title: Condition inside Ext JS 4.1 GroupHeaderTpl
body: <p>I need to change groupHeaderTpl upon to the groupingField value. In my case, I group through a boolean field.
  How can I do this?</p>
  <pre><code>groupHeaderTpl: '{name}==&quot;true&quot; ? Shared : Your own'
  
  groupHeaderTpl: '[{name}==&quot;true&quot; ? Shared : Your own]'
  </code></pre>