collection Example</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| </head> | |
| <body> | |
| <!-- Updated template to use #each, which should be easier to understand --> | |
| <script type="text/x-handlebars"> | |
| <ul class="tweets"> | |
| {{#each Twitter.searchResults}} | |
| <li class="tweet">{{text}}</li> | |
| {{/each}} | |
| </ul> | |
| </script> | |
| <script src="js/libs/jquery-1.6.1.min.js"></script> | |
| <script src="js/libs/ember-0.9.2.js"></script> | |
| <script> | |
| // Namespace | |
| Twitter = Em.Application.create({ | |
| ready: function() { | |
| // Polling | |
| setInterval(function() { | |
| Twitter.searchResults.refresh(); | |
| }, 2000); | |
| Twitter.searchResults.set("query", "cats"); | |
| // | |
| // Need to call _super() so event delegation is setup. | |
| // | |
| this._super(); | |
| } | |
| }); | |
| // Model | |
| Twitter.Tweet = Em.Object.extend(); | |
| // Collection | |
| // Changed ArrayProxy to ArrayController which IMO is a friendlier name. | |
| Twitter.searchResults = Em.ArrayController.create({ | |
| content: [], | |
| query: null, | |
| _idCache: {}, | |
| addTweet: function(tweet) { | |
| var id = tweet.get("id"); | |
| if (typeof this._idCache[id] === "undefined") { | |
| this.pushObject(tweet); | |
| this._idCache[id] = tweet.id; | |
| } | |
| }, | |
| refresh: function() { | |
| var query = this.get("query"); | |
| if (Em.empty(query)) { | |
| this.set("content", []); | |
| return; | |
| } | |
| var self = this; | |
| $.getJSON("http://search.twitter.com/search.json?q=" + query + "&callback=?", function(data) { | |
| for (var i = 0; i < data.results.length; i++) { | |
| self.addTweet(Twitter.Tweet.create(data.results[i])); | |
| } | |
| }); | |
| }.observes("query") | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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