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<?php |
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use Automattic\Jetpack\Sync\Settings; |
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class Jetpack_RelatedPosts { |
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const VERSION = '20190204'; |
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const SHORTCODE = 'jetpack-related-posts'; |
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private static $instance = null; |
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private static $instance_raw = null; |
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/** |
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* Creates and returns a static instance of Jetpack_RelatedPosts. |
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* |
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* @return Jetpack_RelatedPosts |
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*/ |
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public static function init() { |
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if ( ! self::$instance ) { |
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if ( class_exists('WPCOM_RelatedPosts') && method_exists( 'WPCOM_RelatedPosts', 'init' ) ) { |
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self::$instance = WPCOM_RelatedPosts::init(); |
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} else { |
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self::$instance = new Jetpack_RelatedPosts(); |
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} |
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} |
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return self::$instance; |
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} |
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/** |
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* Creates and returns a static instance of Jetpack_RelatedPosts_Raw. |
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* |
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* @return Jetpack_RelatedPosts |
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*/ |
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public static function init_raw() { |
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if ( ! self::$instance_raw ) { |
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if ( class_exists('WPCOM_RelatedPosts') && method_exists( 'WPCOM_RelatedPosts', 'init_raw' ) ) { |
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self::$instance_raw = WPCOM_RelatedPosts::init_raw(); |
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} else { |
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self::$instance_raw = new Jetpack_RelatedPosts_Raw(); |
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} |
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} |
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return self::$instance_raw; |
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} |
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protected $_options; |
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protected $_allow_feature_toggle; |
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protected $_blog_charset; |
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protected $_convert_charset; |
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protected $_previous_post_id; |
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protected $_found_shortcode = false; |
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/** |
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* Constructor for Jetpack_RelatedPosts. |
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* |
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* @uses get_option, add_action, apply_filters |
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* @return null |
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*/ |
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public function __construct() { |
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$this->_blog_charset = get_option( 'blog_charset' ); |
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$this->_convert_charset = ( function_exists( 'iconv' ) && ! preg_match( '/^utf\-?8$/i', $this->_blog_charset ) ); |
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add_action( 'admin_init', array( $this, 'action_admin_init' ) ); |
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add_action( 'wp', array( $this, 'action_frontend_init' ) ); |
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if ( ! class_exists( 'Jetpack_Media_Summary' ) ) { |
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jetpack_require_lib( 'class.media-summary' ); |
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} |
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// Add Related Posts to the REST API Post response. |
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add_action( 'rest_api_init', array( $this, 'rest_register_related_posts' ) ); |
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jetpack_register_block( |
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'jetpack/related-posts', |
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array( |
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'render_callback' => array( $this, 'render_block' ), |
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) |
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); |
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} |
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protected function get_blog_id() { |
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return Jetpack_Options::get_option( 'id' ); |
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} |
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/** |
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* ================= |
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* ACTIONS & FILTERS |
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* ================= |
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*/ |
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/** |
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* Add a checkbox field to Settings > Reading for enabling related posts. |
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* |
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* @action admin_init |
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* @uses add_settings_field, __, register_setting, add_action |
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* @return null |
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*/ |
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public function action_admin_init() { |
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// Add the setting field [jetpack_relatedposts] and place it in Settings > Reading |
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add_settings_field( 'jetpack_relatedposts', '<span id="jetpack_relatedposts">' . __( 'Related posts', 'jetpack' ) . '</span>', array( $this, 'print_setting_html' ), 'reading' ); |
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register_setting( 'reading', 'jetpack_relatedposts', array( $this, 'parse_options' ) ); |
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add_action('admin_head', array( $this, 'print_setting_head' ) ); |
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if( 'options-reading.php' == $GLOBALS['pagenow'] ) { |
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// Enqueue style for live preview on the reading settings page |
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$this->_enqueue_assets( false, true ); |
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} |
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} |
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/** |
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* Load related posts assets if it's a elegiable front end page or execute search and return JSON if it's an endpoint request. |
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* |
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* @global $_GET |
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* @action wp |
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* @uses add_shortcode, get_the_ID |
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* @returns null |
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*/ |
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public function action_frontend_init() { |
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// Add a shortcode handler that outputs nothing, this gets overridden later if we can display related content |
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add_shortcode( self::SHORTCODE, array( $this, 'get_target_html_unsupported' ) ); |
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if ( ! $this->_enabled_for_request() ) |
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return; |
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if ( isset( $_GET['relatedposts'] ) ) { |
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$excludes = $this->parse_numeric_get_arg( 'relatedposts_exclude' ); |
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$this->_action_frontend_init_ajax( $excludes ); |
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} else { |
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if ( isset( $_GET['relatedposts_hit'], $_GET['relatedposts_origin'], $_GET['relatedposts_position'] ) ) { |
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$this->_log_click( $_GET['relatedposts_origin'], get_the_ID(), $_GET['relatedposts_position'] ); |
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$this->_previous_post_id = (int) $_GET['relatedposts_origin']; |
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} |
