我是骨干和handlebars.js的新手。我正在尝试以编程方式将新Item添加到集合中,我希望使用Render渲染集合。
我做错了什么?
var Item = Backbone.Model.extend({
defaults: {
}
});
var List = Backbone.Collection.extend({
model: Item
});
var ListView = Backbone.View.extend({
el: $('BODY'), // el attaches to existing element
initialize: function () {
_.bindAll(this, 'render'); // every function that uses 'this' as the current object should be in here
this.collection = new List();
this.render();
},
render: function () {
var template = Handlebars.compile($('#screenshot_template').html());
$(this.el).html(template({
row: this.collection
}));
return this;
}
});
var listView = new ListView();
window.screenshots = listView;
window.screenshots.collection.add({
myurl: 'http://placehold.it/350x150'
});
我的车把模板如下:
<script id="screenshot_template" type="text/x-handlebars-template">
{{#each row}}
<div><img src="{{this.myurl}}"></div>
{{/each }}
</script>
答案 0 :(得分:2)
为视图添加一个侦听器,以便它知道集合何时触发add事件 - 通常在视图的initialize函数中完成:
this.collection.on('add', this.render);
显然,您需要在实例化集合后添加它。