<?php 
class LocationsController extends AppController
{

...


function geocode() 
{
	App::import('Vendor', 'geocouch');
	App::import('Sanitize');
        $location = Sanitize::escape($this->data['location']);
        
	/*
	 * Don't forget to edit the $GeoCouch->conf parameters!
	 */
	$GeoCouch = new GeoCouch();
	
	/*
	 * The all-in-one method.
	 * This geocodes the string and writes it to CouchDB
	 * The second parameter is any other fields other
	 * than the Google data that you want to save along
	 * with this document.
	 * 
	 * NOTE: if this address already exists in CouchDB
	 * a new revision is created.
	 * 
	 * Returns the CouchDB response, i.e.:
	 * {"ok" : true, "rev":"3825793742", "id" : "dallas-tx" }
	 */
	$GeoCouch->save($location, array('custom_field' => 'value')); 
	
	/*
	 * Simply geo coding.  
	 * Does not write to CouchDB.
	 * Returns an Google Geocoded Object.
	 */
	$geoObj = $GeoCouch->geoCode($location);
	
	/*
	 * Write some Geo JSON to CouchDB.
	 * First parameter is a unique name for the data
	 * Second parameter is the JSON - in 
	 * this case the json_encoded $geoObj from above.
	 */
	$GeoCouch->put($location, json_encode($geoObj));
	
	/*
	 * Get some existing geo data
	 */
	$geoObj = $GeoCouch->get($location);
}

...

}
?>