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$this->_action_frontend_init_page(); |
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} |
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} |
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/** |
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* Render insertion point. |
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* |
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* @since 4.2.0 |
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* |
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* @return string |
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*/ |
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public function get_headline() { |
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$options = $this->get_options(); |
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if ( $options['show_headline'] ) { |
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$headline = sprintf( |
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/** This filter is already documented in modules/sharedaddy/sharing-service.php */ |
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apply_filters( 'jetpack_sharing_headline_html', '<h3 class="jp-relatedposts-headline"><em>%s</em></h3>', esc_html( $options['headline'] ), 'related-posts' ), |
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esc_html( $options['headline'] ) |
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); |
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} else { |
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$headline = ''; |
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} |
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return $headline; |
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} |
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/** |
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* Adds a target to the post content to load related posts into if a shortcode for it did not already exist. |
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* Will skip adding the target if the post content contains a Related Posts block. |
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* |
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* @filter the_content |
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* @param string $content |
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* @returns string |
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*/ |
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public function filter_add_target_to_dom( $content ) { |
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if ( has_block( 'jetpack/related-posts', $content ) ) { |
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return $content; |
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} |
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if ( ! $this->_found_shortcode ) { |
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$content .= "\n" . $this->get_target_html(); |
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} |
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return $content; |
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} |
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/** |
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* Looks for our shortcode on the unfiltered content, this has to execute early. |
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* |
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* @filter the_content |
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* @param string $content |
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* @uses has_shortcode |
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* @returns string |
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*/ |
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public function test_for_shortcode( $content ) { |
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$this->_found_shortcode = has_shortcode( $content, self::SHORTCODE ); |
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return $content; |
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} |
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/** |
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* Returns the HTML for the related posts section. |
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* |
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* @uses esc_html__, apply_filters |
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* @returns string |
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*/ |
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public function get_target_html() { |
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if ( Settings::is_syncing() ) { |
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return ''; |
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} |
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/** |
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* Filter the Related Posts headline. |
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* |
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* @module related-posts |
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* |
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* @since 3.0.0 |
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* |
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* @param string $headline Related Posts heading. |
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*/ |
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$headline = apply_filters( 'jetpack_relatedposts_filter_headline', $this->get_headline() ); |
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if ( $this->_previous_post_id ) { |
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$exclude = "data-exclude='{$this->_previous_post_id}'"; |
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} else { |
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$exclude = ""; |
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} |
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return <<<EOT |
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<div id='jp-relatedposts' class='jp-relatedposts' $exclude> |
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$headline |
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</div> |
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EOT; |
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} |
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/** |
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* Returns the HTML for the related posts section if it's running in the loop or other instances where we don't support related posts. |
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* |
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* @returns string |
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*/ |
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public function get_target_html_unsupported() { |
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if ( Settings::is_syncing() ) { |
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return ''; |
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} |
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return "\n\n<!-- Jetpack Related Posts is not supported in this context. -->\n\n"; |
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} |
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/** |
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* =============== |
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* GUTENBERG BLOCK |
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* =============== |
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*/ |
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/** |
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* Echoes out items for the Gutenberg block |
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* |
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* @param array $related_post The post oject. |
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* @param array $block_attributes The block attributes. |
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*/ |
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public function render_block_item( $related_post, $block_attributes ) { |
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$instance_id = 'related-posts-item-' . uniqid(); |
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$label_id = $instance_id . '-label'; |
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$item_markup = sprintf( |
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'<ul id="%1$s" aria-labelledby="%2$s" class="jp-related-posts-i2__post" role="menuitem">', |
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esc_attr( $instance_id ), |
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esc_attr( $label_id ) |
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); |
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$item_markup .= sprintf( |
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'<li class="jp-related-posts-i2__post-link"><a id="%1$s" href="%2$s" rel="%4$s">%3$s</a></li>', |
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esc_attr( $label_id ), |
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esc_url( $related_post['url'] ), |
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esc_attr( $related_post['title'] ), |
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esc_attr( $related_post['rel'] ) |
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); |
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if ( ! empty( $block_attributes['show_thumbnails'] ) && ! empty( $related_post['img']['src'] ) ) { |
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$img_link = sprintf( |
