我目前正在学习 Backbone 并尝试构建我的第一个应用程序。作为学习工具,我正在尝试按用户 ID 呈现 Vimeo 画廊。
我将所有内容放在一起,并且我的视图正在正确记录,但它不会呈现到页面。我已经尝试解决这个问题好几个小时了,但我不确定我哪里出错了。非常感谢任何见解。我的方法正确吗?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Backbone App</title>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.1/underscore-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/backbone.js/1.0.0/backbone-min.js"></script>
</head>
<body>
<div id="video-container">
<script type="text/template" id="video_template">
<h1><%= video_title %></h1>
</script>
</div>
<script>
(function($){
var vimeoUser = 9836759;
var Video = Backbone.Model.extend({});
var VideoCollection = Backbone.Collection.extend({
model: Video
});
var VideoView = Backbone.View.extend({
tagName: 'li',
initialize: function(){
_.bindAll(this, 'render');
this.render();
},
render: function(){
var variables = {video_title: this.model.attributes.title};
var template = _.template($('#video_template').html(), variables);
// Logging element works
console.log(template);
// Rendering does not work
this.$el.html( template );
}
});
var GalleryView = Backbone.View.extend({
tagName: 'ul',
initialize: function(){
this.render();
},
render: function(){
this.collection.each(function(video){
var videoView = new VideoView({ model: video});
}, this);
}
});
// Create instance of VideoCollection
var VideoGallery = new VideoCollection;
$.ajax({
url: 'http://vimeo.com/api/v2/' + vimeoUser + '/videos.json',
dataType: 'jsonp',
success: function(response) {
// map api results to our collection
var videos = _.map(response, function(video) {
return {
title: video.title,
details: video.description,
thumbnail_large: video.thumbnail_large,
video: 'http://player.vimeo.com/video/' + video.id + '?api=1&player_id=vimeo-player&autoplay=1'
}
});
// add vimeo videos to collection
VideoGallery.add(videos);
var galleryView = new GalleryView({ el: $('#video-container'), collection: VideoGallery });
}
});
})(jQuery);
</script>
</body>
</html>