//app_controller.php
/** 
* Refreshes the Auth to get new data 
* @param string $field 
* @param string $value 
* @return void 
*/ 
function _refreshAuth($field = '', $value = '') { 
	if (!empty($field) && !empty($value)) { 
		$this->Session->write($this->Auth->sessionKey .'.'. $field, $value); 
	}else{
		if (isset($this->User)) { 
			$this->Auth->login($this->User->read(false, $this->Auth->user('id'))); 
		}else{ 
			$this->Auth->login(ClassRegistry::init('User')->findById($this->Auth->user('id'))); 
		} 
	} 
}

http://groups.google.com/group/cake-php/browse_thread/thread/6b195757354e364c

Cakephp Auth reset/reload

cakephp

PHP