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'<li class="jp-related-posts-i2__post-img-link"><a href="%1$s" rel="%2$s"><img src="%3$s" width="%4$s" alt="%5$s" /></a></li>', |
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esc_url( $related_post['url'] ), |
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esc_attr( $related_post['rel'] ), |
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esc_url( $related_post['img']['src'] ), |
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esc_attr( $related_post['img']['width'] ), |
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esc_attr( $related_post['img']['alt_text'] ) |
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); |
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$item_markup .= $img_link; |
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} |
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if ( $block_attributes['show_date'] ) { |
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$date_tag = sprintf( |
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'<li class="jp-related-posts-i2__post-date">%1$s</li>', |
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esc_html( $related_post['date'] ) |
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); |
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$item_markup .= $date_tag; |
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} |
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if ( ( $block_attributes['show_context'] ) && ! empty( $related_post['context'] ) ) { |
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$context_tag = sprintf( |
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'<li class="jp-related-posts-i2__post-context">%1$s</li>', |
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esc_html( $related_post['context'] ) |
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); |
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$item_markup .= $context_tag; |
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} |
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$item_markup .= '</ul>'; |
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return $item_markup; |
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307
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} |
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308
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309
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/** |
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310
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* Render a related posts row. |
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311
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* |
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312
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* @param array $posts The posts to render into the row. |
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313
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* @param array $block_attributes Block attributes. |
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314
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*/ |
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315
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public function render_block_row( $posts, $block_attributes ) { |
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316
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$rows_markup = ''; |
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317
|
|
|
foreach ( $posts as $post ) { |
|
318
|
|
|
$rows_markup .= $this->render_block_item( $post, $block_attributes ); |
|
319
|
|
|
} |
|
320
|
|
|
return sprintf( |
|
321
|
|
|
'<div class="jp-related-posts-i2__row" data-post-count="%1$s">%2$s</div>', |
|
322
|
|
|
count( $posts ), |
|
323
|
|
|
$rows_markup |
|
324
|
|
|
); |
|
325
|
|
|
} |
|
326
|
|
|
|
|
327
|
|
|
/** |
|
328
|
|
|
* Render the related posts markup. |
|
329
|
|
|
* |
|
330
|
|
|
* @param array $attributes Block attributes. |
|
331
|
|
|
* @return string |
|
332
|
|
|
*/ |
|
333
|
|
|
public function render_block( $attributes ) { |
|
334
|
|
|
$block_attributes = array( |
|
335
|
|
|
'show_thumbnails' => isset( $attributes['displayThumbnails'] ) && $attributes['displayThumbnails'], |
|
336
|
|
|
'show_date' => isset( $attributes['displayDate'] ) ? (bool) $attributes['displayDate'] : true, |
|
337
|
|
|
'show_context' => isset( $attributes['displayContext'] ) && $attributes['displayContext'], |
|
338
|
|
|
'layout' => isset( $attributes['postLayout'] ) && 'list' === $attributes['postLayout'] ? $attributes['postLayout'] : 'grid', |
|
339
|
|
|
'size' => ! empty( $attributes['postsToShow'] ) ? absint( $attributes['postsToShow'] ) : 3, |
|
340
|
|
|
); |
|
341
|
|
|
|
|
342
|
|
|
$excludes = $this->parse_numeric_get_arg( 'relatedposts_origin' ); |
|
343
|
|
|
$related_posts = $this->get_for_post_id( |
|
344
|
|
|
get_the_ID(), |
|
345
|
|
|
array( |
|
346
|
|
|
'size' => $block_attributes['size'], |
|
347
|
|
|
'exclude_post_ids' => $excludes, |
|
348
|
|
|
) |
|
349
|
|
|
); |
|
350
|
|
|
|
|
351
|
|
|
$display_lower_row = $block_attributes['size'] > 3; |
|
352
|
|
|
|
|
353
|
|
|
if ( empty( $related_posts ) ) { |
|
354
|
|
|
return ''; |
|
355
|
|
|
} |
|
356
|
|
|
|
|
357
|
|
|
switch ( count( $related_posts ) ) { |
|
358
|
|
|
case 2: |
|
359
|
|
|
case 4: |
|
360
|
|
|
case 5: |
|
361
|
|
|
$top_row_end = 2; |
|
362
|
|
|
break; |
|
363
|
|
|
|
|
364
|
|
|
default: |
|
365
|
|
|
$top_row_end = 3; |
|
366
|
|
|
break; |
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
$upper_row_posts = array_slice( $related_posts, 0, $top_row_end ); |
|
370
|
|
|
$lower_row_posts = array_slice( $related_posts, $top_row_end ); |
|
371
|
|
|
|
|
372
|
|
|
$rows_markup = $this->render_block_row( $upper_row_posts, $block_attributes ); |
|
373
|
|
|
if ( $display_lower_row ) { |
|
374
|
|
|
$rows_markup .= $this->render_block_row( $lower_row_posts, $block_attributes ); |
|
375
|
|
|
} |
|
376
|
|
|
|
|
377
|
|
|
$target_to_dom_priority = has_filter( |
|
378
|
|
|
'the_content', |
|
379
|
|
|
array( $this, 'filter_add_target_to_dom' ) |
|
380
|
|
|
); |
|
381
|
|
|
remove_filter( |
|
382
|
|
|
'the_content', |
|
383
|
|
|
array( $this, 'filter_add_target_to_dom' ), |
|
384
|
|
|
$target_to_dom_priority |
|
385
|
|
|
); |
|
386
|
|
|
|
|
387
|
|
|
/* |
|
388
|
|
|
* Below is a hack to get the block content to render correctly. |
|
389
|
|
|
* |
|
390
|
|
|
* This functionality should be covered in /inc/blocks.php but due to an error, |
|
391
|
|
|
* this has not been fixed as of this writing. |
|
392
|
|
|
* |
|
393
|
|
|
* Alda has submitted a patch to Core in order to have this issue fixed at |
|
394
|
|
|
* https://core.trac.wordpress.org/ticket/45495 and |
|
395
|
|
|
* made it into WordPress 5.2. |
|
396
|
|
|
* |
|
397
|
|
|
* @todo update when WP 5.2 is the minimum support version. |
|
398
|
|
|
*/ |
|
399
|
|
|
$priority = has_filter( 'the_content', 'wpautop' ); |
|
400
|
|
|
remove_filter( 'the_content', 'wpautop', $priority ); |
|
401
|
|
|
add_filter( 'the_content', '_restore_wpautop_hook', $priority + 1 ); |
|
402
|
|
|
|
|
403
|
|
|
return sprintf( |
|
404
|
|
|
'<nav class="jp-relatedposts-i2" data-layout="%1$s">%2$s</nav>', |
|
405
|
|
|
esc_attr( $block_attributes['layout'] ), |
|
406
|
|
|
$rows_markup |
|
407
|
|
|
); |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
|
|
/** |
|
411
|
|
|
* ======================== |
|
412
|
|
|
* PUBLIC UTILITY FUNCTIONS |
|
413
|
|
|
* ======================== |
|
414
|
|
|
*/ |
|
415
|
|
|
|
|
416
|
|
|
/** |
|
417
|
|
|
* Parse a numeric GET variable to an array of values. |
|
418
|
|
|
* |
|
419
|
|
|
* @since 6.9.0 |
|
420
|
|
|
* |
|
421
|
|
|
* @uses absint |
|
422
|
|
|
* |
|
423
|
|
|
* @param string $arg Name of the GET variable |
|
424
|
|
|
* @return array $result Parsed value(s) |
|
425
|
|
|
*/ |
|
426
|
|
|
public function parse_numeric_get_arg( $arg ) { |
|
427
|
|
|
$result = array(); |
|
428
|
|
|
|
|
429
|
|
|
if ( isset( $_GET[ $arg ] ) ) { |
|
430
|
|
|
if ( is_string( $_GET[ $arg ] ) ) { |
|
431
|
|
|
$result = explode( ',', $_GET[ $arg ] ); |
|
432
|
|
|
} elseif ( is_array( $_GET[ $arg ] ) ) { |
|
433
|
|
|
$result = array_values( $_GET[ $arg ] ); |
|
434
|
|
|
} |
|
435
|
|
|
|
|
436
|
|
|
$result = array_unique( array_filter( array_map( 'absint', $result ) ) ); |
|
437
|
|
|
} |
|
438
|
|
|
|
|
439
|
|
|
return $result; |
|
440
|
|
|
} |
|
441
|
|
|
|
|
442
|
|
|
/** |
|
443
|
|
|
* Gets options set for Jetpack_RelatedPosts and merge with defaults. |
|
444
|
|
|
* |
|
445
|
|
|
* @uses Jetpack_Options::get_option, apply_filters |
|
446
|
|
|
* @return array |
|
447
|
|
|
*/ |
|
448
|
|
|
public function get_options() { |
|
449
|
|
|
if ( null === $this->_options ) { |
|
450
|
|
|
$this->_options = Jetpack_Options::get_option( 'relatedposts', array() ); |
|
451
|
|
|
if ( ! is_array( $this->_options ) ) |
|
452
|
|
|
$this->_options = array(); |
|
453
|
|
|
if ( ! isset( $this->_options['enabled'] ) ) |
|
454
|
|
|
$this->_options['enabled'] = true; |
|
455
|
|
|
if ( ! isset( $this->_options['show_headline'] ) ) |
|
456
|
|
|
$this->_options['show_headline'] = true; |
|
457
|
|
|
if ( ! isset( $this->_options['show_thumbnails'] ) ) |
|
458
|
|
|
$this->_options['show_thumbnails'] = false; |
|
459
|
|
|
if ( ! isset( $this->_options['show_date'] ) ) { |
|
460
|
|
|
$this->_options['show_date'] = true; |
|
461
|
|
|
} |
|
462
|
|
|
if ( ! isset( $this->_options['show_context'] ) ) { |
|
463
|
|
|
$this->_options['show_context'] = true; |
|
464
|
|
|
} |
|
465
|
|
|
if ( ! isset( $this->_options['layout'] ) ) { |
|
466
|
|
|
$this->_options['layout'] = 'grid'; |
|
467
|
|
|
} |
|
468
|
|
|
if ( ! isset( $this->_options['headline'] ) ) { |
|
469
|
|
|
$this->_options['headline'] = esc_html__( 'Related', 'jetpack' ); |
|
470
|
|
|
} |
|
471
|
|
|
if ( empty( $this->_options['size'] ) || (int)$this->_options['size'] < 1 ) |
|
472
|
|
|
