codecamp

EmberJS 路由器指定查询参数

描述

查询参数在路由驱动控制器上指定。查询参数在URL中绑定,并配置查询参数,它们必须在控制器上声明,并且它们应该是活动的。定义有助于渲染模板的数组的查询参数过滤器的计算属性。

语句

Ember.Controller.extend({
   queryParams: ['queryParameter'],
   queryParameter: null
});

例子

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs Specifying Query Parameters </title>
      <!-- CDN's -->
      <script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/3.0.1/handlebars.min.js"></script>
      <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.10.0/ember.min.js"></script>
      <script src="https://builds.emberjs.com/tags/v1.10.0-beta.3/ember-template-compiler.js"></script>
      <script src="https://builds.emberjs.com/release/ember.debug.js"></script>
      <script src="https://builds.emberjs.com/beta/ember-data.js"></script>
   </head>
   <body>
      <script type="text/x-handlebars" data-template-name="application">
         <h3>Enter values to add:</h3>
         <!-- sending action to the addQuery  method -->
         <form {{action "addQuery" on="submit"}}>
            {{input value=queryParma}}
            <input type="submit" value="Send Tag"/>
         </form>
      </script>

      <script type="text/javascript">
         App = Ember.Application.create();

         App.ApplicationController = Ember.ArrayController.extend({
            //specifyint 'query' as one of controller's query parameter
            queryParams: ['query'],
            //initialize the query value
            query: null,

            //defining a computed property queryParam
            queryParma: Ember.computed.oneWay('query'),
               actions: {
                  addQuery: function() {
                     //setting up the query parameters and displaying it
                     this.set('query', this.get('queryParma'));
                     document.write(this.get('query'));
                  }
               }
            });
      </script>
   </body>
</html>

输出

让我们执行以下步骤,看看上面的代码如何工作:

  • 将上面的代码保存在routing_qry_param.html文件中

  • 在浏览器中打开此HTML文件。

EmberJS 测试
温馨提示
下载编程狮App,免费阅读超1000+编程语言教程
取消
确定
目录

关闭

MIP.setData({ 'pageTheme' : getCookie('pageTheme') || {'day':true, 'night':false}, 'pageFontSize' : getCookie('pageFontSize') || 20 }); MIP.watch('pageTheme', function(newValue){ setCookie('pageTheme', JSON.stringify(newValue)) }); MIP.watch('pageFontSize', function(newValue){ setCookie('pageFontSize', newValue) }); function setCookie(name, value){ var days = 1; var exp = new Date(); exp.setTime(exp.getTime() + days*24*60*60*1000); document.cookie = name + '=' + value + ';expires=' + exp.toUTCString(); } function getCookie(name){ var reg = new RegExp('(^| )' + name + '=([^;]*)(;|$)'); return document.cookie.match(reg) ? JSON.parse(document.cookie.match(reg)[2]) : null; }