content.name返回空以进行收集 [英] content.name returns empty for collection

问题描述

我从ember.js开始，遇到了在ember.js文档中尝试问题的麻烦(

结果:

 < div id ="ember122" class ="ember-view">< div id ="ember142" class ="ember-view">< div id ="ember149" class ="ember-view">你好< script id ="metamorph-0-start" type ="text/x-placeholder"></script>< script id ="metamorph-0-end" type ="text/x-placeholder"></script></div>< div id ="ember150" class ="ember-view">你好< script id ="metamorph-1-start" type ="text/x-placeholder"></script>< script id ="metamorph-1-end" type ="text/x-placeholder"></script></div>< div id ="ember151" class ="ember-view">你好< script id ="metamorph-2-start" type ="text/x-placeholder"></script>< script id ="metamorph-2-end" type ="text/x-placeholder"></script></div></div></div> 

因此，它可以有效地遍历对象，但无法返回每个对象的名称值.为什么是这样?文档是否过时了?有没有更好的方法来达到预期的结果(逐项重复)?感谢您的回答.

解决方案

我认为您使用的是ember-latest或1.0-pre，在这种情况下，您必须在 content.name 前面加上前缀 view .从1.0之前的版本开始，上下文的检索发生了变化.请参阅: Ember.js:车把什么都不显示以获取进一步的解释./p>

那只蜜蜂说，该文档不是最新的.您可以发布带有修复程序的拉动请求吗?

I'm starting with ember.js and ran into trouble trying out things in the ember.js docs (http://docs.emberjs.com/symbols/Handlebars.helpers.html#.collection).

This application code:

App = Ember.Application.create()
App.items = [
  Ember.Object.create({name: 'Dave'}),
  Ember.Object.create({name: 'Mary'}),
  Ember.Object.create({name: 'Sara'})
]

with this template code:

{{#collection contentBinding="App.items"}}
    Hi {{content.name}}
{{/collection}}

Results in this:

<div id="ember122" class="ember-view">    
    <div id="ember142" class="ember-view">    
        <div id="ember149" class="ember-view">  Hi    
            <script id="metamorph-0-start" type="text/x-placeholder">    
            </script>    
            <script id="metamorph-0-end" type="text/x-placeholder">    
            </script>    
        </div>    
        <div id="ember150" class="ember-view">  Hi    
            <script id="metamorph-1-start" type="text/x-placeholder">    
            </script>    
            <script id="metamorph-1-end" type="text/x-placeholder">    
            </script>    
        </div>    
        <div id="ember151" class="ember-view">  Hi    
            <script id="metamorph-2-start" type="text/x-placeholder">    
            </script>    
            <script id="metamorph-2-end" type="text/x-placeholder">    
            </script>    
        </div>    
    </div>    
</div>

So, it effectively iterates through the objects, but fails to return the name values for each. Why is this? Are the docs outdated, perhaps? Is there a better way to achieve the desired result (iterating through the items)? Thanks for your answers.

解决方案

I think you are using ember-latest, or 1.0-pre, in this case, you have to prefix content.name with view. Since 1.0 pre, the retrieval of the context change. see: Ember.js: Handlebars displays nothing for furhter explanations.

That beeing said, the documentation is not up to date. Could you post a pull request with the fix?

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