$this->_options['size'] = 3; |
|
473
|
|
|
|
|
474
|
|
|
/** |
|
475
|
|
|
* Filter Related Posts basic options. |
|
476
|
|
|
* |
|
477
|
|
|
* @module related-posts |
|
478
|
|
|
* |
|
479
|
|
|
* @since 2.8.0 |
|
480
|
|
|
* |
|
481
|
|
|
* @param array $this->_options Array of basic Related Posts options. |
|
482
|
|
|
*/ |
|
483
|
|
|
$this->_options = apply_filters( 'jetpack_relatedposts_filter_options', $this->_options ); |
|
484
|
|
|
} |
|
485
|
|
|
|
|
486
|
|
|
return $this->_options; |
|
487
|
|
|
} |
|
488
|
|
|
|
|
489
|
|
|
public function get_option( $option_name ) { |
|
490
|
|
|
$options = $this->get_options(); |
|
491
|
|
|
|
|
492
|
|
|
if ( isset( $options[ $option_name ] ) ) { |
|
493
|
|
|
return $options[ $option_name ]; |
|
494
|
|
|
} |
|
495
|
|
|
|
|
496
|
|
|
return false; |
|
497
|
|
|
} |
|
498
|
|
|
|
|
499
|
|
|
/** |
|
500
|
|
|
* Parses input and returns normalized options array. |
|
501
|
|
|
* |
|
502
|
|
|
* @param array $input |
|
503
|
|
|
* @uses self::get_options |
|
504
|
|
|
* @return array |
|
505
|
|
|
*/ |
|
506
|
|
|
public function parse_options( $input ) { |
|
507
|
|
|
$current = $this->get_options(); |
|
508
|
|
|
|
|
509
|
|
|
if ( !is_array( $input ) ) |
|
510
|
|
|
$input = array(); |
|
511
|
|
|
|
|
512
|
|
|
if ( |
|
513
|
|
|
! isset( $input['enabled'] ) |
|
514
|
|
|
|| isset( $input['show_date'] ) |
|
515
|
|
|
|| isset( $input['show_context'] ) |
|
516
|
|
|
|| isset( $input['layout'] ) |
|
517
|
|
|
|| isset( $input['headline'] ) |
|
518
|
|
|
) { |
|
519
|
|
|
$input['enabled'] = '1'; |
|
520
|
|
|
} |
|
521
|
|
|
|
|
522
|
|
|
if ( '1' == $input['enabled'] ) { |
|
523
|
|
|
$current['enabled'] = true; |
|
524
|
|
|
$current['show_headline'] = ( isset( $input['show_headline'] ) && '1' == $input['show_headline'] ); |
|
525
|
|
|
$current['show_thumbnails'] = ( isset( $input['show_thumbnails'] ) && '1' == $input['show_thumbnails'] ); |
|
526
|
|
|
$current['show_date'] = ( isset( $input['show_date'] ) && '1' == $input['show_date'] ); |
|
527
|
|
|
$current['show_context'] = ( isset( $input['show_context'] ) && '1' == $input['show_context'] ); |
|
528
|
|
|
$current['layout'] = isset( $input['layout'] ) && in_array( $input['layout'], array( 'grid', 'list' ), true ) ? $input['layout'] : 'grid'; |
|
529
|
|
|
$current['headline'] = isset( $input['headline'] ) ? $input['headline'] : esc_html__( 'Related', 'jetpack' ); |
|
530
|
|
|
} else { |
|
531
|
|
|
$current['enabled'] = false; |
|
532
|
|
|
} |
|
533
|
|
|
|
|
534
|
|
|
if ( isset( $input['size'] ) && (int)$input['size'] > 0 ) |
|
535
|
|
|
$current['size'] = (int)$input['size']; |
|
536
|
|
|
else |
|
537
|
|
|
$current['size'] = null; |
|
538
|
|
|
|
|
539
|
|
|
return $current; |
|
540
|
|
|
} |
|
541
|
|
|
|
|
542
|
|
|
/** |
|
543
|
|
|
* HTML for admin settings page. |
|
544
|
|
|
* |
|
545
|
|
|
* @uses self::get_options, checked, esc_html__ |
|
546
|
|
|
* @returns null |
|
547
|
|
|
*/ |
|
548
|
|
|
public function print_setting_html() { |
|
549
|
|
|
$options = $this->get_options(); |
|
550
|
|
|
|
|
551
|
|
|
$ui_settings_template = <<<EOT |
|
552
|
|
|
<p class="description">%s</p> |
|
553
|
|
|
<ul id="settings-reading-relatedposts-customize"> |
|
554
|
|
|
<li> |
|
555
|
|
|
<label><input name="jetpack_relatedposts[show_headline]" type="checkbox" value="1" %s /> %s</label> |
|
556
|
|
|
</li> |
|
557
|
|
|
<li> |
|
558
|
|
|
<label><input name="jetpack_relatedposts[show_thumbnails]" type="checkbox" value="1" %s /> %s</label> |
|
559
|
|
|
</li> |
|
560
|
|
|
<li> |
|
561
|
|
|
<label><input name="jetpack_relatedposts[show_date]" type="checkbox" value="1" %s /> %s</label> |
|
562
|
|
|
</li> |
|
563
|
|
|
<li> |
|
564
|
|
|
<label><input name="jetpack_relatedposts[show_context]" type="checkbox" value="1" %s /> %s</label> |
|
565
|
|
|
</li> |
|
566
|
|
|
</ul> |
|
567
|
|
|
<div id='settings-reading-relatedposts-preview'> |
|
568
|
|
|
%s |
|
569
|
|
|
<div id="jp-relatedposts" class="jp-relatedposts"></div> |
|
570
|
|
|
</div> |
|
571
|
|
|
EOT; |
|
572
|
|
|
$ui_settings = sprintf( |
|
573
|
|
|
$ui_settings_template, |
|
574
|
|
|
esc_html__( 'The following settings will impact all related posts on your site, except for those you created via the block editor:', 'jetpack' ), |
|
575
|
|
|
checked( $options['show_headline'], true, false ), |
|
576
|
|
|
esc_html__( 'Highlight related content with a heading', 'jetpack' ), |
|
577
|
|
|
checked( $options['show_thumbnails'], true, false ), |
|
578
|
|
|
esc_html__( 'Show a thumbnail image where available', 'jetpack' ), |
|
579
|
|
|
checked( $options['show_date'], true, false ), |
|
580
|
|
|
esc_html__( 'Show entry date', 'jetpack' ), |
|
581
|
|
|
checked( $options['show_context'], true, false ), |
|
582
|
|
|
esc_html__( 'Show context (category or tag)', 'jetpack' ), |
|
583
|
|
|
esc_html__( 'Preview:', 'jetpack' ) |
|
584
|
|
|
); |
|
585
|
|
|
|
|
586
|
|
|
if ( !$this->_allow_feature_toggle() ) { |
|
587
|
|
|
$template = <<<EOT |
|
588
|
|
|
<input type="hidden" name="jetpack_relatedposts[enabled]" value="1" /> |
|
589
|
|
|
%s |
|
590
|
|
|
EOT; |
|
591
|
|
|
printf( |
|
592
|
|
|
$template, |
|
593
|
|
|
$ui_settings |
|
594
|
|
|
); |
|
595
|
|
|
} else { |
|
596
|
|
|
$template = <<<EOT |
|
597
|
|
|
<ul id="settings-reading-relatedposts"> |
|
598
|
|
|
<li> |
|
599
|
|
|
<label><input type="radio" name="jetpack_relatedposts[enabled]" value="0" class="tog" %s /> %s</label> |
|
600
|
|
|
</li> |
|
601
|
|
|
<li> |
|
602
|
|
|
<label><input type="radio" name="jetpack_relatedposts[enabled]" value="1" class="tog" %s /> %s</label> |
|
603
|
|
|
%s |
|
604
|
|
|
</li> |
|
605
|
|
|
</ul> |
|
606
|
|
|
EOT; |
|
607
|
|
|
printf( |
|
608
|
|
|
$template, |
|
609
|
|
|
checked( $options['enabled'], false, false ), |
|
610
|
|
|
esc_html__( 'Hide related content after posts', 'jetpack' ), |
|
611
|
|
|
checked( $options['enabled'], true, false ), |
|
612
|
|
|
esc_html__( 'Show related content after posts', 'jetpack' ), |
|
613
|
|
|
$ui_settings |
|
614
|
|
|
); |
|
615
|
|
|
} |
|
616
|
|
|
} |
|
617
|
|
|
|
|
618
|
|
|
/** |
|
619
|
|
|
* Head JS/CSS for admin settings page. |
|
620
|
|
|
* |
|
621
|
|
|
* @uses esc_html__ |
|
622
|
|
|
* @returns null |
|
623
|
|
|
*/ |
|
624
|
|
|
public function print_setting_head() { |
|
625
|
|
|
|
|
626
|
|
|
// only dislay the Related Posts JavaScript on the Reading Settings Admin Page |
|
627
|
|
|
$current_screen = get_current_screen(); |
|
628
|
|
|
|
|
629
|
|
|
if ( is_null( $current_screen ) ) { |
|
630
|
|
|
return; |
|
631
|
|
|
} |
|
632
|
|
|
|
|
633
|
|
|
if( 'options-reading' != $current_screen->id ) |
|
634
|
|
|
return; |
|
635
|
|
|
|
|
636
|
|
|
$related_headline = sprintf( |
|
637
|
|
|
'<h3 class="jp-relatedposts-headline"><em>%s</em></h3>', |
|
638
|
|
|
esc_html__( 'Related', 'jetpack' ) |
|
639
|
|
|
); |
|
640
|
|
|
|
|
641
|
|
|
$href_params = 'class="jp-relatedposts-post-a" href="#jetpack_relatedposts" rel="nofollow" data-origin="0" data-position="0"'; |
|
642
|
|
|
$related_with_images = <<<EOT |
|
643
|
|
|
<div class="jp-relatedposts-items jp-relatedposts-items-visual"> |
|
644
|
|
|
<div class="jp-relatedposts-post jp-relatedposts-post0 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image"> |
|
645
|
|
|
<a $href_params> |
|
646
|
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/cat-blog.png" width="350" alt="Big iPhone/iPad Update Now Available" scale="0"> |
|
647
|
|
|
</a> |
|
648
|
|
|
<h4 class="jp-relatedposts-post-title"> |
|
649
|
|
|
<a $href_params>Big iPhone/iPad Update Now Available</a> |
|
650
|
|
|
</h4> |
|
651
|
|
|
<p class="jp-relatedposts-post-excerpt">Big iPhone/iPad Update Now Available</p> |
|
652
|
|
|
<p class="jp-relatedposts-post-context">In "Mobile"</p> |
|
653
|
|
|
</div> |
|
654
|
|
|
<div class="jp-relatedposts-post jp-relatedposts-post1 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image"> |
|
655
|
|
|
<a $href_params> |
|
656
|
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/devices.jpg" width="350" alt="The WordPress for Android App Gets a Big Facelift" scale="0"> |
|
657
|
|
|
</a> |
|
658
|
|
|
<h4 class="jp-relatedposts-post-title"> |
|
659
|
|
|
<a $href_params>The WordPress for Android App Gets a Big Facelift</a> |
|
660
|
|
|
</h4> |
|
661
|
|
|
<p class="jp-relatedposts-post-excerpt">The WordPress for Android App Gets a Big Facelift</p> |
|
662
|
|
|
<p class="jp-relatedposts-post-context">In "Mobile"</p> |
|
663
|
|
|
</div> |
|
664
|
|
|
<div class="jp-relatedposts-post jp-relatedposts-post2 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image"> |
|
665
|
|
|
<a $href_params> |
|
666
|
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg" width="350" alt="Upgrade Focus: VideoPress For Weddings" scale="0"> |
|
667
|
|
|
</a> |
|
668
|
|
|
<h4 class="jp-relatedposts-post-title"> |
|
669
|
|
|
<a $href_params>Upgrade Focus: VideoPress For Weddings</a> |
|
670
|
|
|
</h4> |
|
671
|
|
|
<p class="jp-relatedposts-post-excerpt">Upgrade Focus: VideoPress For Weddings</p> |
|
672
|
|
|
<p class="jp-relatedposts-post-context">In "Upgrade"</p> |
|
673
|
|
|
</div> |
|
674
|
|
|
</div> |
|
675
|
|
|
EOT; |
|
676
|
|
|
$related_with_images = str_replace( "\n", '', $related_with_images ); |
|
677
|
|
|
$related_without_images = <<<EOT |
|
678
|
|
|
<div class="jp-relatedposts-items jp-relatedposts-items-minimal"> |
|
679
|
|
|
<p class="jp-relatedposts-post jp-relatedposts-post0" data-post-id="0" data-post-format="image"> |
|
680
|
|
|
<span class="jp-relatedposts-post-title"><a $href_params>Big iPhone/iPad Update Now Available</a></span> |
|
681
|
|
|
<span class="jp-relatedposts-post-context">In "Mobile"</span> |
|
682
|
|
|
</p> |
|
683
|
|
|
<p class="jp-relatedposts-post jp-relatedposts-post1" data-post-id="0" data-post-format="image"> |
|
684
|
|
|
<span class="jp-relatedposts-post-title"><a $href_params>The WordPress for Android App Gets a Big Facelift</a></span> |
|
685
|
|
|
