/**
* Sanitize code textareas
* @since 1.0.2
* @param string $meta Meta value
* @param array $field Field config array
* @return string Sanitized data
*/
public static function file($meta, $field)
{
$_id_name = $field['id'] . '_id';
// get _id old value
$_id_old = cmb_Meta_Box::get_data($_id_name);
// If specified NOT to save the file ID
if (isset($field['save_id']) && !$field['save_id']) {
$_new_id = '';
} else {
// otherwise get the file ID
$_new_id = isset($_POST[$_id_name]) ? $_POST[$_id_name] : null;
// If there is no ID saved yet, try to get it from the url
if (isset($_POST[$field['id']]) && $_POST[$field['id']] && !$_new_id) {
$_new_id = cmb_Meta_Box::image_id_from_url(esc_url_raw($_POST[$field['id']]));
}
}
if ($_new_id && $_new_id != $_id_old) {
$updated[] = $_id_name;
cmb_Meta_Box::update_data($_new_id, $_id_name);
} elseif ('' == $_new_id && $_id_old) {
$updated[] = $_id_name;
cmb_Meta_Box::remove_data($_id_name, $old);
}
return self::default_sanitization($meta, $field);
}