/**
* 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)
*
* @param $new
* @param $old
* @param $post_id
* @param $field
*
* @return void
*/
static function save($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);
}
}
/**
* Get the field value
* The difference between this function and 'meta' function is 'meta' function always returns the escaped value
* of the field saved in the database, while this function returns more meaningful value of the field
*
* @param array $field Field parameters
* @param array $args Not used for this field
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Array(latitude, longitude, zoom)
*/
static function get_value($field, $args = array(), $post_id = null)
{
$value = parent::get_value($field, $args, $post_id);
list($latitude, $longitude, $zoom) = explode(',', $value . ',,');
return compact('latitude', 'longitude', 'zoom');
}
/**
* Output the field value
* Display option name instead of option value
*
* @use self::meta()
*
* @param array $field Field parameters
* @param array $args Additional arguments. Rarely used. See specific fields for details
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Field value
*/
static function the_value($field, $args = array(), $post_id = null)
{
$value = parent::get_value($field, $args, $post_id);
return empty($value) ? '' : $field['options'][$value];
}