我跟随Misha Rudrastyh的这个教程添加“自定义字段在WordPress快速编辑”功能。我已经成功地完成了教程的大部分内容（步骤1，2和3），但在最后一步4遇到了麻烦，这涉及到添加一个脚本来填充字段。

add_action( 'admin_footer', 'min_max_step_desc_quick_edit_populate');
function min_max_step_desc_quick_edit_populate(){
    ?>
    <script>
    jQuery( function($){
        console.log('min max step code is enabled');

        const wp_inline_edit_function = inlineEditPost.edit;

        // we overwrite the it with our own
        inlineEditPost.edit = function( post_id ) {

            // let's merge arguments of the original function
            wp_inline_edit_function.apply( this, arguments );

            // get the post ID from the argument
            if ( typeof( post_id ) == 'object' ) { // if it is object, get the ID number
                post_id = parseInt( this.getId( post_id ) );
            }

            // add rows to variables
            const edit_row = $( '#edit-' + post_id )
            const post_row = $( '#post-' + post_id )

            const minQty = $( '.column-min', post_row ).text().substring() //  remove $ sign
            const maxQty = $( '.column-max', post_row ).text().substring() //  remove $ sign
            const stepQty = $( '.column-step', post_row ).text().substring() //  remove $ sign
            const productDesc = $( '.column-desc', post_row ).text().substring() //  remove $ sign

            // populate the inputs with column data
            $( ':input[name="min"]', edit_row ).val( minQty );
            $( ':input[name="max"]', edit_row ).val( maxQty );      
            $( ':input[name="step"]', edit_row ).val( stepQty );        
            $( ':input[name="desc"]', edit_row ).val( productDesc );        
        }
    });
    </script>
    <?php
}

我在最后几行中不断得到以下错误

• 错误，意外的'min'（T_STRING），期望';'或'，'. *

我做错了什么？

编辑*（所有其他工作相关功能）*：

// add new columns
add_filter( 'manage_edit-product_columns', 'min_max_step_desc_columns' );
// the above hook will add columns only for default 'post' post type, for CPT:
// manage_{POST TYPE NAME}_posts_columns
function min_max_step_desc_columns( $column_array ) {
    $column_array[ 'min' ] = 'Min';
    $column_array[ 'max' ] = 'Max';
    $column_array[ 'step' ] = 'Step';
    $column_array[ 'desc' ] = 'Description';
    // the above code will add columns at the end of the array
    // if you want columns to be added in another order, use array_slice()
    return $column_array;
}

// Populate our new columns with data
add_action( 'manage_product_posts_custom_column', 'populate_custom_columns', 10, 2 );
function populate_custom_columns( $column_name, $post_id ) {
    // if you have to populate more that one columns, use switch()
    switch( $column_name ) {
        case 'min': {
            $min = get_post_meta( $post_id, '_alg_wc_pq_min', true );
            echo $min;
            break;
        }
        case 'max': {
            $max = get_post_meta( $post_id, '_alg_wc_pq_max', true );
            echo $max;
            break;
        }
        case 'step': {
            $step = get_post_meta( $post_id, '_alg_wc_pq_step', true );
            echo $step;
            break;
        }
        case 'desc': {
            echo get_post_field( 'post_content', $post_id );
            break;
        }
    }
}

// quick_edit_custom_box allows to add HTML in Quick Edit
add_action( 'quick_edit_custom_box',  'mix_max_step_desc_quick_edit_fields', 10, 2 );

function mix_max_step_desc_quick_edit_fields( $column_name, $post_type ) {

    switch( $column_name ) {
        case 'min': {
            ?>
            <fieldset class="inline-edit-col-left">
            <div class="inline-edit-col">
                <label>
                    <span class="title">Min</span>
                    <input type="text" name="min">
                </label>
            </div>
            <?php
            break;
        }
        case 'max': {
            ?>
            <div class="inline-edit-col">
                <label>
                    <span class="title">Max</span>
                    <input type="text" name="max">
                </label>
            </div>
            <?php
            break;
        }
        case 'step': {
            ?>
            <div class="inline-edit-col">
                <label>
                    <span class="title">Step</span>
                    <input type="text" name="step">
                </label>
            </div>
            <?php
            break;
        }
        case 'desc': {
            ?>
            <div class="inline-edit-col">
                <label>
                    <span class="title">Description</span>
                    <input type="text" name="desc">
                </label>
            </div>
            </fieldset>
            <?php
            break;
        }
    }
}

// save fields after quick edit
add_action( 'save_post', 'min_max_step_desc_quick_edit_save' );
function min_max_step_desc_quick_edit_save( $post_id ){
    // check inlint edit nonce
    if ( ! wp_verify_nonce( $_POST[ '_inline_edit' ], 'inlineeditnonce' ) ) {
        return;
    }

    // update the price
    $min = ! empty( $_POST[ 'min' ] ) ? absint( $_POST[ 'min' ] ) : '';
    update_post_meta( $post_id, '_alg_wc_pq_min', $min );

    $max = ! empty( $_POST[ 'max' ] ) ? absint( $_POST[ 'max' ] ) : '';
    update_post_meta( $post_id, '_alg_wc_pq_max', $max );
    
    $step = ! empty( $_POST[ 'step' ] ) ? absint( $_POST[ 'step' ] ) : '';
    update_post_meta( $post_id, '_alg_wc_pq_step', $step );
    
    $desc = ! empty( $_POST[ 'desc' ] ) ? absint( $_POST[ 'desc' ] ) : '';
    update_post_meta( $post_id, 'post_content', $desc );
}

标签：Add custom fields to admin products Bulk Edit in WooCommerce 3.2+