gistfile1.php

class Item extends AppModel 
{
	public $recursive = -1;
	public $actsAs = array('Containable');
	
	public $hasMany = array(
		'Review' => array(
			'ClassName' => 'Review',
			'foreignKey' => 'item_id'
		)
	);
}

class User extends AppModel 
{
	public $actsAs = array('Containable');
	
	public $hasMany = array(
		'Review' => array(
			'ClassName' => 'Review',
			'foreignKey' => 'user_id'
		)
	);
}

lass Review extends AppModel 
{
	public $actsAs = array('Containable');
	
	public $belongsTo = array(
		'User' => array(
			'ClassName' => 'User',
			'foreignKey' => 'user_id',
		),
		'Item' => array(
			'ClassName' => 'Item',
			'foreignKey' => 'item_id',
		),
	);
}