title: EXTJS XML mapping
body: <p>I want to read this XML with using a Ext.data.Model into a ExtJS Store:</p>
  
  <pre><code>&lt;interfaces&gt;
      &lt;green&gt; 
          &lt;name&gt;Eth0&lt;/name&gt;
          &lt;enabled&gt;true&lt;/enabled&gt;
      &lt;/green&gt;
  
      &lt;red&gt;
          &lt;name&gt;Eth1&lt;/name&gt;
          &lt;enabled&gt;true&lt;/enabled&gt;
      &lt;/red&gt;
  &lt;/interfaces&gt;
  </code></pre>
  
  <p>I want to show 'Eth0' and 'Eth1' in the 'name' column of my interfaces grid.</p>
  
  <p>this mapping  {name: 'interface', mapping: 'green> name'} only shows Eth0.</p>
  
  <p>how can i do a mapping to show Eth0 and Eth1 in the grid?
  I should not modify xml file structure.</p>
  
  <p>Thanks in advance</p>