/**
* Retrieve coupon/rule uses for specified customer
*
* @param Mage_SalesRule_Model_Rule $rule
* @param int $customerId
*
* @return string
*/
public function getCustomerUses($rule, $customerId)
{
$read = $this->_getReadAdapter();
$select = $read->select()->from($this->getTable('rule_customer'), array('cnt' => 'count(*)'))->where('rule_id = :rule_id')->where('customer_id = :customer_id');
return $read->fetchOne($select, array(':rule_id' => $rule->getRuleId(), ':customer_id' => $customerId));
}
