我有一个插件，正在创建一些页面，我想使用我为这些特定页面制作的自定义模板。这些页面创建得很好，甚至其中一个模板也在工作，但另一个模板不工作。我会标记它，但下面是代码：

function ch_register_pages() {

    $ch_register_page_title = \'CH\';
    $ch_register_page_check = get_page_by_title($ch_register_page_title);
    $ch_register_page = array(
        \'post_type\' => \'page\',
        \'post_title\' => $ch_register_page_title,
        \'post_status\' => \'publish\',
        \'post_author\' => 1,
        \'post_slug\' => \'CH\'
    );


    wp_insert_post($ch_register_page);

    $ch_parent = get_page_by_path(\'CH\');
    $ch_parent_id = $ch_parent->ID;


    $ch_register_page_thankyou_title = \'CH Thank-You\';
    $ch_register_page_thankyou_check = get_page_by_title($ch_register_page_thankyou_title);
    $ch_register_page_thankyou = array(
        \'post_type\' => \'page\',
        \'post_title\' => $ch_register_page_thankyou_title,
        \'post_status\' => \'publish\',
        \'post_author\' => 1,
        \'post_slug\' => \'CH-Thank-you\',
        \'post_parent\' => $ch_parent_id
    );

    wp_insert_post($ch_register_page_thankyou);

}

register_activation_hook( __FILE__, \'ch_register_pages\' );


/*
 *  Add page templates to pages 
 *
*/


function ch_register_page_thanks_template() { ////////////////<-------------Doesnt work

     if ( is_page( \'CH-Thank-you\' ) ) {//change this to match slug
        $page_thankyou_template = dirname( __FILE__ ) . \'/inc/page-ch-thank-you.php\';

    }

    return $page_thankyou_template;
}

add_filter( \'page_template\', \'ch_register_page_thanks_template\' );

function ch_register_page_template() {////////////////<-------------Works

    if ( is_page( \'CH\' ) ) { //change this to match slug
        $page_template = dirname( __FILE__ ) . \'/inc/page-ch.php\';
    }

    return $page_template;

}

add_filter( \'page_template\', \'ch_register_page_template\' );