PHP WP_Query::set_404方法代码示例

 /**
  * {@inheritdoc}
  */
 public function set404($message = 'Not Found')
 {
     $this->_cms->trigger(AbstractEvents::EVENT_SHUTDOWN);
     $this->_cms->trigger(AbstractEvents::EVENT_SHUTDOWN . '.404', [&$message]);
     Ob::clean();
     $this->_wp_query->set_404();
     status_header(404);
     $this->noCache();
     \_default_wp_die_handler($message, $message, array('response' => 404, 'back_link' => true));
 }

 /**
  * Hijack requests for potential sitemaps and XSL files.
  *
  * @param \WP_Query $query Main query instance.
  */
 public function redirect($query)
 {
     if (!$query->is_main_query()) {
         return;
     }
     $xsl = get_query_var('xsl');
     if (!empty($xsl)) {
         $this->xsl_output($xsl);
         $this->sitemap_close();
         return;
     }
     $type = get_query_var('sitemap');
     if (empty($type)) {
         return;
     }
     $this->set_n(get_query_var('sitemap_n'));
     if (!$this->get_sitemap_from_cache($type, $this->current_page)) {
         $this->build_sitemap($type);
     }
     if ($this->bad_sitemap) {
         $query->set_404();
         status_header(404);
         return;
     }
     $this->output();
     $this->sitemap_close();
 }

/**
 * Add checks for bbPress conditions to parse_query action
 *
 * If it's a user page, WP_Query::bbp_is_single_user is set to true.
 * If it's a user edit page, WP_Query::bbp_is_single_user_edit is set to true
 * and the the 'wp-admin/includes/user.php' file is included.
 * In addition, on user/user edit pages, WP_Query::home is set to false & query
 * vars 'bbp_user_id' with the displayed user id and 'author_name' with the
 * displayed user's nicename are added.
 *
 * If it's a forum edit, WP_Query::bbp_is_forum_edit is set to true
 * If it's a topic edit, WP_Query::bbp_is_topic_edit is set to true
 * If it's a reply edit, WP_Query::bbp_is_reply_edit is set to true.
 *
 * If it's a view page, WP_Query::bbp_is_view is set to true
 * If it's a search page, WP_Query::bbp_is_search is set to true
 *
 * @since bbPress (r2688)
 *
 * @param WP_Query $posts_query
 *
 * @uses get_query_var() To get {@link WP_Query} query var
 * @uses is_email() To check if the string is an email
 * @uses get_user_by() To try to get the user by email and nicename
 * @uses get_userdata() to get the user data
 * @uses current_user_can() To check if the current user can edit the user
 * @uses is_user_member_of_blog() To check if user profile page exists
 * @uses WP_Query::set_404() To set a 404 status
 * @uses apply_filters() Calls 'enable_edit_any_user_configuration' with true
 * @uses bbp_get_view_query_args() To get the view query args
 * @uses bbp_get_forum_post_type() To get the forum post type
 * @uses bbp_get_topic_post_type() To get the topic post type
 * @uses bbp_get_reply_post_type() To get the reply post type
 * @uses remove_action() To remove the auto save post revision action
 */
function bbp_parse_query($posts_query)
{
    // Bail if $posts_query is not the main loop
    if (!$posts_query->is_main_query()) {
        return;
    }
    // Bail if filters are suppressed on this query
    if (true === $posts_query->get('suppress_filters')) {
        return;
    }
    // Bail if in admin
    if (is_admin()) {
        return;
    }
    // Get query variables
    $bbp_view = $posts_query->get(bbp_get_view_rewrite_id());
    $bbp_user = $posts_query->get(bbp_get_user_rewrite_id());
    $is_edit = $posts_query->get(bbp_get_edit_rewrite_id());
    // It is a user page - We'll also check if it is user edit
    if (!empty($bbp_user)) {
        /** Find User *********************************************************/
        // Setup the default user variable
        $the_user = false;
        // If using pretty permalinks, use the email or slug
        if (get_option('permalink_structure')) {
            // Email was passed
            if (is_email($bbp_user)) {
                $the_user = get_user_by('email', $bbp_user);
                // Try nicename
            } else {
                $the_user = get_user_by('slug', $bbp_user);
            }
        }
        // No user found by slug/email, so try the ID if it's numeric
        if (empty($the_user) && is_numeric($bbp_user)) {
            $the_user = get_user_by('id', $bbp_user);
        }
        // 404 and bail if user does not have a profile
        if (empty($the_user->ID) || !bbp_user_has_profile($the_user->ID)) {
            $posts_query->set_404();
            return;
        }
        /** User Exists *******************************************************/
        $is_favs = $posts_query->get(bbp_get_user_favorites_rewrite_id());
        $is_subs = $posts_query->get(bbp_get_user_subscriptions_rewrite_id());
        $is_topics = $posts_query->get(bbp_get_user_topics_rewrite_id());
        $is_replies = $posts_query->get(bbp_get_user_replies_rewrite_id());
        // View or edit?
        if (!empty($is_edit)) {
            // We are editing a profile
            $posts_query->bbp_is_single_user_edit = true;
            // Load the core WordPress contact methods
            if (!function_exists('_wp_get_user_contactmethods')) {
                include_once ABSPATH . 'wp-includes/registration.php';
            }
            // Load the edit_user functions
            if (!function_exists('edit_user')) {
                require_once ABSPATH . 'wp-admin/includes/user.php';
            }
            // Load the grant/revoke super admin functions
            if (is_multisite() && !function_exists('revoke_super_admin')) {
                require_once ABSPATH . 'wp-admin/includes/ms.php';
            }
            // Editing a user
            $posts_query->bbp_is_edit = true;
//.........这里部分代码省略.........

