266c266
<     
---
> 
304,333d303
<     
<     /**
<      * Add a reference to the reference map
<      *
<      * @param string $rule
<      * @param string|array $columns
<      * @param string $refTableClass
<      * @param string|array $refColumns
<      * @param string $onDelete
<      * @param string $onUpdate
<      * @return Zend_Db_Table_Abstract
<      */
<     public function addReference($rule, $columns, $refTableClass, $refColumns, $onDelete = null, $onUpdate = null)
<     {
<         $reference = array('columns'       => $columns,
<                            'refTableClass' => $refTableClass,
<                            'refColumns'    => $refColumns);
<         
<         $constraints = array('onDelete', 'onUpdate');
<         
<         foreach ($constraints as $constraint) {
<             if (!empty($$constraint)) {
<                 $reference[$constraint] = $$constraint;
<             };
<         }
<         
<         $this->_referenceMap[$rule] = $reference;
<         
<         return $this;
<     }
375c345
<     
---
>