自定义分类未显示在管理中

我制作了一个自定义内容类型和分类的插件。CPT表现良好，但分类学却不好。有很多代码，但分类信息分析如下：

完整代码可在此处找到github

    <?php

function check_exhibition_type_tax() {
        $labels = array(
            \'name\'                  => _x( \'Exhibition Types\', \'taxonomy general name\' ),
            \'singular_name\'         => _x( \'Exhibition Type\', \'taxonomy singular name\' ),
            \'add_new\'               => _x( \'Add New Exhibition Type\', \'Exhibition Type\'),
            \'add_new_item\'          => __( \'Add New Exhibition Type\' ),
            \'edit_item\'             => __( \'Edit Exhibition Type\' ),
            \'new_item\'              => __( \'New Exhibition Type\' ),
            \'view_item\'             => __( \'View Exhibition Type\' ),
            \'search_items\'          => __( \'Search Exhibition Types\' ),
            \'not_found\'             => __( \'No Exhibition Type found\' ),
            \'not_found_in_trash\'    => __( \'No Exhibition Type found in Trash\' ),
        );

        $pages = array(\'ksasexhibits\');

        $args = array(
            \'labels\'            => $labels,
            \'singular_label\'    => __(\'Exhibiton Type\'),
            \'public\'            => true,
            \'show_ui\'           => true,
            \'hierarchical\'      => true,
            \'show_tagcloud\'     => false,
            \'show_in_nav_menus\' => false,
            \'rewrite\'           => array(\'slug\' => \'exhibiton\', \'with_front\' => false ),
         );
        register_taxonomy(\'exhibition_type\', $pages, $args);
}

    add_action(\'init\', \'register_exhibition_type_tax\');

function check_exhibition_type_terms(){

    //see if we already have populated any terms
    $term = get_terms (\'exhibition_type\', array( \'hide_empty\' => false ) );

    //if no terms then lets add our terms
      if( empty( $term ) ){
        $terms = define_exhibition_type_terms();
        foreach( $terms as $term ){
            if( !term_exists( $term[\'name\'], \'exhibition_type\' ) ){
                wp_insert_term( $term[\'name\'], \'exhibition_type\', array( \'slug\' => $term[\'slug\'] ) );
            }
        }
    }

}

add_action ( \'init\', \'check_exhibition_type_terms\' );

function define_exhibiton_type_terms(){

$terms = array(
        \'0\' => array( \'name\' => \'Campus Partnerships\',\'slug\' => \'campus\'),
        \'1\' => array( \'name\' => \'Community Partnerships\',\'slug\' => \'community\'),
        \'2\' => array( \'name\' => \'Independent Study\',\'slug\' => \'independent\'),
        \'3\' => array( \'name\' => \'Digital Work.\',\'slug\' => \'digital\'),
        \'4\' => array( \'name\' => \'Mellon Foundation\',\'slug\' => \'mellon\'),
    );

    return $terms;
}

add_filter( \'manage_edit-ksasexhibits_columns\', \'my_ksasexhibits_columns\' ) ;

function my_ksasexhibits_columns( $columns ) {

    $columns = array(
        \'cb\' => \'<input type="checkbox" />\',
        \'title\' => __( \'Name\' ),
        \'exhibitons\' => __( \'Exhibiton Type\' ),
        \'date\' => __( \'Date\' ),
    );

    return $columns;
}

add_action( \'manage_studyfields_posts_custom_column\', \'my_manage_ksasexhibits_columns\', 10, 2 );

function my_manage_program_columns( $column, $post_id ) {
    global $post;

    switch( $column ) {

        /* If displaying the \'program_type\' column. */

        case \'exhibitons\' :

            /* Get the program_types for the post. */
            $terms = get_the_terms( $post_id, \'exhibition_type\' );

            /* If terms were found. */
            if ( !empty( $terms ) ) {

                $out = array();

                /* Loop through each term, linking to the \'edit posts\' page for the specific term. */
                foreach ( $terms as $term ) {
                    $out[] = sprintf( \'<a href="%s">%s</a>\',
                        esc_url( add_query_arg( array( \'post_type\' => $post->post_type, \'exhibiton_type\' => $term->slug ), \'edit.php\' ) ),
                        esc_html( sanitize_term_field( \'name\', $term->name, $term->term_id, \'exhibiton_type\', \'display\' ) )
                    );
                }

                /* Join the terms, separating them with a comma. */
                echo join( \', \', $out );
            }

            /* If no terms were found, output a default message. */
            else {
                _e( \'No Exhibitons Assigned\' );
            }

            break;
        /* Just break out of the switch statement for everything else. */
        default :
            break;
    }
}

