我正在构建一个自定义插件，在保存自定义帖子类型的元数据时遇到了问题。这些框在编辑器中正确显示，但单击“发布”或“保存草稿”时，输入的值不会保留。

我已经在下面粘贴了我的代码片段。我已经学习了一些教程，并在这里查看了几个问题，但看起来我已经正确地学习了所有内容，我不知道哪里出了问题。我相信这是显而易见的。

任何帮助都将不胜感激。

自定义帖子类型

// Register the Jobs post type
function fg_registerJobsPostType() {
    // Floodgate Jobs Post Type
    $fg_postType = \'fg_job\';

    $jobsLabels = array(
        \'name\'               => _x( \'Floodgate Jobs\', \'post type general name\', \'\' ),
        \'singular_name\'      => _x( \'Floodgate Job\', \'post type singular name\', \'\' ),
        \'menu_name\'          => _x( \'Floodgate Jobs\', \'admin menu\', \'\' ),
        \'name_admin_bar\'     => _x( \'Floodgate Job\', \'add new on admin bar\', \'\' ),
        \'add_new\'            => __( \'Add New\', \'Floodgate Job\', \'\' ),
        \'add_new_item\'       => __( \'Add New Job\', \'\' ),
        \'new_item\'           => __( \'New Job\', \'\' ),
        \'edit_item\'          => __( \'Edit Job\', \'\' ),
        \'view_item\'          => __( \'View Job\', \'\' ),
        \'all_items\'          => __( \'All Jobs\', \'\' ),
        \'search_items\'       => __( \'Search Jobs\', \'\' ),
        \'parent_item_colon\'  => __( \'Parent Jobs:\', \'\' ),
        \'not_found\'          => __( \'No Jobs found.\', \'\' ),
        \'not_found_in_trash\' => __( \'No Jobs found in Trash.\', \'\' ),
    );

    $jobsArgs = array(
        \'labels\'             => $jobsLabels,
        \'public\'             => true,
        \'publicly_queryable\' => true,
        \'show_ui\'            => true,
        \'show_in_menu\'       => true,
        \'query_var\'          => true,
        \'rewrite\'            => array( \'slug\' => \'fg_job\' ),
        \'capability_type\'    => \'post\',
        \'has_archive\'        => true,
        \'hierarchical\'       => false,
        \'menu_position\'      => 5,
        \'supports\'           => array( \'editor\', \'custom-fields\' )        
    );

    register_post_type( \'fg_job\', $jobsArgs );
}
add_action( \'init\', \'fg_registerJobsPostType\' );

// Register the Jobs Metaboxes
function fg_registerJobsMetabox() {
    /* Add meta boxes on the \'add_meta_boxes\' hook. */
    add_action( \'add_meta_boxes\', \'fg_addJobMetaboxes\' );

    /* Save post meta on the \'save_post\' hook. */
    add_action( \'wp_insert_post_data\', \'fg_saveJobsMeta\', 10, 2);
}
add_action( \'load-post.php\', \'fg_registerJobsMetabox\' );
add_action( \'load-post-new.php\', \'fg_registerJobsMetabox\' );

// Build the display components for the Jobs Metaboxes
function fg_addJobMetaboxes() {
    add_meta_box(
        \'fg_jobDesc\',      // Unique ID
        esc_html__( \'Job Description\', \'Business Cards\' ),    // Title
        \'fg_jobDescMetabox\',   // Callback function
        \'fg_job\',         // Admin page (or post type)
        \'side\',         // Context
        \'default\'         // Priority
    );

    add_meta_box(
        \'fg_jobStatus\',      // Unique ID
        esc_html__( \'Job Status\', \'Printing\' ),    // Title
        \'fg_jobStatusMetabox\',   // Callback function
        \'fg_job\',         // Admin page (or post type)
        \'side\',         // Context
        \'default\'         // Priority
    );

    add_meta_box(
        \'fg_jobDueDate\',      // Unique ID
        esc_html__( \'Due Date\', \'\' ),    // Title
        \'fg_jobDueDateMetabox\',   // Callback function
        \'fg_job\',         // Admin page (or post type)
        \'side\',         // Context
        \'default\'         // Priority
    );

    add_meta_box(
        \'fg_jobPriority\',      // Unique ID
        esc_html__( \'Job Priority\', \'\' ),    // Title
        \'fg_jobPriorityMetabox\',   // Callback function
        \'fg_job\',         // Admin page (or post type)
        \'side\',         // Context
        \'default\'         // Priority
    );
}

function fg_verifyMetaNonce($metaKey) {
    return  (isset($_POST[$metaKey . \'_nonce\']) && wp_verify_nonce( $_POST[$metaKey . \'_nonce\'], basename(__FILE__)));
}

function fg_saveMetaData($postID, $metaKey, $newMetaValue) {
    /* Get the meta value of the custom field key. */
    $metaValue = get_post_meta( $postID, $metaKey, true );

    /* If a new meta value was added and there was no previous value, add it. */
    if ( $newMetaValue && \'\' == $metaValue )
        update_post_meta( $postID, $metaKey, $newMetaValue, true );

    /* If the new meta value does not match the old value, update it. */
    elseif ( $newMetaValue && $newMetaValue != $metaValue )
        update_post_meta( $postID, $metaKey, $newMetaValue );

    /* If there is no new meta value but an old value exists, delete it. */
    elseif ( \'\' == $newMetaValue && $metaValue )
        delete_post_meta( $postID, $metaKey, $metaValue );
}


// Save the Jobs Metadata
function fg_saveJobsMeta($postID, $post) {
    /* Get the post type object. */
    $postType = get_post_type_object( $post->postType );

/* Check if the current user has permission to edit the post. */
if ( !current_user_can( $postType->cap->edit_post, $postID ) )
    return $postID;

    // Save the Job Description
    $metaKey = \'fg_jobDesc\';

        /* Verify the nonce before proceeding. */
        if ( verifyMetaNonce($metaKey) )
            return $postID;

        /* Get the posted data and sanitize it for use as an HTML class. */
        $jobDesc = ( isset( $_POST[$metaKey] ) ? sanitize_text_field( $_POST[$metaKey] ) : \'\' );

    fg_saveMetaData($postID, $metaKey, $jobDesc);

    // Save the Job Status
    $metaKey = \'fg_jobStatus\';

        /* Verify the nonce before proceeding. */
        if ( verifyMetaNonce($metaKey) )
            return $postID;

        /* Get the posted data and sanitize it for use as an HTML class. */
        $jobStatus = ( isset( $_POST[$metaKey] ) ? sanitize_text_field( $_POST[$metaKey] ) : \'\' );

        fg_saveMetaData($postID, $metaKey, $jobStatus);

    // Save the Job Description
    $metaKey = \'fg_jobDueDate\';

        /* Verify the nonce before proceeding. */
        if ( verifyMetaNonce($metaKey) )
            return $postID;

        /* Get the posted data and sanitize it for use as an HTML class. */
        $jobDueDate = ( isset( $_POST[$metaKey] ) ? sanitize_text_field( $_POST[$metaKey] ) : \'\' );

        fg_saveMetaData($postID, $metaKey, $jobDueDate);

    // Save the Job Description
    $metaKey = \'fg_jobPriority\';

        /* Verify the nonce before proceeding. */
        if ( verifyMetaNonce($metaKey) )
            return $postID;

        /* Get the posted data and sanitize it for use as an HTML class. */
        $jobPriority = ( isset( $_POST[$metaKey] ) ? sanitize_text_field( $_POST[$metaKey] ) : \'\' );

        fg_saveMetaData($postID, $metaKey, $jobPriority);
}