function rcp_validate_discount($code, $subscription_id = 0)
{
$ret = false;
$discounts = new RCP_Discounts();
$discount = $discounts->get_by('code', $code);
if ($discount && $discount->status == 'active') {
// Make sure discount is not expired and not maxed out
if (!$discounts->is_expired($discount->id) && !$discounts->is_maxed_out($discount->id)) {
$ret = true;
}
// If the discount is restricted to a level, ensure that's the level being signed up for
if ($discounts->has_subscription_id($discount->id)) {
if ($subscription_id != $discounts->get_subscription_id($discount->id)) {
$ret = false;
}
}
}
// Ensure codes are identical, including case
if (strcmp($code, $discount->code) != 0) {
$ret = false;
}
return apply_filters('rcp_is_discount_valid', $ret, $discount, $subscription_id);
}
