DiscountCouponTable::isExist

static function isExist($coupon)
{
	$coupon = trim($coupon);
	if ($coupon === '')
		return false;

	$couponIterator = self::getList(array(
		'select' => array('ID', 'COUPON'),
		'filter' => array('=COUPON' => $coupon)
	));
	$existCoupon = $couponIterator->fetch();
	unset($couponIterator);
	if (!empty($existCoupon))
	{
		return array(
			'ID' => $existCoupon['ID'],
			'COUPON' => $existCoupon['COUPON'],
			'MODULE' => 'catalog'
		);
	}
	return false;
}