public static function map_types( $field ) {
$type = isset( $field['type'] ) ? $field['type'] : 'input';
$type_map = apply_filters(
'rwmb_type_map',
array(
'file_advanced' => 'media',
'plupload_image' => 'image_upload',
'url' => 'text'
)
);
return isset( $type_map[ $type ] ) ? $type_map[ $type ] : $type;
}