title: cakephp datasource Call to undefined method
body: <p>I've created a simple <code>datasource</code>:</p>
  
  <pre><code>// app/Model/Datasource/FeedSource.php
  
  App::uses('DataSource', 'Model/Datasource');
  
  class FeedSource extends DataSource {
      public function abcd() {
          echo 'Hello World!';
      }
  }
  </code></pre>
  
  <p>in my <code>database.php</code>:</p>
  
  <pre><code>public $feed = array(
      'datasource' =&gt; 'FeedSource'
  );
  </code></pre>
  
  <p>And in <code>Feeda</code> model:
  
  
  <pre><code>class Feeda extends AppModel {
      public $useTable = false;
      public $useDbConfig = 'feed';
  }
  </code></pre>
  
  <p>in <code>list</code> controller:</p>
  
  <pre><code>$this-&gt;loadModel('Feeda');
  $this-&gt;Feeda-&gt;abcd();
  </code></pre>
  
  <p>But, it returns a fatal error:</p>
  
  <pre><code>Error: Call to undefined method FeedSource::query()
  </code></pre>
  
  <p>How to resolve it?</p>
  
  <p>Thanks...</p>