将静态页面添加到自定义帖子类型的阅读设置

Question

我创建了自定义帖子类型，我想让用户选择存档页面的静态页面。例如，在Post Page下。我想添加一个项目页面：[下拉列表]

有没有办法在阅读设置页面添加另一个静态页面选项？是否有现有的钩子来修改它？

另外，有没有办法在Pages中标记所选页面？

更新

查看/wp/wp-admin/includes/template.php:1768

/**
 * Filters the default post display states used in the posts list table.
 *
 * @since 2.8.0
 * @since 3.6.0 Added the `$post` parameter.
 *
 * @param array   $post_states An array of post display states.
 * @param WP_Post $post        The current post object.
 */
$post_states = apply_filters( 'display_post_states', $post_states, $post );

if ( ! empty($post_states) ) {
    $state_count = count($post_states);
    $i = 0;
    echo ' — ';
    foreach ( $post_states as $state ) {
        ++$i;
        ( $i == $state_count ) ? $sep = '' : $sep = ', ';
        echo "<span class='post-state'>$state$sep</span>";
    }
}

似乎post_state有钩子，但是你如何设置呢？

另外，查看/wp-admin/options-reading.php:83

有没有办法在不实际修改文件的情况下修改阅读设置？

Answer 1

  

有没有办法在阅读中添加另一个静态页面选项   设置页面？

是

代码：

/**
 * Adds a custom field: "Projects page"; on the "Settings > Reading" page.
 */
add_action( 'admin_init', function () {
    $id = 'page_for_projects';
    // add_settings_field( $id, $title, $callback, $page, $section = 'default', $args = array() )
    add_settings_field( $id, 'Projects page:', 'settings_field_page_for_projects', 'reading', 'default', array(
        'label_for' => 'field-' . $id, // A unique ID for the field. Optional.
        'class'     => 'row-' . $id,   // A unique class for the TR. Optional.
    ) );
} );

/**
 * Renders the custom "Projects page" field.
 *
 * @param array $args
 */
function settings_field_page_for_projects( $args ) {
    $id = 'page_for_projects';
    wp_dropdown_pages( array(
        'name'              => $id,
        'show_option_none'  => '— Select —',
        'option_none_value' => '0',
        'selected'          => get_option( $id ),
    ) );
}

/**
 * Adds page_for_projects to the white-listed options, which are automatically
 * updated by WordPress.
 *
 * @param array $options
 */
add_filter( 'whitelist_options', function ( $options ) {
    $options['reading'][] = 'page_for_projects';

    return $options;
} );

预览：

  

另外，有没有办法在Pages中标记所选页面？

是

代码：

/**
 * Filters the post states on the "Pages" edit page. Displays "Projects Page"
 * after the post/page title, if the current page is the Projects static page.
 *
 * @param array $states
 * @param WP_Post $post
 */
add_filter( 'display_post_states', function ( $states, $post ) {
    if ( intval( get_option( 'page_for_projects' ) ) === $post->ID ) {
        $states['page_for_projects'] = __( 'Projects Page' );
    }

    return $states;
}, 10, 2 );

预览：

如果您必须或需要，您可以使用JavaScript / jQuery移动＆＃34; 项目页面＆＃34;字段以下＆＃34; 帖子页面＆＃34;在＆＃34; 您的主页显示＆＃34;列。