<span class="jp-relatedposts-post-context">In "Mobile"</span> |
|
686
|
|
|
</p> |
|
687
|
|
|
<p class="jp-relatedposts-post jp-relatedposts-post2" data-post-id="0" data-post-format="image"> |
|
688
|
|
|
<span class="jp-relatedposts-post-title"><a $href_params>Upgrade Focus: VideoPress For Weddings</a></span> |
|
689
|
|
|
<span class="jp-relatedposts-post-context">In "Upgrade"</span> |
|
690
|
|
|
</p> |
|
691
|
|
|
</div> |
|
692
|
|
|
EOT; |
|
693
|
|
|
$related_without_images = str_replace( "\n", '', $related_without_images ); |
|
694
|
|
|
|
|
695
|
|
|
if ( $this->_allow_feature_toggle() ) { |
|
696
|
|
|
$extra_css = '#settings-reading-relatedposts-customize { padding-left:2em; margin-top:.5em; }'; |
|
697
|
|
|
} else { |
|
698
|
|
|
$extra_css = ''; |
|
699
|
|
|
} |
|
700
|
|
|
|
|
701
|
|
|
echo <<<EOT |
|
702
|
|
|
<style type="text/css"> |
|
703
|
|
|
#settings-reading-relatedposts .disabled { opacity:.5; filter:Alpha(opacity=50); } |
|
704
|
|
|
#settings-reading-relatedposts-preview .jp-relatedposts { background:#fff; padding:.5em; width:75%; } |
|
705
|
|
|
$extra_css |
|
706
|
|
|
</style> |
|
707
|
|
|
<script type="text/javascript"> |
|
708
|
|
|
jQuery( document ).ready( function($) { |
|
709
|
|
|
var update_ui = function() { |
|
710
|
|
|
var is_enabled = true; |
|
711
|
|
|
if ( 'radio' == $( 'input[name="jetpack_relatedposts[enabled]"]' ).attr('type') ) { |
|
712
|
|
|
if ( '0' == $( 'input[name="jetpack_relatedposts[enabled]"]:checked' ).val() ) { |
|
713
|
|
|
is_enabled = false; |
|
714
|
|
|
} |
|
715
|
|
|
} |
|
716
|
|
|
if ( is_enabled ) { |
|
717
|
|
|
$( '#settings-reading-relatedposts-customize' ) |
|
718
|
|
|
.removeClass( 'disabled' ) |
|
719
|
|
|
.find( 'input' ) |
|
720
|
|
|
.attr( 'disabled', false ); |
|
721
|
|
|
$( '#settings-reading-relatedposts-preview' ) |
|
722
|
|
|
.removeClass( 'disabled' ); |
|
723
|
|
|
} else { |
|
724
|
|
|
$( '#settings-reading-relatedposts-customize' ) |
|
725
|
|
|
.addClass( 'disabled' ) |
|
726
|
|
|
.find( 'input' ) |
|
727
|
|
|
.attr( 'disabled', true ); |
|
728
|
|
|
$( '#settings-reading-relatedposts-preview' ) |
|
729
|
|
|
.addClass( 'disabled' ); |
|
730
|
|
|
} |
|
731
|
|
|
}; |
|
732
|
|
|
|
|
733
|
|
|
var update_preview = function() { |
|
734
|
|
|
var html = ''; |
|
735
|
|
|
if ( $( 'input[name="jetpack_relatedposts[show_headline]"]:checked' ).length ) { |
|
736
|
|
|
html += '$related_headline'; |
|
737
|
|
|
} |
|
738
|
|
|
if ( $( 'input[name="jetpack_relatedposts[show_thumbnails]"]:checked' ).length ) { |
|
739
|
|
|
html += '$related_with_images'; |
|
740
|
|
|
} else { |
|
741
|
|
|
html += '$related_without_images'; |
|
742
|
|
|
} |
|
743
|
|
|
$( '#settings-reading-relatedposts-preview .jp-relatedposts' ).html( html ); |
|
744
|
|
|
if ( $( 'input[name="jetpack_relatedposts[show_date]"]:checked' ).length ) { |
|
745
|
|
|
$( '.jp-relatedposts-post-title' ).each( function() { |
|
746
|
|
|
$( this ).after( $( '<span>August 8, 2005</span>' ) ); |
|
747
|
|
|
} ); |
|
748
|
|
|
} |
|
749
|
|
|
if ( $( 'input[name="jetpack_relatedposts[show_context]"]:checked' ).length ) { |
|
750
|
|
|
$( '.jp-relatedposts-post-context' ).show(); |
|
751
|
|
|
} else { |
|
752
|
|
|
$( '.jp-relatedposts-post-context' ).hide(); |
|
753
|
|
|
} |
|
754
|
|
|
$( '#settings-reading-relatedposts-preview .jp-relatedposts' ).show(); |
|
755
|
|
|
}; |
|
756
|
|
|
|
|
757
|
|
|
// Update on load |
|
758
|
|
|
update_preview(); |
|
759
|
|
|
update_ui(); |
|
760
|
|
|
|
|
761
|
|
|
// Update on change |
|
762
|
|
|
$( '#settings-reading-relatedposts-customize input' ) |
|
763
|
|
|
.change( update_preview ); |
|
764
|
|
|
$( '#settings-reading-relatedposts' ) |
|
765
|
|
|
.find( 'input.tog' ) |
|
766
|
|
|
.change( update_ui ); |
|
767
|
|
|
}); |
|
768
|
|
|
</script> |
|
769
|
|
|
EOT; |
|
770
|
|
|
} |
|
771
|
|
|
|
|
772
|
|
|
/** |
|
773
|
|
|
* Gets an array of related posts that match the given post_id. |
|
774
|
|
|
* |
|
775
|
|
|
* @param int $post_id Post which we want to find related posts for. |
|
776
|
|
|
* @param array $args - params to use when building Elasticsearch filters to narrow down the search domain. |
|
777
|
|
|
* @uses self::get_options, get_post_type, wp_parse_args, apply_filters |
|
778
|
|
|
* @return array |
|
779
|
|
|
*/ |
|
780
|
|
|
public function get_for_post_id( $post_id, array $args ) { |
|
781
|
|
|
$options = $this->get_options(); |
|
782
|
|
|
|
|
783
|
|
|
if ( ! empty( $args['size'] ) ) { |
|
784
|
|
|
$options['size'] = $args['size']; |
|
785
|
|
|
} |
|
786
|
|
|
|
|
787
|
|
|
if ( |
|
788
|
|
|
! $options['enabled'] |
|
789
|
|
|
|| 0 === (int) $post_id |
|
790
|
|
|
|| empty( $options['size'] ) |
|
791
|
|
|
) { |
|
792
|
|
|
return array(); |
|
793
|
|
|
} |
|
794
|
|
|
|
|
795
|
|
|
$defaults = array( |
|
796
|
|
|
'size' => (int) $options['size'], |
|
797
|
|
|
'post_type' => get_post_type( $post_id ), |
|
798
|
|
|
'post_formats' => array(), |
|
799
|
|
|
'has_terms' => array(), |
|
800
|
|
|
'date_range' => array(), |
|
801
|
|
|
'exclude_post_ids' => array(), |
|
802
|
|
|
); |
|
803
|
|
|
$args = wp_parse_args( $args, $defaults ); |
|
804
|
|
|
/** |
|
805
|
|
|
* Filter the arguments used to retrieve a list of Related Posts. |
|
806
|
|
|
* |
|
807
|
|
|
* @module related-posts |
|
808
|
|
|
* |
|
809
|
|
|
* @since 2.8.0 |
|
810
|
|
|
* |
|
811
|
|
|
* @param array $args Array of options to retrieve Related Posts. |
|
812
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
813
|
|
|
*/ |
|
814
|
|
|
$args = apply_filters( 'jetpack_relatedposts_filter_args', $args, $post_id ); |
|
815
|
|
|
|
|
816
|
|
|
$filters = $this->_get_es_filters_from_args( $post_id, $args ); |
|
817
|
|
|
/** |
|
818
|
|
|
* Filter Elasticsearch options used to calculate Related Posts. |
|
819
|
|
|
* |
|
820
|
|
|
* @module related-posts |
|
821
|
|
|
* |
|
822
|
|
|
* @since 2.8.0 |
|
823
|
|
|
* |
|
824
|
|
|
* @param array $filters Array of Elasticsearch filters based on the post_id and args. |
|
825
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
826
|
|
|
*/ |
|
827
|
|
|
$filters = apply_filters( 'jetpack_relatedposts_filter_filters', $filters, $post_id ); |
|
828
|
|
|
|
|
829
|
|
|
$results = $this->_get_related_posts( $post_id, $args['size'], $filters ); |
|
830
|
|
|
/** |
|
831
|
|
|
* Filter the array of related posts matched by Elasticsearch. |
|
832
|
|
|
* |
|
833
|
|
|
* @module related-posts |
|
834
|
|
|
* |
|
835
|
|
|
* @since 2.8.0 |
|
836
|
|
|
* |
|
837
|
|
|
* @param array $results Array of related posts matched by Elasticsearch. |
|
838
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
839
|
|
|
*/ |
|
840
|
|
|
return apply_filters( 'jetpack_relatedposts_returned_results', $results, $post_id ); |
|
841
|
|
|
} |
|
842
|
|
|
|
|
843
|
|
|
/** |
|
844
|
|
|
* ========================= |
|
845
|
|
|
* PRIVATE UTILITY FUNCTIONS |
|
846
|
|
|
* ========================= |
|
847
|
|
|
*/ |
|
848
|
|
|
|
|
849
|
|
|
/** |
|
850
|
|
|
* Creates an array of Elasticsearch filters based on the post_id and args. |
|
851
|
|
|
* |
|
852
|
|
|
* @param int $post_id |
|
853
|
|
|
* @param array $args |
|
854
|
|
|
* @uses apply_filters, get_post_types, get_post_format_strings |
|
855
|
|
|
* @return array |
|
856
|
|
|
*/ |
|
857
|
|
|
protected function _get_es_filters_from_args( $post_id, array $args ) { |
|
858
|
|
|
$filters = array(); |
|
859
|
|
|
|
|
860
|
|
|
/** |
|
861
|
|
|
* Filter the terms used to search for Related Posts. |
|
862
|
|
|
* |
|
863
|
|
|
* @module related-posts |
|
864
|
|
|
* |
|
865
|
|
|
* @since 2.8.0 |
|
866
|
|
|
* |
|
867
|
|
|
* @param array $args['has_terms'] Array of terms associated to the Related Posts. |
|
868
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
869
|
|
|
*/ |
|
870
|
|
|
$args['has_terms'] = apply_filters( 'jetpack_relatedposts_filter_has_terms', $args['has_terms'], $post_id ); |
|
871
|
|
|
if ( ! empty( $args['has_terms'] ) ) { |
|
872
|
|
|
foreach( (array)$args['has_terms'] as $term ) { |
|
873
|
|
|
if ( mb_strlen( $term->taxonomy ) ) { |
|
874
|
|
View Code Duplication |
switch ( $term->taxonomy ) { |
|
875
|
|
|
case 'post_tag': |
|
876
|
|
|
$tax_fld = 'tag.slug'; |
|
877
|
|
|
break; |
|
878
|
|
|
case 'category': |
|
879
|
|
|
$tax_fld = 'category.slug'; |
|
880
|
|
|
break; |
|
881
|
|
|
default: |
|
882
|
|
|
$tax_fld = 'taxonomy.' . $term->taxonomy . '.slug'; |
|
883
|
|
|
break; |
|
884
|
|
|
} |
|
885
|
|
|
$filters[] = array( 'term' => array( $tax_fld => $term->slug ) ); |
|
886
|
|
|
} |
|
887
|
|
|
} |
|
888
|
|
|
} |
|
889
|
|
|
|
|
890
|
|
|
/** |
|
891
|
|
|
* Filter the Post Types where we search Related Posts. |
|
892
|
|
|
* |
|
893
|
|
|
* @module related-posts |
|
894
|
|
|
* |
|
895
|
|
|
* @since 2.8.0 |
|
896
|
|
|
* |
|
897
|
|
|
* @param array $args['post_type'] Array of Post Types. |
|
898
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
899
|
|
|
*/ |
|
900
|
|
|
$args['post_type'] = apply_filters( 'jetpack_relatedposts_filter_post_type', $args['post_type'], $post_id ); |
|
901
|
|
|
$valid_post_types = get_post_types(); |
|
902
|
|
|
if ( is_array( $args['post_type'] ) ) { |
|
903
|
|
|
$sanitized_post_types = array(); |
|
904
|
|
|
foreach ( $args['post_type'] as $pt ) { |
|
905
|
|
|
if ( in_array( $pt, $valid_post_types ) ) |
|
906
|
|
|
$sanitized_post_types[] = $pt; |
|
907
|
|
|
} |
|
908
|
|
|
if ( ! empty( $sanitized_post_types ) ) |
|
909
|
|
|
$filters[] = array( 'terms' => array( 'post_type' => $sanitized_post_types ) ); |
|
910
|
|
|
} else if ( in_array( $args['post_type'], $valid_post_types ) && 'all' != $args['post_type'] ) { |
|
911
|
|
|
$filters[] = array( 'term' => array( 'post_type' => $args['post_type'] ) ); |
|
912
|
|
|
} |
|
913
|
|
|
|
|
914
|
|
|
/** |
|
915
|
|
|
* Filter the Post Formats where we search Related Posts. |
|
916
|
|
|
* |
|
917
|
|
|
* @module related-posts |
|
918
|
|
|
* |
|
919
|
|
|
* @since 3.3.0 |
|
920
|
|
|
* |
|
921
|
|
|
