一个完整的Backbone新手的问题:
我想从JSON子阵列中提取项目并将它们放在我模板上的特定位置。我不确定如何定位这些特定项目。
子代表在下面的代码中表示:它是名为images的两个数组:
(function () {
//JSON object containing gallery content
var galleries = [
{ name: 'Renovations', images: [
'../img/Galleries/01/pic01.jpg',
'../img/Galleries/01/pic02.jpg'
]
},
{ name: 'Kitchens', images: [
'../img/Galleries/01/pic03.jpg',
'../img/Galleries/01/pic04.jpg'
]
}
];
//Gallery Class...this is a Backbone Model
var Gallery = Backbone.Model.extend({
initialize: function(){
console.log('this gallery is up and running');
}
});
//A collection...also a class & the 'C' in MVC in this case
var SingleGallery = Backbone.Collection.extend({
model: Gallery,
parse: function(response){
return response.items;
console.log(response.items);
}
});
//A view...also a class
var GalleryGroup = Backbone.View.extend({
tagName: 'article',
className: 'contact-container',
template: $('#galleryTemplate').html(),
render: function () {
var tmpl = _.template(this.template);
this.$el.html(tmpl(this.model.toJSON()));
return this;
}
});
//Another view...also a class
var GalleryView = Backbone.View.extend({
el: document.getElementById('container'),
initialize: function () {
this.collection = new SingleGallery(galleries);
this.render();
},
render: function () {
var that = this;
_.each(this.collection.models, function (item) {
that.renderGallery(item);
}, this);
},
renderGallery: function (item) {
var galleryView = new GalleryGroup({
model: item
});
this.$el.append(galleryView.render().el);
}
});
var gal1 = new GalleryView();
} ());
到目前为止,我的模板看起来像这样:
<script id="galleryTemplate" type="text/template">
<p><h1><%= name %></h1>
<div><img src='<%= images %>' /></div></p>
</script>
如果我只有一张图片要加载到&lt;%= images%&gt;这部分很简单,但我想构建一个格式良好的JSON对象,并能够找到两个“图像”数组中的每个单独项目。我想认为fetch()是要走的路,但我不确定......有什么想法吗?
提前致谢。 是
答案 0 :(得分:2)
您可以使用下划线的each
方法沿着这些行迭代images
数组:
<% _.each(images, function (image) { %>
<div><img src='<%= image %>' /></div>
<% }); %>