You can use this snippet to update the shipping class if a line item in the cart includes a specific add-on field. You’ll need to update the field ID and shipping class slug.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| // Update shipping class if a specific field has any value | |
| // Uncomment line below if you want to check the field for a specific value | |
| add_action( 'woocommerce_before_calculate_totals', function( $cart ) { | |
| if ( is_admin() && ! defined( 'DOING_AJAX' ) ) { | |
| return; | |
| } | |
| $target_field_id = 1642; // the field ID | |
| $shipping_class = 'easy'; // the shipping class slug | |
| $term = get_term_by( 'slug', $shipping_class, 'product_shipping_class' ); | |
| if ( ! $term ) { | |
| return; | |
| } | |
| foreach ( $cart->get_cart() as $cart_item ) { | |
| if ( empty( $cart_item['product_extras']['groups'] ) ) { | |
| continue; | |
| } | |
| foreach ( $cart_item['product_extras']['groups'] as $group ) { | |
| // if ( isset( $group[ $target_field_id ]['value'] ) && $group[ $target_field_id ]['value'] === 'Specific Value' ) { | |
| if ( ! empty( $group[ $target_field_id ]['value'] ) ) { | |
| $cart_item['data']->set_shipping_class_id( $term->term_id ); // Set the shipping class ID | |
| $cart_item['data']->save(); | |
| break; | |
| } | |
| } | |
| } | |
| }, 20 ); |