woocommerce custom product attribute type code example

Example 1: add custom field to variation woocommerce

/**
 * @snippet       Add Custom Field to Product Variations - WooCommerce
 * @how-to        Get CustomizeWoo.com FREE
 * @sourcecode    https://businessbloomer.com/?p=73545
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.5.6
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */
 
// -----------------------------------------
// 1. Add custom field input @ Product Data > Variations > Single Variation
 
add_action( 'woocommerce_variation_options_pricing', 'bbloomer_add_custom_field_to_variations', 10, 3 );
 
function bbloomer_add_custom_field_to_variations( $loop, $variation_data, $variation ) {
woocommerce_wp_text_input( array(
'id' => 'custom_field[' . $loop . ']',
'class' => 'short',
'label' => __( 'Custom Field', 'woocommerce' ),
'value' => get_post_meta( $variation->ID, 'custom_field', true )
)
);
}
 
// -----------------------------------------
// 2. Save custom field on product variation save
 
add_action( 'woocommerce_save_product_variation', 'bbloomer_save_custom_field_variations', 10, 2 );
 
function bbloomer_save_custom_field_variations( $variation_id, $i ) {
$custom_field = $_POST['custom_field'][$i];
if ( isset( $custom_field ) ) update_post_meta( $variation_id, 'custom_field', esc_attr( $custom_field ) );
}
 
// -----------------------------------------
// 3. Store custom field value into variation data
 
add_filter( 'woocommerce_available_variation', 'bbloomer_add_custom_field_variation_data' );
 
function bbloomer_add_custom_field_variation_data( $variations ) {
$variations['custom_field'] = '<div class="woocommerce_custom_field">Custom Field: <span>' . get_post_meta( $variations[ 'variation_id' ], 'custom_field', true ) . '</span></div>';
return $variations;
}

Example 2: wordpress product custom field edit

// Add columns to admin orders table.
add_filter( 'manage_edit-shop_order_columns', 'set_custom_edit_shop_order_columns' );
function set_custom_edit_shop_order_columns($columns) {
    $columns['courier_reference'] = __( 'Courier reference', 'woocommerce' );
    $columns['tracking_number'] = __( 'Tracking number', 'woocommerce' );
    $columns['shipping_date'] = __( 'Shipping date', 'woocommerce' );
    return $columns;
}

// Add the data to the custom columns for the order post type:
add_action( 'manage_shop_order_posts_custom_column' , 'custom_shop_order_column', 10, 2 );
function custom_shop_order_column( $column, $post_id ) {
    switch ( $column ) {

        case 'courier_reference' :
            echo esc_html( get_post_meta( $post_id, 'courier_reference', true ) );
            break;

        case 'tracking_number' :
            echo esc_html( get_post_meta( $post_id, 'tracking_number', true ) );
            break;

        case 'shipping_date' :
            echo esc_html( get_post_meta( $post_id, 'shipping_date', true ) );
            break;

    }
}

// Add a metabox.
add_action( 'add_meta_boxes', 'add_shop_order_meta_box' );
function add_shop_order_meta_box() {

    add_meta_box(
        'custom_meta_box',
        __( 'Tracking information', 'woocommerce' ),
        'shop_order_content_callback',
        'shop_order'
    );

}

// For displaying metabox content
function shop_order_content_callback( $post ) {

    $courier_reference = get_post_meta( $post->ID, 'courier_reference', true );

    echo '<p>' . __( 'Courier reference', 'woocommerce' ) . '<br>
    <textarea style="width:100%" id="courier_reference" name="courier_reference">' . esc_attr( $courier_reference ) . '</textarea></p>';

    $tracking_number = get_post_meta( $post->ID, 'tracking_number', true );

    echo '<p>' . __( 'Tracking number', 'woocommerce' ) . '<br>
    <input type="text" style="width:100%" id="tracking_number" name="tracking_number" value="' . esc_attr( $tracking_number ) . '"></p>';

    $shipping_date = get_post_meta( $post->ID, 'shipping_date', true );

    echo '<p>' . __( 'shipping_date', 'woocommerce' ) . '<br>
    <input type="text" style="width:100%" id="shipping_date" name="shipping_date" value="' . esc_attr( $shipping_date ) . '"></p>';
}

// For saving the metabox data.
add_action( 'save_post_shop_order', 'save_shop_order_meta_box_data' );
function save_shop_order_meta_box_data( $post_id ) {

    // If this is an autosave, our form has not been submitted, so we don't want to do anything.
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
        return;
    }

    // Check the user's permissions.
    if ( ! current_user_can( 'edit_shop_order', $post_id ) ) {
        return;
    }

    // Make sure that 'shipping_date' is set.
    if ( isset( $_POST['courier_reference'] ) ) {

        // Update the meta field in the database.
        update_post_meta( $post_id, 'courier_reference', sanitize_textarea_field( $_POST['courier_reference'] ) );
    }

    // Make sure that 'tracking_number' it is set.
    if ( isset( $_POST['tracking_number'] ) ) {

        // Update the meta field in the database.
        update_post_meta( $post_id, 'tracking_number', sanitize_text_field( $_POST['tracking_number'] ) );
    }

    // Make sure that 'shipping_date' is set.
    if ( isset( $_POST['shipping_date'] ) ) {

        // Update the meta field in the database.
        update_post_meta( $post_id, 'shipping_date', sanitize_text_field( $_POST['shipping_date'] ) );
    }
}