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Backbone JS infinite data with Node JS and Express JS
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| /* | |
| ** Client side - /public/src/app.js | |
| */ | |
| var myApp = { | |
| // Collections | |
| Collections: { | |
| list: Backbone.Collection.extend() | |
| }, | |
| // Views | |
| Views: { | |
| list: Backbone.View.extend({ | |
| el: $('#content'), | |
| events: { | |
| 'click .more': 'more' | |
| }, | |
| initialize: function () { | |
| this.refresh(); | |
| }, | |
| refresh: function () { | |
| var that = this; | |
| this.el.html(''); | |
| this.collection.each(function (model) { | |
| that.el.append(model.attributes.name + '<br/>'); | |
| }); | |
| this.el.append('<button type="button" class="more">More</button>'); | |
| }, | |
| more: function () { | |
| this.$('.more').html('loading...').attr('disabled', 'disabled'); | |
| myApp.routers.list.index(); | |
| } | |
| }) | |
| }, | |
| // Routers | |
| Routers: { | |
| list: Backbone.Router.extend({ | |
| routes: { | |
| '': 'index' | |
| }, | |
| index: function () { | |
| // if collection doesn't exist, create it | |
| if(!myApp.collections.list){ | |
| myApp.collections.list = new myApp.Collections.list; | |
| myApp.collections.list.page = 1; | |
| } | |
| else { | |
| // increment the page | |
| myApp.collections.list.page++; | |
| } | |
| myApp.collections.list.url = '/names/' + myApp.collections.list.page; | |
| myApp.collections.list.fetch({ | |
| add: true, | |
| success: function() { | |
| if (!myApp.views.list) { | |
| myApp.views.list = new myApp.Views.list({ collection: myApp.collections.list }); | |
| } | |
| else { | |
| myApp.views.list.refresh(); | |
| } | |
| }, | |
| error: function() { | |
| new Error({ message: "Error loading documents." }); | |
| } | |
| }); | |
| } | |
| }) | |
| }, | |
| // Instances | |
| collections: {}, | |
| views: {}, | |
| routers: {}, | |
| // Initialize | |
| init: function () { | |
| // init the router (call directly index if there is no route) | |
| this.routers.list = new myApp.Routers.list(); | |
| Backbone.history.start(); | |
| } | |
| }; | |
| myApp.init(); |
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| <!-- | |
| --- Client side - /public/index.html | |
| --> | |
| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Comptatible" content="IE=edge,chrome=1"> | |
| <title>Example of infinite data with Backbone JS</title> | |
| </head> | |
| <body> | |
| <div id="content"></div> | |
| <!-- Thirt-Party Libraries (Order matters) --> | |
| <script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script> | |
| <script type="text/javascript" src="http://documentcloud.github.com/underscore/underscore-min.js"></script> | |
| <script type="text/javascript" src="http://documentcloud.github.com/backbone/backbone-min.js"></script> | |
| <!-- Application core (Order matters) --> | |
| <script type="text/javascript" src="src/app.js"></script> | |
| </body> | |
| </html> |
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| /* | |
| ** Server side - /server.js | |
| ** Start it with node server.js and go to http://localhost:4000/ | |
| **/ | |
| var express = require('express'), | |
| app = express.createServer(); | |
| app.configure(function() { | |
| app.use(express.static(__dirname +'/public/')); | |
| }); | |
| app.get('/names/:page', function (req, res) { | |
| var page = req.params.page; | |
| res.json([ | |
| { name: 'Name '+ (5 * (page - 1) + 1) }, | |
| { name: 'Name '+ (5 * (page - 1) + 2) }, | |
| { name: 'Name '+ (5 * (page - 1) + 3) }, | |
| { name: 'Name '+ (5 * (page - 1) + 4) }, | |
| { name: 'Name '+ (5 * (page - 1) + 5) } | |
| ]); | |
| }); | |
| app.listen(4000); | |
| console.log('Serveur on http://localhost:4000'); |
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