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Backbone.jsでModelによってViewを分ける
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| var App = { | |
| Views: {}, | |
| Models: {}, | |
| Collections: {} | |
| }; | |
| App.Models.Item = Backbone.Model.extend({ | |
| defaults: function() { | |
| return { | |
| viewtype: '', | |
| color: '', | |
| name: '' | |
| }; | |
| } | |
| }); | |
| App.Collections.Items = Backbone.Collection.extend({ | |
| model: App.Models.Item | |
| }); | |
| App.Views.Item = Backbone.View.extend({ | |
| tagName: 'li', | |
| template: _.template('<p>My name is <%= name %>.</p>'), | |
| decorate: function() {}, | |
| prerender: function() { | |
| this.$el.html(this.template(this.model.toJSON())); | |
| this.decorate(); | |
| return this; | |
| } | |
| }); | |
| App.Views.HogeItem = App.Views.Item.extend({ | |
| // override | |
| decorate: function() { | |
| this.$el.css({ | |
| color: '#f00' | |
| }); | |
| }, | |
| render: function() { | |
| this.prerender(); | |
| return this; | |
| } | |
| }); | |
| App.Views.FugaItem = App.Views.Item.extend({ | |
| // override | |
| decorate: function() { | |
| this.$el.css({ | |
| color: '#00f', | |
| fontStyle: 'italic', | |
| }); | |
| }, | |
| render: function() { | |
| this.prerender(); | |
| return this; | |
| } | |
| }); | |
| App.Views.PiyoItem = App.Views.Item.extend({ | |
| // override | |
| decorate: function() { | |
| this.$el.css({ | |
| color: '#0f0', | |
| textDecoration: 'underline' | |
| }); | |
| }, | |
| render: function() { | |
| this.prerender(); | |
| return this; | |
| } | |
| }); | |
| App.Views.Items = Backbone.View.extend({ | |
| tagName: 'ul', | |
| getDom: function(view) { | |
| return view.el; | |
| }, | |
| renderView: function(model) { | |
| var type = model.get('viewtype'); | |
| return new App.Views[type]({ model: model }).render(); | |
| }, | |
| render: function() { | |
| var views = this.collection.map(this.renderView, this); | |
| var dom = _.map(views, this.getDom, this); | |
| this.$el.html(dom); | |
| return this; | |
| } | |
| }); | |
| App.Views.App = Backbone.View.extend({ | |
| initialize: function() { | |
| this.items = new App.Views.Items({ | |
| collection: new App.Collections.Items([ | |
| { viewtype: 'HogeItem', name: 'ほげ' }, | |
| { viewtype: 'FugaItem', name: 'ふが' }, | |
| { viewtype: 'PiyoItem', name: 'ぴよ' } | |
| ]) | |
| }); | |
| }, | |
| render: function() { | |
| this.$el.append( this.items.render().el ); | |
| return this; | |
| } | |
| }); | |
| $(function() { | |
| var app = new App.Views.App({ el: '#sample' }); | |
| app.render(); | |
| }); |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title></title> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.1/underscore-min.js"></script> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.0.0/backbone-min.js"></script> | |
| <script src="app.js"></script> | |
| </head> | |
| <body> | |
| <div id="sample"></div> | |
| </body> | |
| </html> |
Author
foo9
commented
Aug 4, 2013
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