title: Query with codeigniter form helper
body: <p>I'm working on a radius search with Google Maps API and MYSQL (http://spinczyk.net/blog/2009/10/04/radius-search-with-google-maps-and-mysql/) </p>
  
  <p>Is is possible to use CI form helper functions for the following query?</p>
  
  <pre><code>SELECT
  `id`,
  `name`,
  ACOS( SIN( RADIANS( `latitude` ) ) * SIN( RADIANS( $fLat ) ) + COS( RADIANS( `latitude` ) )
  * COS( RADIANS( $fLat )) * COS( RADIANS( `longitude` ) - RADIANS( $fLon )) ) * 6380 AS `distance`
  FROM `stations`
  WHERE
  ACOS( SIN( RADIANS( `latitude` ) ) * SIN( RADIANS( $fLat ) ) + COS( RADIANS( `latitude` ) )
  * COS( RADIANS( $fLat )) * COS( RADIANS( `longitude` ) - RADIANS( $fLon )) ) * 6380 &lt; 10
  ORDER BY `distance`
  </code></pre>
  
  <p>I'm not sure how to add all that using form helper.</p>