/**
* Save meta value
* If field is cloneable, value is saved as a single entry in DB
* Otherwise value is saved as multiple entries (for backward compatibility)
*
* TODO: A good way to ALWAYS save values in single entry in DB, while maintaining backward compatibility
*
* @param $new
* @param $old
* @param $post_id
* @param $field
*/
static function save($new, $old, $post_id, $field)
{
if (!$field['clone']) {
parent::save($new, $old, $post_id, $field);
return;
}
if (empty($new)) {
delete_post_meta($post_id, $field['id']);
} else {
update_post_meta($post_id, $field['id'], $new);
}
}
/**
* Standard meta retrieval
*
* @param int $post_id
* @param array $field
* @param bool $saved
*
* @return mixed
*/
static function meta($post_id, $saved, $field)
{
$meta = parent::meta($post_id, $saved, $field);
return empty($meta) ? array() : (array) $meta;
}