WooCommerce 添加商品分类自定义字段

// 分类添加表单

function tutorialshares_taxonomy_add_new_meta_field() {

    // this will add the custom meta field to the add new term page

    ?>

    <div class="form-field">

        <label for="term_meta[term_icon]"><?php _e( '图标', 'woocommerce' ); ?></label>

        <input class="regular-text" type="text" name="term_meta[term_icon]" id="term_meta[term_icon]" value="">

    </div>

<?php

}

add_action( 'product_cat_add_form_fields', 'tutorialshares_taxonomy_add_new_meta_field', 10, 2 );

// 分类编辑表单

function tutorialshares_taxonomy_edit_meta_field($term) {

    // put the term ID into a variable

    $t_id = $term->term_id;

    // retrieve the existing value(s) for this meta field. This returns an array

    $term_meta = get_option( "taxonomy_$t_id" ); ?>

    <tr class="form-field">

    <th scope="row" valign="top"><label for="term_meta[term_icon]"><?php _e( '图标', 'woocommerce' ); ?></label></th>

        <td>

            <input class="regular-text" type="text" name="term_meta[term_icon]" id="term_meta[term_icon]" value="<?php echo esc_attr( $term_meta['term_icon'] ) ? esc_attr( $term_meta['term_icon'] ) : ''; ?>">

        </td>

    </tr>

<?php

}

add_action( 'product_cat_edit_form_fields', 'tutorialshares_taxonomy_edit_meta_field', 10, 2 );

// 保存分类数据

function save_taxonomy_custom_meta( $term_id ) {

    if ( isset( $_POST['term_meta'] ) ) {

        $t_id = $term_id;

        $term_meta = get_option( "taxonomy_$t_id" );

        $cat_keys = array_keys( $_POST['term_meta'] );

        foreach ( $cat_keys as $key ) {

            if ( isset ( $_POST['term_meta'][$key] ) ) {

                $term_meta[$key] = $_POST['term_meta'][$key];

            }

        }

        // Save the option array.

        update_option( "taxonomy_$t_id", $term_meta );

    }

}  

add_action( 'edited_product_cat', 'save_taxonomy_custom_meta', 10, 2 );  

add_action( 'create_product_cat', 'save_taxonomy_custom_meta', 10, 2 );

$meta_field_array = get_option('taxonomy_'. $term->term_id);

$meta_icon = $meta_field_array['term_icon'];