title: CakePHP: How to access $this->request inside a model
body: <p>I'm on CakePHP v2.4.</p>
  
  <p>In a model's <code>afterSave()</code> callback, I want to do something conditionally, depending on conditions of the request. However <code>$this-&gt;request</code> does not seem to be defined here:</p>
  
  <pre><code>public function afterSave( $created, $options=array() ) {
      $this-&gt;log( $this-&gt;request ); //NOTHING HERE
  }
  </code></pre>
  
  <p>How do I do this?</p>