Add custom field to Woocommerce add new attributeedit page

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Is there a way to add a custom field to the add new attribute page or edit attribute in Woocommerce ?

Preferably with CMB2, but whatever works.

As I understand, this specific section of woocommerce is a taxonomy inception - it's a taxonomy that creates taxonomies :)

I looked under woocommerce/includes/class-wc-post-types.php but not sure what filter would do the trick (if any).

I've managed to add fields to the individual terms but I need a field for the attribute itself.

Is there a way to add a custom field to the add new attribute page or edit attribute in Woocommerce ?

Preferably with CMB2, but whatever works.

As I understand, this specific section of woocommerce is a taxonomy inception - it's a taxonomy that creates taxonomies :)

I looked under woocommerce/includes/class-wc-post-types.php but not sure what filter would do the trick (if any).

I've managed to add fields to the individual terms but I need a field for the attribute itself.

• woocommerce-offtopic

Share Improve this question asked Jul 14, 2020 at 23:29 MihaiMihai 12911 silver badge1010 bronze badges 3

• using 'woocommerce_after_add_to_cart_form' and 'woocommerce_after_edit_attribute_fields' actions, i've managed to output a field on the add / edit pages, don't know how to save / load the value from the database – Mihai Commented Jul 15, 2020 at 0:33
• Did my answer help or you needed more details? :) – Sally CJ Commented Jul 16, 2020 at 6:29
• 1 Yes, thanks! I ended up creating a function to generate multiple fields in case i needed, but basically doing what you suggested. – Mihai Commented Jul 19, 2020 at 22:55

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1 Answer 1

Sorted by: Reset to default 13

Yes, you can add custom fields to WooCommerce (product) attributes, which are WordPress custom taxonomies — e.g. an attribute named Color creates a taxonomy with the slug pa_color.

But because the data are stored in the woocommerce_attribute_taxonomies table which does not offer a field for custom data, you'll need to save your data somewhere else, e.g. the WordPress options table (wp_options) like what I did in the examples below:

Add "My Field" to the attribute form:

function my_edit_wc_attribute_my_field() {
    $id = isset( $_GET['edit'] ) ? absint( $_GET['edit'] ) : 0;
    $value = $id ? get_option( "wc_attribute_my_field-$id" ) : '';
    ?>
        <tr class="form-field">
            <th scope="row" valign="top">
                <label for="my-field">My Field</label>
            </th>
            <td>
                <input name="my_field" id="my-field" value="<?php echo esc_attr( $value ); ?>" />
            </td>
        </tr>
    <?php
}
add_action( 'woocommerce_after_add_attribute_fields', 'my_edit_wc_attribute_my_field' );
add_action( 'woocommerce_after_edit_attribute_fields', 'my_edit_wc_attribute_my_field' );

Set/save the "My Field" value, e.g. in the options table:

function my_save_wc_attribute_my_field( $id ) {
    if ( is_admin() && isset( $_POST['my_field'] ) ) {
        $option = "wc_attribute_my_field-$id";
        update_option( $option, sanitize_text_field( $_POST['my_field'] ) );
    }
}
add_action( 'woocommerce_attribute_added', 'my_save_wc_attribute_my_field' );
add_action( 'woocommerce_attribute_updated', 'my_save_wc_attribute_my_field' );

Delete the custom option when the attribute is deleted.

add_action( 'woocommerce_attribute_deleted', function ( $id ) {
    delete_option( "wc_attribute_my_field-$id" );
} );

Then for example, on a taxonomy/term archive page, you can get the My Field value like so:

$term = get_queried_object();
$attr_id = wc_attribute_taxonomy_id_by_name( $term->taxonomy );
$my_field = get_option( "wc_attribute_my_field-$attr_id" );

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