* @param array $args['post_formats'] Array of Post Formats. |
|
922
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
923
|
|
|
*/ |
|
924
|
|
|
$args['post_formats'] = apply_filters( 'jetpack_relatedposts_filter_post_formats', $args['post_formats'], $post_id ); |
|
925
|
|
|
$valid_post_formats = get_post_format_strings(); |
|
926
|
|
|
$sanitized_post_formats = array(); |
|
927
|
|
|
foreach ( $args['post_formats'] as $pf ) { |
|
928
|
|
|
if ( array_key_exists( $pf, $valid_post_formats ) ) { |
|
929
|
|
|
$sanitized_post_formats[] = $pf; |
|
930
|
|
|
} |
|
931
|
|
|
} |
|
932
|
|
|
if ( ! empty( $sanitized_post_formats ) ) { |
|
933
|
|
|
$filters[] = array( 'terms' => array( 'post_format' => $sanitized_post_formats ) ); |
|
934
|
|
|
} |
|
935
|
|
|
|
|
936
|
|
|
/** |
|
937
|
|
|
* Filter the date range used to search Related Posts. |
|
938
|
|
|
* |
|
939
|
|
|
* @module related-posts |
|
940
|
|
|
* |
|
941
|
|
|
* @since 2.8.0 |
|
942
|
|
|
* |
|
943
|
|
|
* @param array $args['date_range'] Array of a month interval where we search Related Posts. |
|
944
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
945
|
|
|
*/ |
|
946
|
|
|
$args['date_range'] = apply_filters( 'jetpack_relatedposts_filter_date_range', $args['date_range'], $post_id ); |
|
947
|
|
|
if ( is_array( $args['date_range'] ) && ! empty( $args['date_range'] ) ) { |
|
948
|
|
|
$args['date_range'] = array_map( 'intval', $args['date_range'] ); |
|
949
|
|
|
if ( !empty( $args['date_range']['from'] ) && !empty( $args['date_range']['to'] ) ) { |
|
950
|
|
|
$filters[] = array( |
|
951
|
|
|
'range' => array( |
|
952
|
|
|
'date_gmt' => $this->_get_coalesced_range( $args['date_range'] ), |
|
953
|
|
|
) |
|
954
|
|
|
); |
|
955
|
|
|
} |
|
956
|
|
|
} |
|
957
|
|
|
|
|
958
|
|
|
/** |
|
959
|
|
|
* Filter the Post IDs excluded from appearing in Related Posts. |
|
960
|
|
|
* |
|
961
|
|
|
* @module related-posts |
|
962
|
|
|
* |
|
963
|
|
|
* @since 2.9.0 |
|
964
|
|
|
* |
|
965
|
|
|
* @param array $args['exclude_post_ids'] Array of Post IDs. |
|
966
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
967
|
|
|
*/ |
|
968
|
|
|
$args['exclude_post_ids'] = apply_filters( 'jetpack_relatedposts_filter_exclude_post_ids', $args['exclude_post_ids'], $post_id ); |
|
969
|
|
|
if ( !empty( $args['exclude_post_ids'] ) && is_array( $args['exclude_post_ids'] ) ) { |
|
970
|
|
|
$excluded_post_ids = array(); |
|
971
|
|
|
foreach ( $args['exclude_post_ids'] as $exclude_post_id) { |
|
972
|
|
|
$exclude_post_id = (int)$exclude_post_id; |
|
973
|
|
|
if ( $exclude_post_id > 0 ) |
|
974
|
|
|
$excluded_post_ids[] = $exclude_post_id; |
|
975
|
|
|
} |
|
976
|
|
|
$filters[] = array( 'not' => array( 'terms' => array( 'post_id' => $excluded_post_ids ) ) ); |
|
977
|
|
|
} |
|
978
|
|
|
|
|
979
|
|
|
return $filters; |
|
980
|
|
|
} |
|
981
|
|
|
|
|
982
|
|
|
/** |
|
983
|
|
|
* Takes a range and coalesces it into a month interval bracketed by a time as determined by the blog_id to enhance caching. |
|
984
|
|
|
* |
|
985
|
|
|
* @param array $date_range |
|
986
|
|
|
* @return array |
|
987
|
|
|
*/ |
|
988
|
|
|
protected function _get_coalesced_range( array $date_range ) { |
|
989
|
|
|
$now = time(); |
|
990
|
|
|
$coalesce_time = $this->get_blog_id() % 86400; |
|
991
|
|
|
$current_time = $now - strtotime( 'today', $now ); |
|
992
|
|
|
|
|
993
|
|
|
if ( $current_time < $coalesce_time && '01' == date( 'd', $now ) ) { |
|
994
|
|
|
// Move back 1 period |
|
995
|
|
|
return array( |
|
996
|
|
|
'from' => date( 'Y-m-01', strtotime( '-1 month', $date_range['from'] ) ) . ' ' . date( 'H:i:s', $coalesce_time ), |
|
997
|
|
|
'to' => date( 'Y-m-01', $date_range['to'] ) . ' ' . date( 'H:i:s', $coalesce_time ), |
|
998
|
|
|
); |
|
999
|
|
|
} else { |
|
1000
|
|
|
// Use current period |
|
1001
|
|
|
return array( |
|
1002
|
|
|
'from' => date( 'Y-m-01', $date_range['from'] ) . ' ' . date( 'H:i:s', $coalesce_time ), |
|
1003
|
|
|
'to' => date( 'Y-m-01', strtotime( '+1 month', $date_range['to'] ) ) . ' ' . date( 'H:i:s', $coalesce_time ), |
|
1004
|
|
|
); |
|
1005
|
|
|
} |
|
1006
|
|
|
} |
|
1007
|
|
|
|
|
1008
|
|
|
/** |
|
1009
|
|
|
* Generate and output ajax response for related posts API call. |
|
1010
|
|
|
* NOTE: Calls exit() to end all further processing after payload has been outputed. |
|
1011
|
|
|
* |
|
1012
|
|
|
* @param array $excludes array of post_ids to exclude |
|
1013
|
|
|
* @uses send_nosniff_header, self::get_for_post_id, get_the_ID |
|
1014
|
|
|
* @return null |
|
1015
|
|
|
*/ |
|
1016
|
|
|
protected function _action_frontend_init_ajax( array $excludes ) { |
|
1017
|
|
|
define( 'DOING_AJAX', true ); |
|
1018
|
|
|
|
|
1019
|
|
|
header( 'Content-type: application/json; charset=utf-8' ); // JSON can only be UTF-8 |
|
1020
|
|
|
send_nosniff_header(); |
|
1021
|
|
|
|
|
1022
|
|
|
$options = $this->get_options(); |
|
1023
|
|
|
|
|
1024
|
|
|
if ( isset( $_GET['jetpackrpcustomize'] ) ) { |
|
1025
|
|
|
|
|
1026
|
|
|
// If we're in the customizer, add dummy content. |
|
1027
|
|
|
$date_now = current_time( get_option( 'date_format' ) ); |
|
1028
|
|
|
$related_posts = array( |
|
1029
|
|
|
array( |
|
1030
|
|
|
'id' => - 1, |
|
1031
|
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/cat-blog.png', |
|
1032
|
|
|
'url_meta' => array( |
|
1033
|
|
|
'origin' => 0, |
|
1034
|
|
|
'position' => 0 |
|
1035
|
|
|
), |
|
1036
|
|
|
'title' => esc_html__( 'Big iPhone/iPad Update Now Available', 'jetpack' ), |
|
1037
|
|
|
'date' => $date_now, |
|
1038
|
|
|
'format' => false, |
|
1039
|
|
|
'excerpt' => esc_html__( 'It is that time of the year when devices are shiny again.', 'jetpack' ), |
|
1040
|
|
|
'rel' => 'nofollow', |
|
1041
|
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ), |
|
1042
|
|
|
'img' => array( |
|
1043
|
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/cat-blog.png', |
|
1044
|
|
|
'width' => 350, |
|
1045
|
|
|
'height' => 200 |
|
1046
|
|
|
), |
|
1047
|
|
|
'classes' => array() |
|
1048
|
|
|
), |
|
1049
|
|
|
array( |
|
1050
|
|
|
'id' => - 1, |
|
1051
|
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/devices.jpg', |
|
1052
|
|
|
'url_meta' => array( |
|
1053
|
|
|
'origin' => 0, |
|
1054
|
|
|
'position' => 0 |
|
1055
|
|
|
), |
|
1056
|
|
|
'title' => esc_html__( 'The WordPress for Android App Gets a Big Facelift', 'jetpack' ), |
|
1057
|
|
|
'date' => $date_now, |
|
1058
|
|
|
'format' => false, |
|
1059
|
|
|
'excerpt' => esc_html__( 'Writing is new again in Android with the new WordPress app.', 'jetpack' ), |
|
1060
|
|
|
'rel' => 'nofollow', |
|
1061
|
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ), |
|
1062
|
|
|
'img' => array( |
|
1063
|
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/devices.jpg', |
|
1064
|
|
|
'width' => 350, |
|
1065
|
|
|
'height' => 200 |
|
1066
|
|
|
), |
|
1067
|
|
|
'classes' => array() |
|
1068
|
|
|
), |
|
1069
|
|
|
array( |
|
1070
|
|
|
'id' => - 1, |
|
1071
|
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg', |
|
1072
|
|
|
'url_meta' => array( |
|
1073
|
|
|
'origin' => 0, |
|
1074
|
|
|
'position' => 0 |
|
1075
|
|
|
), |
|
1076
|
|
|
'title' => esc_html__( 'Upgrade Focus, VideoPress for weddings', 'jetpack' ), |
|
1077
|
|
|
'date' => $date_now, |
|
1078
|
|
|
'format' => false, |
|
1079
|
|
|
'excerpt' => esc_html__( 'Weddings are in the spotlight now with VideoPress for weddings.', 'jetpack' ), |
|
1080
|
|
|
'rel' => 'nofollow', |
|
1081
|
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ), |
|
1082
|
|
|
'img' => array( |
|
1083
|
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg', |
|
1084
|
|
|
'width' => 350, |
|
1085
|
|
|
'height' => 200 |
|
1086
|
|
|
), |
|
1087
|
|
|
'classes' => array() |
|
1088
|
|
|
), |
|
1089
|
|
|
); |
|
1090
|
|
|
|
|
1091
|
|
|
for ( $total = 0; $total < $options['size'] - 3; $total++ ) { |
|
1092
|
|
|
$related_posts[] = $related_posts[ $total ]; |
|
1093
|
|
|
} |
|
1094
|
|
|
|
|
1095
|
|
|
$current_post = get_post(); |
|
1096
|
|
|
|
|
1097
|
|
|
// Exclude current post after filtering to make sure it's excluded and not lost during filtering. |
|
1098
|
|
|
$excluded_posts = array_merge( |
|
1099
|
|
|
/** This filter is already documented in modules/related-posts/jetpack-related-posts.php */ |
|
1100
|
|
|
apply_filters( 'jetpack_relatedposts_filter_exclude_post_ids', array() ), |
|
1101
|
|
|
array( $current_post->ID ) |
|
1102
|
|
|
); |
|
1103
|
|
|
|
|
1104
|
|
|
// Fetch posts with featured image. |
|
1105
|
|
|
$with_post_thumbnails = get_posts( array( |
|
1106
|
|
|
'posts_per_page' => $options['size'], |
|
1107
|
|
|
'post__not_in' => $excluded_posts, |
|
1108
|
|
|
'post_type' => $current_post->post_type, |
|
1109
|
|
|
'meta_key' => '_thumbnail_id', |
|
1110
|
|
|
'suppress_filters' => false, |
|
1111
|
|
|
) ); |
|
1112
|
|
|
|
|
1113
|
|
|
// If we don't have enough, fetch posts without featured image. |
|
1114
|
|
|
if ( 0 < ( $more = $options['size'] - count( $with_post_thumbnails ) ) ) { |
|
1115
|
|
|
$no_post_thumbnails = get_posts( array( |
|
1116
|
|
|
'posts_per_page' => $more, |
|
1117
|
|
|
'post__not_in' => $excluded_posts, |
|
1118
|
|
|
'post_type' => $current_post->post_type, |
|
1119
|
|
|
'meta_query' => array( |
|
1120
|
|
|
array( |
|
1121
|
|
|
'key' => '_thumbnail_id', |
|
1122
|
|
|
'compare' => 'NOT EXISTS', |
|
1123
|
|
|
), |
|
1124
|
|
|
), |
|
1125
|
|
|
'suppress_filters' => false, |
|
1126
|
|
|
) ); |
|
1127
|
|
|
} else { |
|
1128
|
|
|
$no_post_thumbnails = array(); |
|
1129
|
|
|
} |
|
1130
|
|
|
|
|
1131
|
|
|
foreach ( array_merge( $with_post_thumbnails, $no_post_thumbnails ) as $index => $real_post ) { |
|
1132
|
|
|
$related_posts[ $index ]['id'] = $real_post->ID; |
|
1133
|
|
|
$related_posts[ $index ]['url'] = esc_url( get_permalink( $real_post ) ); |
|
1134
|
|
|
$related_posts[ $index ]['title'] = $this->_to_utf8( $this->_get_title( $real_post->post_title, $real_post->post_content ) ); |
|
1135
|
|
|
$related_posts[ $index ]['date'] = get_the_date( '', $real_post ); |