?>

<?php // hook into the init action and call create_book_taxonomies when it fires add_action( \'init\', \'create_ksasexhibits_taxonomies\', 0 ); // create two taxonomies, genres and writers for the post type "book" function create_ksasexhibits_taxonomies() { // Add new taxonomy, make it hierarchical (like categories) $labels = array( \'name\' => _x( \'Exhibition Types\', \'taxonomy general name\' ), \'singular_name\' => _x( \'Exhibition Type\', \'taxonomy singular name\' ), \'add_new\' => _x( \'Add New Exhibition Type\', \'Exhibition Type\'), \'add_new_item\' => __( \'Add New Exhibition Type\' ), \'edit_item\' => __( \'Edit Exhibition Type\' ), \'new_item\' => __( \'New Exhibition Type\' ), \'view_item\' => __( \'View Exhibition Type\' ), \'search_items\' => __( \'Search Exhibition Types\' ), \'not_found\' => __( \'No Exhibition Type found\' ), \'not_found_in_trash\' => __( \'No Exhibition Type found in Trash\' ), ); $args = array( \'labels\' => $labels, \'singular_label\' => __(\'Exhibiton Type\'), \'public\' => true, \'show_ui\' => true, \'hierarchical\' => true, \'show_tagcloud\' => false, \'show_in_nav_menus\' => false, \'rewrite\' => array(\'slug\' => \'exhibiton\', \'with_front\' => false ), ); register_taxonomy( \'exhibition_type\', \'ksasexhibits\', $args ); } function register_ksasexhibits_posttype() { $labels = array( \'name\' => _x( \'Exhibits & Programs\', \'post type general name\' ), \'singular_name\' => _x( \'Exhibit\', \'post type singular name\' ), \'add_new\' => __( \'Add New Exhibit & Program\' ), \'add_new_item\' => __( \'Add New Exhibit & Program\' ), \'edit_item\' => __( \'Edit Exhibit & Program\' ), \'new_item\' => __( \'New Exhibit & Program\' ), \'view_item\' => __( \'View Exhibit & Program\' ), \'search_items\' => __( \'Search Exhibit & Program\' ), \'not_found\' => __( \'No Exhibit & Program found\' ), \'not_found_in_trash\'=> __( \'No Exhibit & Program found in Trash\' ), \'parent_item_colon\' => __( \'\' ), \'menu_name\' => __( \'Exhibits & Programs\' ) ); //$taxonomies = array( \'exhibition_type\' ); $supports = array(\'title\',\'revisions\',\'thumbnail\' ); $post_type_args = array( \'labels\' => $labels, \'singular_label\' => __(\'Exhibit & Program\'), \'public\' => true, \'show_ui\' => true, \'publicly_queryable\'=> true, \'query_var\' => true, \'capability_type\' => \'post\', \'has_archive\' => false, \'hierarchical\' => true, \'rewrite\' => array(\'slug\' => \'exhibitons\', \'with_front\' => false ), \'supports\' => $supports, \'menu_position\' => 5, //\'taxonomies\' => $taxonomies, \'show_in_nav_menus\' => true ); register_post_type(\'ksasexhibits\',$post_type_args); } add_action(\'init\', \'register_ksasexhibits_posttype\'); function define_exhibiton_type_terms() { $terms = array( \'0\' => array( \'name\' => \'Campus Partnerships\',\'slug\' => \'campus\'), \'1\' => array( \'name\' => \'Community Partnerships\',\'slug\' => \'community\'), \'2\' => array( \'name\' => \'Independent Study\',\'slug\' => \'independent\'), \'3\' => array( \'name\' => \'Digital Work.\',\'slug\' => \'digital\'), \'4\' => array( \'name\' => \'Mellon Foundation\',\'slug\' => \'mellon\'), ); return $terms; } function check_exhibition_type_terms(){ //see if we already have populated any terms $terms = get_terms (\'exhibition_type\', array( \'hide_empty\' => false ) ); //if no terms then lets add our terms if( empty( $terms ) ){ $terms = array( \'0\' => array( \'name\' => \'Campus Partnerships\',\'slug\' => \'campus\'), \'1\' => array( \'name\' => \'Community Partnerships\',\'slug\' => \'community\'), \'2\' => array( \'name\' => \'Independent Study\',\'slug\' => \'independent\'), \'3\' => array( \'name\' => \'Digital Work.\',\'slug\' => \'digital\'), \'4\' => array( \'name\' => \'Mellon Foundation\',\'slug\' => \'mellon\'), ); foreach( $terms as $term ){ if( !term_exists( $term[\'name\'], \'exhibition_type\' ) ){ wp_insert_term( $term[\'name\'], \'exhibition_type\', array( \'slug\' => $term[\'slug\'] ) ); } } } } add_action ( \'init\', \'check_exhibition_type_terms\' ); ?>

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