webservice/application/models/CommandesPieces.php

<?php
class Application_Model_CommandesPieces extends Zend_Db_Table_Abstract
{
	protected $_name = 'commandes_pieces';

	protected $_referenceMap = array(
		'CommandesPieces' => array(
    		'columns' => array('commande_id'),
			'refTableClass' => 'Application_Model_Commandes',
            'refColumns' => array('id'),
		),
	);
}