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POIntegrating JSON feed with Backbone JS
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5629972
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5650048
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2011-04-12T03:09:56.443
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<p>I'm currently working on a project where I type a keyword inside an input box and when I click send it hits a PHP server with a link like (localhost/json-status.php?query=<strong>input text</strong>) and it returns whatever is after "query=" in json format. Now I've accomplished this with jQuery and I'm trying to do this again in backbone js.</p> <pre><code>$("#updateStatus").click(function(){ var query = $("#statusBar").val(); var url = "json-status.php" + "?query=" + query; $.getJSON(url,function(json){ $.each(json.posts,function(i,post){ $("#content").append( '<div>'+ '<p>'+post.status+'</p>'+ '</div>' ); }); }); }); </code></pre> <p>I've pretty much ported over what I did in jQuery over to backbone js and it's not working out as expected so far, please let me know if my approach is correct and how I can solve my problem.</p> <p>backbone code:</p> <pre><code>(function ($) { Status = Backbone.Model.extend({ status: null }); StatusList = Backbone.Collection.extend({ initialize: function (models, options) { this.bind("add", options.view.addStatusList); } }); AppView = Backbone.View.extend({ el: $("body"), initialize: function () { this.status = new StatusList( null, { view: this }); }, events: { "click #updateStatus": "getStatus", }, getStatus: function () { var url = "json-status.php" + "?query=" + $("#statusBar").val(); var statusModel; $.getJSON(url,function(json){ $.each(json.posts,function(i,post){ statusModel = new Status({ status: post.status }); this.status.add( statusModel ); }); }); }, addStatusList: function (model) { $("#status").prepend("<div>" + model.get('status') + "</div>"); } }); var appview = new AppView; })(jQuery); </code></pre> <p>PHP server code which returns in json format (this works fine):</p> <pre><code><?php $getQuery = $HTTP_GET_VARS["query"]; $json=' {"posts":[ { "status": "' . $getQuery . '" } ]} '; echo $json; ?> </code></pre> <p>And if you wish to copy/paste what I have so far it's:</p> <pre><code><!DOCTYPE html> <html> <head> <title>JSON Test</title> </head> <body> <input value="What's on your mind?" id="statusBar" /><button id="updateStatus">Update Status</button> <div id="content"> </div> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script src="http://ajax.cdnjs.com/ajax/libs/underscore.js/1.1.4/underscore-min.js"></script> <script src="http://ajax.cdnjs.com/ajax/libs/backbone.js/0.3.3/backbone-min.js"></script> <script type="text/javascript"> $("#statusBar").click(function() { $(this).val(""); }); (function ($) { Status = Backbone.Model.extend({ status: null }); StatusList = Backbone.Collection.extend({ initialize: function (models, options) { this.bind("add", options.view.addStatusList); } }); AppView = Backbone.View.extend({ el: $("body"), initialize: function () { this.status = new StatusList( null, { view: this }); }, events: { "click #updateStatus": "getStatus", }, getStatus: function () { var url = "json-status.php" + "?query=" + $("#statusBar").val(); var statusModel; $.getJSON(url,function(json){ $.each(json.posts,function(i,post){ statusModel = new Status({ status: post.status }); this.status.add( statusModel ); }); }); }, addStatusList: function (model) { $("#status").prepend("<div>" + model.get('status') + "</div>"); } }); var appview = new AppView; })(jQuery); </script> </body> </html> </code></pre> <p>Thank you for your time.</p> <hr> <p>Julien's code.</p> <pre><code>StatusList = Backbone.Collection.extend({ model: Status, value: null, url: function(){ return "json-status.php?query=" + this.value;} }); AppView = Backbone.View.extend({ el: $("body"), initialize: function () { _.bindAll(this, "render");// to solve the this issue this.status = new StatusList( null, { view: this }); this.status.bind("refresh", this.render); }, events: { "click #updateStatus" :"getStatus", }, getStatus: function () { this.status.value = $("#statusBar").val(); this.status.fetch(this.status.value); }, render: function () { var statusEl = $("#status"); this.status.each( function(model) { statusEl.prepend("<div>" + model.get('status') + "</div>"); }); } }); var appview = new AppView; </code></pre> <p>Full HTML (part 2):</p> <pre><code><!DOCTYPE html> <html> <head> <title>JSON Test</title> </head> <body> <input value="What's on your mind?" id="statusBar" /> <button id="updateStatus">Update Status</button> <div id="status"> </div> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script src="http://ajax.cdnjs.com/ajax/libs/underscore.js/1.1.4/underscore-min.js"></script> <script src="http://ajax.cdnjs.com/ajax/libs/backbone.js/0.3.3/backbone-min.js"></script> <script type="text/javascript"> $("#statusBar").click(function() { $(this).val(""); }); Status = Backbone.Model.extend(); StatusList = Backbone.Collection.extend({ model: Status, value: null, url: function(){ return "json-status.php?query=" + this.value;} }); AppView = Backbone.View.extend({ el: $("body"), initialize: function () { _.bindAll(this, "render");// to solve the this issue this.status = new StatusList( null, { view: this }); this.status.bind("refresh", this.render); }, events: { "click #updateStatus" :"getStatus", }, getStatus: function () { this.status.value = $("#statusBar").val(); this.status.fetch(this.status.value); }, render: function () { var statusEl = $("#status"); this.status.each( function(model) { statusEl.prepend("<div>" + model.get('status') + "</div>"); }); } }); var appview = new AppView; </script> </body> </html> </code></pre> <p>And the PHP is still the same from the one originally documented.</p>
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<javascript><jquery><json><backbone.js>
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Integrating JSON feed with Backbone JS
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