如何获取ember应用程序中控制器中模板复选框的值 [英] How to get the value of a checkbox of a template in the controller in ember app

问题描述

这是我的模板：

 < script type =text / x-handlebars> 
 {{view Ember.TextField valueBinding =firstnameplaceholder =First Name}} 
< input type =checkboxname =remember_me>记住我< / input> 
< button {{action save}}>保存< / button> 
< / script> 
  

这是我的控制器：

  App = Ember.Application.create（）; 
 App.ApplicationController = Ember.Controller.extend（{
 save：function（）{
 //需要在这里获取remember_me的值
 alert（this.get （firstname））; 
} 
}）; 
  

如何在控制器中获取remember_me（无论是否被检查）的值。可以在复选框上进行valueBinding操作。如果是这样，可以给我一个示例语法。

jsfiddle：

http://jsfiddle.net/Rtd4d/

解决方案

您应该可以使用ember提供的输入帮助器（请参阅 docs ）。

  {{input type =checkboxchecked = remember_me}} 
  

要获取在控制器上设置的模型，请使用 this.get（'model'）。

所以，要获得 remember_me 属性来自模型，它只是简单的

  this.get（'model'）。get（'remember_me'）
  

假设 remember_me 是一个布尔属性，这应该返回 true 或 false 。

请参阅 jsbin 。

---

编辑

我没有意识到，默认情况下，控制器将委托给它的模型，所以

  this .get（'remember_me'）
  

应该工作。

I am trying to find whether the checkbox is checked or not in a controller.

Here's my template:

<script type="text/x-handlebars">
  {{view Ember.TextField valueBinding="firstname" placeholder="First Name"}}
  <input type="checkbox" name="remember_me"> Remember me </input>
  <button {{action save }}>Save</button>
</script>

Here's my controller:

App = Ember.Application.create();
App.ApplicationController = Ember.Controller.extend({
    save: function(){
//need to get the value of "remember_me" here
      alert(this.get("firstname"));
    }
});

How can I get the value of "remember_me" (whether it's checked or not) in the controller. Can I do valueBinding on the check box. If so , can you please give me an example syntax.

jsfiddle:

http://jsfiddle.net/Rtd4d/

解决方案

You should probably use the input helper that ember provides (see the docs).

{{input type="checkbox" checked=remember_me}}

To get the model that is set on a controller, use this.get('model').

So, to get the remember_me attribute from the model, it's simply

this.get('model').get('remember_me')

Assuming remember_me is a boolean attribute, this should return true or false.

See the jsbin.

---

EDIT

I didn't realize that by default the controller will delegate to it's model, so

this.get('remember_me')

should work.

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