Multi-Select Field with choices callback and with a parent option

Hi,

Does anyone know how to create a multi-select field with choices callback and with a parent option in Ultimate Member?

I want to use the below code kindly given to me by MissVeronica, but my secondary field ‘function get_vehicle_types’ should be a multi-select.

function custom_vehicles_list_dropdown() {

    $vehicles = array( 
                    "Cars"        => "Cars", 
                    "Vans"        => "Vans",
                    "Lorrys"      => "Lorrys",
                    "Aeroplanes"  => "Aeroplanes",
                    "Helicopters" => "Helicopters",
                ); 		

    return $vehicles;         
}

function get_vehicle_types_dropdown( $has_parent = false ) { //get the value from the 'parent' field, sent via the AJAX post. 

    //get the value from the 'parent' field, sent via the AJAX post.
    $parent_options = isset( $_POST['parent_option'] ) ? $_POST['parent_option'] : false;

    $vehicle_options = array(
                    "Cars" => array
                            (
                                "Hatchback" => "Hatchback",
                                "SUV"       => "SUV",
                                "Saloon"    => "Saloon",
                            ),
                    "Vans" => array
                            (
                                "Box Van"   => "Box Van",
                                "City Van"  => "City Van",
                                "Crew Van"  => "Crew Van",
                            ),
                    "Lorrys" => array
                            (
                                "Lorry 1"   => "Lorry 1",
                                "Lorry 2"   => "Lorry 2",
                            ),
                    "Aeroplanes" => array
                            (
                                "Aeroplane 1" => "Aeroplane 1",
                                "Aeroplane 2" => "Aeroplane 2",
                            ),
                    "Helicopters" => array
                            ( 
                                "Compound"     => "Compound",
                                "Tandem Rotor" => "Tandem Rotor",
                            ),
                    );

    $arr_options = array();

    if ( ! is_array( $parent_options ) ) {
        $parent_options = array( $parent_options );
    }

    foreach ( $parent_options as $parent_option ) {
        if ( isset( $vehicle_options[ $parent_option ] ) ) {
            $arr_options = array_merge( $arr_options, $vehicle_options[ $parent_option ] );
        } elseif ( ! isset( $_POST['parent_option'] ) ) {
            foreach ( $vehicle_options as $k => $opts ) {
                $arr_options = array_merge( $opts, $arr_options );
            }
        }
    }

    //code to do something if other options are not selected or empty match
    if ( empty( $arr_options ) ) {
        $arr_options[ ] = "no vehicles";
    } else {
        $arr_options = array_unique( $arr_options );
    }

    return $arr_options;
}

Any help with this will be greatly appreciated.

Thank you,

Denis

• This topic was modified 1 year, 6 months ago by den1sa.