/**
 * Add checks for bbPress conditions to parse_query action
 *
 * If it's a user page, WP_Query::bbp_is_single_user is set to true.
 * If it's a user edit page, WP_Query::bbp_is_single_user_edit is set to true
 * and the the 'wp-admin/includes/user.php' file is included.
 * In addition, on user/user edit pages, WP_Query::home is set to false & query
 * vars 'bbp_user_id' with the displayed user id and 'author_name' with the
 * displayed user's nicename are added.
 *
 * If it's a forum edit, WP_Query::bbp_is_forum_edit is set to true
 * If it's a topic edit, WP_Query::bbp_is_topic_edit is set to true
 * If it's a reply edit, WP_Query::bbp_is_reply_edit is set to true.
 *
 * If it's a view page, WP_Query::bbp_is_view is set to true
 *
 * @since bbPress (r2688)
 *
 * @param WP_Query $posts_query
 *
 * @uses get_query_var() To get {@link WP_Query} query var
 * @uses is_email() To check if the string is an email
 * @uses get_user_by() To try to get the user by email and nicename
 * @uses WP_User to get the user data
 * @uses WP_Query::set_404() To set a 404 status
 * @uses current_user_can() To check if the current user can edit the user
 * @uses apply_filters() Calls 'enable_edit_any_user_configuration' with true
 * @uses bbp_get_view_query_args() To get the view query args
 * @uses bbp_get_forum_post_type() To get the forum post type
 * @uses bbp_get_topic_post_type() To get the topic post type
 * @uses bbp_get_reply_post_type() To get the reply post type
 * @uses remove_action() To remove the auto save post revision action
 */
function bbp_parse_query($posts_query)
{
    // Bail if $posts_query is not the main loop
    if (!$posts_query->is_main_query()) {
        return;
    }
    // Bail if filters are suppressed on this query
    if (true == $posts_query->get('suppress_filters')) {
        return;
    }
    // Bail if in admin
    if (is_admin()) {
        return;
    }
    // Get query variables
    $bbp_user = $posts_query->get(bbp_get_user_rewrite_id());
    $bbp_view = $posts_query->get(bbp_get_view_rewrite_id());
    $is_edit = $posts_query->get(bbp_get_edit_rewrite_id());
    // It is a user page - We'll also check if it is user edit
    if (!empty($bbp_user)) {
        // Not a user_id so try email and slug
        if (!is_numeric($bbp_user)) {
            // Email was passed
            if (is_email($bbp_user)) {
                $bbp_user = get_user_by('email', $bbp_user);
                // Try nicename
            } else {
                $bbp_user = get_user_by('slug', $bbp_user);
            }
            // If we were successful, set to ID
            if (is_object($bbp_user)) {
                $bbp_user = $bbp_user->ID;
            }
        }
        // Create new user
        $user = new WP_User($bbp_user);
        // Bail if no user
        if (!isset($user) || empty($user) || empty($user->ID)) {
            $posts_query->set_404();
            return;
        }
        /** User Exists *******************************************************/
        // View or edit?
        if (!empty($is_edit)) {
            // We are editing a profile
            $posts_query->bbp_is_single_user_edit = true;
            // Load the core WordPress contact methods
            if (!function_exists('_wp_get_user_contactmethods')) {
                include_once ABSPATH . 'wp-includes/registration.php';
            }
            // Load the edit_user functions
            if (!function_exists('edit_user')) {
                require_once ABSPATH . 'wp-admin/includes/user.php';
            }
            // Editing a user
            $posts_query->bbp_is_edit = true;
            // We are viewing a profile
        } else {
            $posts_query->bbp_is_single_user = true;
        }
        // Make sure 404 is not set
        $posts_query->is_404 = false;
        // Correct is_home variable
        $posts_query->is_home = false;
        // Set bbp_user_id for future reference
        $posts_query->set('bbp_user_id', $user->ID);
        // Set author_name as current user's nicename to get correct posts
//.........这里部分代码省略.........