我们可以在这里为每个帖子创建一个元框，并为其分配一个用户。然后，在我们的帖子页面上，检查当前用户是否与帖子相关。

如果他们与此无关，则将他们重定向回主页或其他地方。

我将使用元框的下拉列表，并用用户填充它。

// Hook into the add_meta_boxes action
add_action( \'add_meta_boxes\', \'kreigd_user_metabox\' );
function kreigd_user_metabox() {
    // Create a new metabox
    add_meta_box( 
        \'kreigd-user-list\',         // ID
        \'User List\',                // Title
        \'kreigd_user_list_callback\',    // Callback
        array(\'post\',\'page\'),       // Post types
        \'normal\', 
        \'high\' 
    );
}
// Output the content for metabox
function kreigd_user_list_callback() {
    // $post is already set, and contains an object: the WordPress post
    global $post;
    $values = get_post_custom( get_the_ID() );
    // Get the current assigned user
    $user_id = isset( $values[\'user_id\'][0] ) ? $values[\'user_id\'][0] : 0;

    // We\'ll use this nonce field later on when saving.
    wp_nonce_field( \'kreigd_nonce\', \'kreigd_user_list_nonce\' );?>
    <p>
        <label for="kreigd_select"><?php _e(\'Choose a user\',\'text-domain\'); ?></label>
        <select name="kreigd_select" id="kreigd_select"><?php 
            $users = get_users(); // Retrieve a list of users
            // Run a loop and add every user to the list
            foreach ( $users as $user ){ ?>
                <option 
                    value="<?php echo esc_html( $user->ID ); ?>"
                    <?php selected( $user->ID, $user_id ); ?>
                >
                    <?php echo esc_html( $user->display_name ); ?>
                </option><?php 
            } ?>
        </select>
    </p><?php    
}
// Save the user to meta box on post save
add_action( \'save_post\', \'mymovieflaws_meta_box_save\' );
function mymovieflaws_meta_box_save( $post_id ){
    // Don\'t save it on autosave
    if( defined( \'DOING_AUTOSAVE\' ) && DOING_AUTOSAVE ) 
        return;
    // If the nonce is not correct, or the value is not set, return
    if( !isset( $_POST[\'kreigd_select\'] ) || !wp_verify_nonce( $_POST[\'kreigd_user_list_nonce\'], \'kreigd_nonce\' ) ) 
        return;
    // If current user doesn\'t have the privilege to save a post, return
    if( !current_user_can( \'edit_post\', $post_id ) ) 
        return;
    $allowed = array( \'a\' => array( \'href\' => array() ) );
    // Save the user\'s ID
    update_post_meta( $post_id, \'user_id\', wp_kses( $_POST[\'kreigd_select\'], $allowed ) );      
}