我环顾四周,找不到这个问题的答案。我正在尝试使用本地JSON文件,使用Backbone.js加载它并将其渲染到浏览器中的模板。我的文件下载,模板出现,但数据从不填充。有什么想法吗?提前谢谢。
HTML
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>People list</title>
<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<h1>People list</h1>
<hr />
<div class="page"></div>
</div>
<script type="text/template" id="people-template">
<table class="table striped">
<thead>
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Age</th>
<th>Photo</th>
<th>Video</th>
</tr>
</thead>
<tbody>
<% _.each(PersonCollection, function(Person) { %>
<tr>
<td><%= Person.get("firstName") %></td>
<td><%= Person.get("lastName") %></td>
<td><%= Person.get("age") %></td>
<td><%= Person.get("photo") %></td>
<td><%= Person.get("video") %></td>
</tr>
<% }); %>
</tbody>
</table>
</script>
</body>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.2/jquery.min.js" type="text/javascript"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.2/underscore-min.js" type="text/javascript"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/backbone.js/0.9.2/backbone-min.js"></script>
JAVASCRIPT
<script>
// MODEL MODEL MODEL
// MODEL MODEL MODEL
var Person = Backbone.Model;
// COLLECTION COLLECTION COLLECTION
// COLLECTION COLLECTION COLLECTION
var PersonCollection = Backbone.Collection.extend({
model: Person,
url: '/people.json',
parse: function (response) {
return response
}
});
// VIEWS VIEWS VIEWS
// VIEWS VIEWS VIEWS
var About = Backbone.View.extend ({
el: '.page',
render: function () {
var that = this;
var people = new PersonCollection();
people.fetch({
success: function (PersonCollection) {
var template = _.template($('#people-template').html(), {PersonCollection: PersonCollection.models});
that.$el.html(template);
}
})
}
});
var About = new About ();
// ROUTES ROUTES ROUTES
// ROUTES ROUTES ROUTES
var Router = Backbone.Router.extend({
routes: {
'': 'home'
}
});
var router = new Router();
router.on('route:home', function () {
About.render();
});
Backbone.history.start();
</script>
JSON SAMPLE
{
"people": [
{
"firstName": "Jane",
"lastName": "Doe",
"age": "32",
"photo": "test_photo",
"video": "test_video"
},
{
"firstName": "James",
"lastName": "Hamm",
"age": "56",
"photo": "test_photo",
"video": "test_video"
},
再次感谢您的任何建议。我是stackoverflow的新手(发布的第一个问题),请告诉我是否需要提供更多信息。
答案 0 :(得分:2)
如果您不想修改JSON文件,可以在PersonCollection中更改解析函数以返回person数组。例如:
var PersonCollection = Backbone.Collection.extend({
model: Person,
url: '/people.json',
parse: function (response) {
// Return people object which is the array from response
return response.people
}
});
Backbone文档:http://backbonejs.org/#Model-parse
只要服务器返回模型的数据,在获取和保存时,就会调用parse 。该函数传递原始响应对象, 并且应该返回要在模型上设置的属性hash。该 默认实现是一个无操作,只需通过JSON 响应。如果您需要使用预先存在的API,请覆盖此项,或 更好地命名你的回答。
答案 1 :(得分:0)
U可以直接使用您的Collection填充JSON数据。 Collection将根据JSON对象数组来填充数据。在您的情况下,如果您不想更改JSON数据,即如果您想保持'people'属性不变,则可以按backbone-relational.js填充所有数据。它有助于使用嵌套的JSON数据。