|
1136
|
|
|
$related_posts[ $index ]['excerpt'] = html_entity_decode( $this->_to_utf8( $this->_get_excerpt( $real_post->post_excerpt, $real_post->post_content ) ), ENT_QUOTES, 'UTF-8' ); |
|
1137
|
|
|
$related_posts[ $index ]['img'] = $this->_generate_related_post_image_params( $real_post->ID ); |
|
1138
|
|
|
$related_posts[ $index ]['context'] = $this->_generate_related_post_context( $real_post->ID ); |
|
1139
|
|
|
} |
|
1140
|
|
|
} else { |
|
1141
|
|
|
$related_posts = $this->get_for_post_id( |
|
1142
|
|
|
get_the_ID(), |
|
1143
|
|
|
array( |
|
1144
|
|
|
'exclude_post_ids' => $excludes, |
|
1145
|
|
|
) |
|
1146
|
|
|
); |
|
1147
|
|
|
} |
|
1148
|
|
|
|
|
1149
|
|
|
$response = array( |
|
1150
|
|
|
'version' => self::VERSION, |
|
1151
|
|
|
'show_thumbnails' => (bool) $options['show_thumbnails'], |
|
1152
|
|
|
'show_date' => (bool) $options['show_date'], |
|
1153
|
|
|
'show_context' => (bool) $options['show_context'], |
|
1154
|
|
|
'layout' => (string) $options['layout'], |
|
1155
|
|
|
'headline' => (string) $options['headline'], |
|
1156
|
|
|
'items' => array(), |
|
1157
|
|
|
); |
|
1158
|
|
|
|
|
1159
|
|
|
if ( count( $related_posts ) == $options['size'] ) |
|
1160
|
|
|
$response['items'] = $related_posts; |
|
1161
|
|
|
|
|
1162
|
|
|
echo json_encode( $response ); |
|
1163
|
|
|
|
|
1164
|
|
|
exit(); |
|
1165
|
|
|
} |
|
1166
|
|
|
|
|
1167
|
|
|
/** |
|
1168
|
|
|
* Returns a UTF-8 encoded array of post information for the given post_id |
|
1169
|
|
|
* |
|
1170
|
|
|
* @param int $post_id |
|
1171
|
|
|
* @param int $position |
|
1172
|
|
|
* @param int $origin The post id that this is related to |
|
1173
|
|
|
* @uses get_post, get_permalink, remove_query_arg, get_post_format, apply_filters |
|
1174
|
|
|
* @return array |
|
1175
|
|
|
*/ |
|
1176
|
|
|
public function get_related_post_data_for_post( $post_id, $position, $origin ) { |
|
1177
|
|
|
$post = get_post( $post_id ); |
|
1178
|
|
|
|
|
1179
|
|
|
return array( |
|
1180
|
|
|
'id' => $post->ID, |
|
1181
|
|
|
'url' => get_permalink( $post->ID ), |
|
1182
|
|
|
'url_meta' => array( 'origin' => $origin, 'position' => $position ), |
|
1183
|
|
|
'title' => $this->_to_utf8( $this->_get_title( $post->post_title, $post->post_content ) ), |
|
1184
|
|
|
'date' => get_the_date( '', $post->ID ), |
|
1185
|
|
|
'format' => get_post_format( $post->ID ), |
|
1186
|
|
|
'excerpt' => html_entity_decode( $this->_to_utf8( $this->_get_excerpt( $post->post_excerpt, $post->post_content ) ), ENT_QUOTES, 'UTF-8' ), |
|
1187
|
|
|
/** |
|
1188
|
|
|
* Filters the rel attribute for the Related Posts' links. |
|
1189
|
|
|
* |
|
1190
|
|
|
* @module related-posts |
|
1191
|
|
|
* |
|
1192
|
|
|
* @since 3.7.0 |
|
1193
|
|
|
* |
|
1194
|
|
|
* @param string nofollow Link rel attribute for Related Posts' link. Default is nofollow. |
|
1195
|
|
|
* @param int $post->ID Post ID. |
|
1196
|
|
|
*/ |
|
1197
|
|
|
'rel' => apply_filters( 'jetpack_relatedposts_filter_post_link_rel', 'nofollow', $post->ID ), |
|
1198
|
|
|
/** |
|
1199
|
|
|
* Filter the context displayed below each Related Post. |
|
1200
|
|
|
* |
|
1201
|
|
|
* @module related-posts |
|
1202
|
|
|
* |
|
1203
|
|
|
* @since 3.0.0 |
|
1204
|
|
|
* |
|
1205
|
|
|
* @param string $this->_to_utf8( $this->_generate_related_post_context( $post->ID ) ) Context displayed below each related post. |
|
1206
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
1207
|
|
|
*/ |
|
1208
|
|
|
'context' => apply_filters( |
|
1209
|
|
|
'jetpack_relatedposts_filter_post_context', |
|
1210
|
|
|
$this->_to_utf8( $this->_generate_related_post_context( $post->ID ) ), |
|
1211
|
|
|
$post->ID |
|
1212
|
|
|
), |
|
1213
|
|
|
'img' => $this->_generate_related_post_image_params( $post->ID ), |
|
1214
|
|
|
/** |
|
1215
|
|
|
* Filter the post css classes added on HTML markup. |
|
1216
|
|
|
* |
|
1217
|
|
|
* @module related-posts |
|
1218
|
|
|
* |
|
1219
|
|
|
* @since 3.8.0 |
|
1220
|
|
|
* |
|
1221
|
|
|
* @param array array() CSS classes added on post HTML markup. |
|
1222
|
|
|
* @param string $post_id Post ID. |
|
1223
|
|
|
*/ |
|
1224
|
|
|
'classes' => apply_filters( |
|
1225
|
|
|
'jetpack_relatedposts_filter_post_css_classes', |
|
1226
|
|
|
array(), |
|
1227
|
|
|
$post->ID |
|
1228
|
|
|
), |
|
1229
|
|
|
); |
|
1230
|
|
|
} |
|
1231
|
|
|
|
|
1232
|
|
|
/** |
|
1233
|
|
|
* Returns either the title or a small excerpt to use as title for post. |
|
1234
|
|
|
* |
|
1235
|
|
|
* @param string $post_title |
|
1236
|
|
|
* @param string $post_content |
|
1237
|
|
|
* @uses strip_shortcodes, wp_trim_words, __ |
|
1238
|
|
|
* @return string |
|
1239
|
|
|
*/ |
|
1240
|
|
|
protected function _get_title( $post_title, $post_content ) { |
|
1241
|
|
|
if ( ! empty( $post_title ) ) { |
|
1242
|
|
|
return wp_strip_all_tags( $post_title ); |
|
1243
|
|
|
} |
|
1244
|
|
|
|
|
1245
|
|
|
$post_title = wp_trim_words( wp_strip_all_tags( strip_shortcodes( $post_content ) ), 5, '…' ); |
|
1246
|
|
|
if ( ! empty( $post_title ) ) { |
|
1247
|
|
|
return $post_title; |
|
1248
|
|
|
} |
|
1249
|
|
|
|
|
1250
|
|
|
return __( 'Untitled Post', 'jetpack' ); |
|
1251
|
|
|
} |
|
1252
|
|
|
|
|
1253
|
|
|
/** |
|
1254
|
|
|
* Returns a plain text post excerpt for title attribute of links. |
|
1255
|
|
|
* |
|
1256
|
|
|
* @param string $post_excerpt |
|
1257
|
|
|
* @param string $post_content |
|
1258
|
|
|
* @uses strip_shortcodes, wp_strip_all_tags, wp_trim_words |
|
1259
|
|
|
* @return string |
|
1260
|
|
|
*/ |
|
1261
|
|
|
protected function _get_excerpt( $post_excerpt, $post_content ) { |
|
1262
|
|
|
if ( empty( $post_excerpt ) ) |
|
1263
|
|
|
$excerpt = $post_content; |
|
1264
|
|
|
else |
|
1265
|
|
|
$excerpt = $post_excerpt; |
|
1266
|
|
|
|
|
1267
|
|
|
return wp_trim_words( wp_strip_all_tags( strip_shortcodes( $excerpt ) ), 50, '…' ); |
|
1268
|
|
|
} |
|
1269
|
|
|
|
|
1270
|
|
|
/** |
|
1271
|
|
|
* Generates the thumbnail image to be used for the post. Uses the |
|
1272
|
|
|
* image as returned by Jetpack_PostImages::get_image() |
|
1273
|
|
|
* |
|
1274
|
|
|
* @param int $post_id |
|
1275
|
|
|
* @uses self::get_options, apply_filters, Jetpack_PostImages::get_image, Jetpack_PostImages::fit_image_url |
|
1276
|
|
|
* @return string |
|
1277
|
|
|
*/ |
|
1278
|
|
|
protected function _generate_related_post_image_params( $post_id ) { |
|
1279
|
|
|
$options = $this->get_options(); |
|
|
|
|
|
|
1280
|
|
|
$image_params = array( |
|
1281
|
|
|
'alt_text' => '', |
|
1282
|
|
|
'src' => '', |
|
1283
|
|
|
'width' => 0, |
|
1284
|
|
|
'height' => 0, |
|
1285
|
|
|
); |
|
1286
|
|
|
|
|
1287
|
|
|
/** |
|
1288
|
|
|
* Filter the size of the Related Posts images. |
|
1289
|
|
|
* |
|
1290
|
|
|
* @module related-posts |
|
1291
|
|
|
* |
|
1292
|
|
|
* @since 2.8.0 |
|
1293
|
|
|
* |
|
1294
|
|
|
* @param array array( 'width' => 350, 'height' => 200 ) Size of the images displayed below each Related Post. |
|
1295
|
|
|
*/ |
|
1296
|
|
|
$thumbnail_size = apply_filters( |
|
1297
|
|
|
'jetpack_relatedposts_filter_thumbnail_size', |
|
1298
|
|
|
array( 'width' => 350, 'height' => 200 ) |
|
1299
|
|
|
); |
|
1300
|
|
|
if ( !is_array( $thumbnail_size ) ) { |
|
1301
|
|
|
$thumbnail_size = array( |
|
1302
|
|
|
'width' => (int)$thumbnail_size, |
|
1303
|
|
|
'height' => (int)$thumbnail_size |
|
1304
|
|
|
); |
|
1305
|
|
|
} |
|
1306
|
|
|
|
|
1307
|
|
|
// Try to get post image |
|
1308
|
|
|
if ( class_exists( 'Jetpack_PostImages' ) ) { |
|
1309
|
|
|
$img_url = ''; |
|
1310
|
|
|
$post_image = Jetpack_PostImages::get_image( |
|
1311
|
|
|
$post_id, |
|
1312
|
|
|
$thumbnail_size |
|
1313
|
|
|
); |
|
1314
|
|
|
|
|
1315
|
|
|
if ( is_array($post_image) ) { |
|
1316
|
|
|
$img_url = $post_image['src']; |
|
1317
|
|
|
} elseif ( class_exists( 'Jetpack_Media_Summary' ) ) { |
|
1318
|
|
|
$media = Jetpack_Media_Summary::get( $post_id ); |
|
1319
|
|
|
|
|
1320
|
|
|
if ( is_array($media) && !empty( $media['image'] ) ) { |
|
1321
|
|
|
$img_url = $media['image']; |
|
1322
|
|
|
} |
|
1323
|
|
|
} |
|
1324
|
|
|
|
|
1325
|
|
|
if ( ! empty( $img_url ) ) { |
|
1326
|
|
|
if ( ! empty( $post_image['alt_text'] ) ) { |
|
1327
|
|
|
$image_params['alt_text'] = $post_image['alt_text']; |
|
1328
|
|
|
} else { |
|
1329
|
|
|
$image_params['alt_text'] = ''; |
|
1330
|
|
|
} |
|
1331
|
|
|
$image_params['width'] = $thumbnail_size['width']; |
|
1332
|
|
|
$image_params['height'] = $thumbnail_size['height']; |
|
1333
|
|
|
$image_params['src'] = Jetpack_PostImages::fit_image_url( |
|
1334
|
|
|
$img_url, |
|
1335
|
|
|
$thumbnail_size['width'], |
|
1336
|
|
|
$thumbnail_size['height'] |
|
1337
|
|
|
); |
|
1338
|
|
|
} |
|
1339
|
|
|
} |
|
1340
|
|
|
|
|
1341
|
|
|
return $image_params; |
|
1342
|
|
|
} |
|
1343
|
|
|
|
|
1344
|
|
|
/** |
|
1345
|
|
|
* Returns the string UTF-8 encoded |
|
1346
|
|
|
* |
|
1347
|
|
|
* @param string $text |
|
1348
|
|
|
* @return string |
|
1349
|
|
|
*/ |
|
1350
|
|
|
protected function _to_utf8( $text ) { |
|
1351
|
|
|
if ( $this->_convert_charset ) { |
|
1352
|
|
|
return iconv( $this->_blog_charset, 'UTF-8', $text ); |
|
1353
|
|
|
} else { |
|
1354
|
|
|
return $text; |
|
1355
|
|
|
} |
|
1356
|
|
|
} |
|
1357
|
|
|
|
|
1358
|
|
|
/** |
|
1359
|
|
|
* ============================================= |
|
1360
|
|
|
* PROTECTED UTILITY FUNCTIONS EXTENDED BY WPCOM |
|
1361
|
|
|
* ============================================= |
|
1362
|
|
|
*/ |
|
1363
|
|
|
|
|
1364
|
|
|
/** |
|
1365
|
|
|
* Workhorse method to return array of related posts matched by Elasticsearch. |
|
1366
|
|
|
* |
|
1367
|
|
|
* @param int $post_id |
|
1368
|
|
|
* @param int $size |
|
1369
|
|
|
* @param array $filters |
|
1370
|
|
|
* @uses wp_remote_post, is_wp_error, get_option, wp_remote_retrieve_body, get_post, add_query_arg, remove_query_arg, get_permalink, get_post_format, apply_filters |
|
1371
|
|
|
* @return array |
|
1372
|
|
|
*/ |
|
1373
|
|
|
protected function _get_related_posts( $post_id, $size, array $filters ) { |
