[英]how to use Backbone Collection to fetch this JSON result?
我有以下JSON回复
{
"results":[
{
"Product":{
"id":"1",
"short_name":"Infra - 2200 CAS Sma SIMO onl [DAS.1.1]",
"serial_number":"DAS.1.1",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"full_name_type":"2200",
"full_name_cas_stk":"CAS",
"full_name_size":"Small",
"full_name_simo_mimo":"SIMO only",
"full_name_product_code":"(2961-737)",
"uom":"lot",
"material":"Infra"
},
"Price":[
{
"id":"1",
"product_id":"1",
"source_file":"LTE Test File.xls",
"for_financial_year":"FY12_13",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"gross_unit":"50.00",
"gross_total_value":"0.00",
"gross_total_formula":"=K12*J12",
"incentive_value":"5",
"incentive_formula":"5",
"net_price_unit":"0.00",
"net_price_total_value":"0.00",
"net_price_total_formula":"=N12*J12"
}
]
},
{
"Product":{
"id":"2",
"short_name":"Infra - 2200 CAS Sma SIMO to [DAS.1.2]",
"serial_number":"DAS.1.2",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"full_name_type":"2200",
"full_name_cas_stk":"CAS",
"full_name_size":"Small",
"full_name_simo_mimo":"SIMO to MIMO Retrofit",
"full_name_product_code":"(2961-737)",
"uom":"lot",
"material":"Infra"
},
"Price":[
{
"id":"2",
"product_id":"2",
"source_file":"LTE Test File.xls",
"for_financial_year":"FY12_13",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"gross_unit":"11.00",
"gross_total_value":"0.00",
"gross_total_formula":"=K13*J13",
"incentive_value":"24",
"incentive_formula":"24",
"net_price_unit":"0.00",
"net_price_total_value":"0.00",
"net_price_total_formula":"=N13*J13"
}
]
},
{
"Product":{
"id":"3",
"short_name":"Infra - 2200 CAS Sma Full MIM [DAS.1.3]",
"serial_number":"DAS.1.3",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"full_name_type":"2200",
"full_name_cas_stk":"CAS",
"full_name_size":"Small",
"full_name_simo_mimo":"Full MIMO",
"full_name_product_code":"(2961-737)",
"uom":"lot",
"material":"Infra"
},
"Price":[
{
"id":"3",
"product_id":"3",
"source_file":"LTE Test File.xls",
"for_financial_year":"FY12_13",
"created_by":"Wesley Jace Tan",
"modified_by":"Wesley Jace Tan",
"created":"2013-02-11 07:58:20",
"modified":"2013-02-11 07:58:20",
"gross_unit":"12.00",
"gross_total_value":"0.00",
"gross_total_formula":"=K14*J14",
"incentive_value":"5",
"incentive_formula":"5",
"net_price_unit":"0.00",
"net_price_total_value":"0.00",
"net_price_total_formula":"=N14*J14"
}
]
}
]
}
检索上述数据的url是/products/index.json
检索产品数据第2页的URL是/products/index.json/page:2
我把以下内容写成了Collection
<script type="text/javascript">
(function ($) {
window.AppView = Backbone.View.extend({
el: $("body")
});
var appview = new AppView;
var Products = Backbone.Collection.extend({
model: Product,
url: '/products/index.json'
});
Products.fetch();
})(jQuery);
</script>
我想我写错了Products
系列。
请指教。
UPDATE
这是我的新代码http://jsfiddle.net/Cw6PT/
这是我现在的错误消息:Uncaught TypeError:Object function(){return c.apply(this,arguments)}没有方法'fetch'
您的Products
是Collection
类,而不是Collection
对象。 将代码更改为
new Products().fetch()
要么
var Products = new (Backbone.Collection.extend(...))
应该管用。 此外,如果要自定义如何解析JSON回复,可以覆盖collection.parse 。
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