|
1374
|
|
|
$hits = $this->_filter_non_public_posts( |
|
1375
|
|
|
$this->_get_related_post_ids( |
|
1376
|
|
|
$post_id, |
|
1377
|
|
|
$size, |
|
1378
|
|
|
$filters |
|
1379
|
|
|
) |
|
1380
|
|
|
); |
|
1381
|
|
|
|
|
1382
|
|
|
/** |
|
1383
|
|
|
* Filter the Related Posts matched by Elasticsearch. |
|
1384
|
|
|
* |
|
1385
|
|
|
* @module related-posts |
|
1386
|
|
|
* |
|
1387
|
|
|
* @since 2.9.0 |
|
1388
|
|
|
* |
|
1389
|
|
|
* @param array $hits Array of Post IDs matched by Elasticsearch. |
|
1390
|
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts. |
|
1391
|
|
|
*/ |
|
1392
|
|
|
$hits = apply_filters( 'jetpack_relatedposts_filter_hits', $hits, $post_id ); |
|
1393
|
|
|
|
|
1394
|
|
|
$related_posts = array(); |
|
1395
|
|
|
foreach ( $hits as $i => $hit ) { |
|
1396
|
|
|
$related_posts[] = $this->get_related_post_data_for_post( $hit['id'], $i, $post_id ); |
|
1397
|
|
|
} |
|
1398
|
|
|
return $related_posts; |
|
1399
|
|
|
} |
|
1400
|
|
|
|
|
1401
|
|
|
/** |
|
1402
|
|
|
* Get array of related posts matched by Elasticsearch. |
|
1403
|
|
|
* |
|
1404
|
|
|
* @param int $post_id |
|
1405
|
|
|
* @param int $size |
|
1406
|
|
|
* @param array $filters |
|
1407
|
|
|
* @uses wp_remote_post, is_wp_error, wp_remote_retrieve_body, get_post_meta, update_post_meta |
|
1408
|
|
|
* @return array |
|
1409
|
|
|
*/ |
|
1410
|
|
|
protected function _get_related_post_ids( $post_id, $size, array $filters ) { |
|
1411
|
|
|
$now_ts = time(); |
|
1412
|
|
|
$cache_meta_key = '_jetpack_related_posts_cache'; |
|
1413
|
|
|
|
|
1414
|
|
|
$body = array( |
|
1415
|
|
|
'size' => (int) $size, |
|
1416
|
|
|
); |
|
1417
|
|
|
|
|
1418
|
|
|
if ( !empty( $filters ) ) |
|
1419
|
|
|
$body['filter'] = array( 'and' => $filters ); |
|
1420
|
|
|
|
|
1421
|
|
|
// Build cache key |
|
1422
|
|
|
$cache_key = md5( serialize( $body ) ); |
|
1423
|
|
|
|
|
1424
|
|
|
// Load all cached values |
|
1425
|
|
|
if ( wp_using_ext_object_cache() ) { |
|
1426
|
|
|
$transient_name = "{$cache_meta_key}_{$cache_key}_{$post_id}"; |
|
1427
|
|
|
$cache = get_transient( $transient_name ); |
|
1428
|
|
|
if ( false !== $cache ) { |
|
1429
|
|
|
return $cache; |
|
1430
|
|
|
} |
|
1431
|
|
|
} else { |
|
1432
|
|
|
$cache = get_post_meta( $post_id, $cache_meta_key, true ); |
|
1433
|
|
|
|
|
1434
|
|
|
if ( empty( $cache ) ) |
|
1435
|
|
|
$cache = array(); |
|
1436
|
|
|
|
|
1437
|
|
|
|
|
1438
|
|
|
// Cache is valid! Return cached value. |
|
1439
|
|
|
if ( isset( $cache[ $cache_key ] ) && is_array( $cache[ $cache_key ] ) && $cache[ $cache_key ][ 'expires' ] > $now_ts ) { |
|
1440
|
|
|
return $cache[ $cache_key ][ 'payload' ]; |
|
1441
|
|
|
} |
|
1442
|
|
|
} |
|
1443
|
|
|
|
|
1444
|
|
|
$response = wp_remote_post( |
|
1445
|
|
|
"https://public-api.wordpress.com/rest/v1/sites/{$this->get_blog_id()}/posts/$post_id/related/", |
|
1446
|
|
|
array( |
|
1447
|
|
|
'timeout' => 10, |
|
1448
|
|
|
'user-agent' => 'jetpack_related_posts', |
|
1449
|
|
|
'sslverify' => true, |
|
1450
|
|
|
'body' => $body, |
|
1451
|
|
|
) |
|
1452
|
|
|
); |
|
1453
|
|
|
|
|
1454
|
|
|
// Oh no... return nothing don't cache errors. |
|
1455
|
|
|
if ( is_wp_error( $response ) ) { |
|
1456
|
|
|
if ( isset( $cache[ $cache_key ] ) && is_array( $cache[ $cache_key ] ) ) |
|
1457
|
|
|
return $cache[ $cache_key ][ 'payload' ]; // return stale |
|
1458
|
|
|
else |
|
1459
|
|
|
return array(); |
|
1460
|
|
|
} |
|
1461
|
|
|
|
|
1462
|
|
|
$results = json_decode( wp_remote_retrieve_body( $response ), true ); |
|
1463
|
|
|
$related_posts = array(); |
|
1464
|
|
|
if ( is_array( $results ) && !empty( $results['hits'] ) ) { |
|
1465
|
|
|
foreach( $results['hits'] as $hit ) { |
|
1466
|
|
|
$related_posts[] = array( |
|
1467
|
|
|
'id' => $hit['fields']['post_id'], |
|
1468
|
|
|
); |
|
1469
|
|
|
} |
|
1470
|
|
|
} |
|
1471
|
|
|
|
|
1472
|
|
|
// An empty array might indicate no related posts or that posts |
|
1473
|
|
|
// are not yet synced to WordPress.com, so we cache for only 1 |
|
1474
|
|
|
// minute in this case |
|
1475
|
|
|
if ( empty( $related_posts ) ) { |
|
1476
|
|
|
$cache_ttl = 60; |
|
1477
|
|
|
} else { |
|
1478
|
|
|
$cache_ttl = 12 * HOUR_IN_SECONDS; |
|
1479
|
|
|
} |
|
1480
|
|
|
|
|
1481
|
|
|
// Update cache |
|
1482
|
|
|
if ( wp_using_ext_object_cache() ) { |
|
1483
|
|
|
set_transient( $transient_name, $related_posts, $cache_ttl ); |
|
|
|
|
|
|
1484
|
|
|
} else { |
|
1485
|
|
|
// Copy all valid cache values |
|
1486
|
|
|
$new_cache = array(); |
|
1487
|
|
|
foreach ( $cache as $k => $v ) { |
|
1488
|
|
|
if ( is_array( $v ) && $v[ 'expires' ] > $now_ts ) { |
|
1489
|
|
|
$new_cache[ $k ] = $v; |
|
1490
|
|
|
} |
|
1491
|
|
|
} |
|
1492
|
|
|
|
|
1493
|
|
|
// Set new cache value |
|
1494
|
|
|
$cache_expires = $cache_ttl + $now_ts; |
|
1495
|
|
|
$new_cache[ $cache_key ] = array( |
|
1496
|
|
|
'expires' => $cache_expires, |
|
1497
|
|
|
'payload' => $related_posts, |
|
1498
|
|
|
); |
|
1499
|
|
|
update_post_meta( $post_id, $cache_meta_key, $new_cache ); |
|
1500
|
|
|
} |
|
1501
|
|
|
|
|
1502
|
|
|
return $related_posts; |
|
1503
|
|
|
} |
|
1504
|
|
|
|
|
1505
|
|
|
/** |
|
1506
|
|
|
* Filter out any hits that are not public anymore. |
|
1507
|
|
|
* |
|
1508
|
|
|
* @param array $related_posts |
|
1509
|
|
|
* @uses get_post_stati, get_post_status |
|
1510
|
|
|
* @return array |
|
1511
|
|
|
*/ |
|
1512
|
|
|
protected function _filter_non_public_posts( array $related_posts ) { |
|
1513
|
|
|
$public_stati = get_post_stati( array( 'public' => true ) ); |
|
1514
|
|
|
|
|
1515
|
|
|
$filtered = array(); |
|
1516
|
|
|
foreach ( $related_posts as $hit ) { |
|
1517
|
|
|
if ( in_array( get_post_status( $hit['id'] ), $public_stati ) ) { |
|
1518
|
|
|
$filtered[] = $hit; |
|
1519
|
|
|
} |
|
1520
|
|
|
} |
|
1521
|
|
|
return $filtered; |
|
1522
|
|
|
} |
|
1523
|
|
|
|
|
1524
|
|
|
/** |
|
1525
|
|
|
* Generates a context for the related content (second line in related post output). |
|
1526
|
|
|
* Order of importance: |
|
1527
|
|
|
* - First category (Not 'Uncategorized') |
|
1528
|
|
|
* - First post tag |
|
1529
|
|
|
* - Number of comments |
|
1530
|
|
|
* |
|
1531
|
|
|
* @param int $post_id |
|
1532
|
|
|
* @uses get_the_category, get_the_terms, get_comments_number, number_format_i18n, __, _n |
|
1533
|
|
|
* @return string |
|
1534
|
|
|
*/ |
|
1535
|
|
|
protected function _generate_related_post_context( $post_id ) { |
|
1536
|
|
|
$categories = get_the_category( $post_id ); |
|
1537
|
|
View Code Duplication |
if ( is_array( $categories ) ) { |
|
1538
|
|
|
foreach ( $categories as $category ) { |
|
1539
|
|
|
if ( 'uncategorized' != $category->slug && '' != trim( $category->name ) ) { |
|
1540
|
|
|
$post_cat_context = sprintf( |
|
1541
|
|
|
esc_html_x( 'In "%s"', 'in {category/tag name}', 'jetpack' ), |
|
1542
|
|
|
$category->name |
|
1543
|
|
|
); |
|
1544
|
|
|
/** |
|
1545
|
|
|
* Filter the "In Category" line displayed in the post context below each Related Post. |
|
1546
|
|
|
* |
|
1547
|
|
|
* @module related-posts |
|
1548
|
|
|
* |
|
1549
|
|
|
* @since 3.2.0 |
|
1550
|
|
|
* |
|
1551
|
|
|
* @param string $post_cat_context "In Category" line displayed in the post context below each Related Post. |
|
1552
|
|
|
* @param array $category Array containing information about the category. |
|
1553
|
|
|
*/ |
|
1554
|
|
|
return apply_filters( 'jetpack_relatedposts_post_category_context', $post_cat_context, $category ); |
|
1555
|
|
|
} |
|
1556
|
|
|
} |
|
1557
|
|
|
} |
|
1558
|
|
|
|
|
1559
|
|
|
$tags = get_the_terms( $post_id, 'post_tag' ); |
|
1560
|
|
View Code Duplication |
if ( is_array( $tags ) ) { |
|
1561
|
|
|
foreach ( $tags as $tag ) { |
|
1562
|
|
|
if ( '' != trim( $tag->name ) ) { |
|
1563
|
|
|
$post_tag_context = sprintf( |
|
1564
|
|
|
_x( 'In "%s"', 'in {category/tag name}', 'jetpack' ), |
|
1565
|
|
|
$tag->name |
|
1566
|
|
|
); |
|
1567
|
|
|
/** |
|
1568
|
|
|
* Filter the "In Tag" line displayed in the post context below each Related Post. |
|
1569
|
|
|
* |
|
1570
|
|
|
* @module related-posts |
|
1571
|
|
|
* |
|
1572
|
|
|
* @since 3.2.0 |
|
1573
|
|
|
* |
|
1574
|
|
|
* @param string $post_tag_context "In Tag" line displayed in the post context below each Related Post. |
|
1575
|
|
|
* @param array $tag Array containing information about the tag. |
|
1576
|
|
|
*/ |
|
1577
|
|
|
return apply_filters( 'jetpack_relatedposts_post_tag_context', $post_tag_context, $tag ); |
|
1578
|
|
|
} |
|
1579
|
|
|
} |
|
1580
|
|
|
} |
|
1581
|
|
|
|
|
1582
|
|
|
$comment_count = get_comments_number( $post_id ); |
|
1583
|
|
|
if ( $comment_count > 0 ) { |
|
1584
|
|
|
return sprintf( |
|
1585
|
|
|
_n( 'With 1 comment', 'With %s comments', $comment_count, 'jetpack' ), |
|
1586
|
|
|
number_format_i18n( $comment_count ) |
|
1587
|
|
|
); |
|
1588
|
|
|
} |
|
1589
|
|
|
|
|
1590
|
|
|
return __( 'Similar post', 'jetpack' ); |
|
1591
|
|
|
} |
|
1592
|
|
|
|
|
1593
|
|
|
/** |
|
1594
|
|
|
* Logs clicks for clickthrough analysis and related result tuning. |
|
1595
|
|
|
* |
|
1596
|
|
|
* @return null |
|
1597
|
|
|
*/ |
|
1598
|
|
|
protected function _log_click( $post_id, $to_post_id, $link_position ) { |
|
1599
|
|
|
|
|
1600
|
|
|
} |
|
1601
|
|
|
|
|
1602
|
|
|
/** |
|
1603
|
|
|
* Determines if the current post is able to use related posts. |
|
1604
|
|
|
* |
|
1605
|
|
|
* @uses self::get_options, is_admin, is_single, apply_filters |
|
1606
|
|
|
* @return bool |
|
1607
|
|
|
*/ |
|
1608
|
|
|
protected function _enabled_for_request() { |
|
1609
|
|
|
$enabled = is_single() |
|
1610
|
|
|
&& ! is_attachment() |
|
1611
|
|
|
&& ! is_admin() |
|
1612
|
|
|
&& ( ! $this->_allow_feature_toggle() || $this->get_option( 'enabled' ) ); |
|
1613
|
|
|
|
|
1614
|
|
|
if ( |
|
1615
|
|
|
class_exists( 'Jetpack_AMP_Support' ) |
|
1616
|
|
|
&& Jetpack_AMP_Support::is_amp_request() |
|
1617
|
|
|
) { |
|
1618
|
|
|
$enabled = false; |
|
1619
|
|
|
} |
|
1620
|
|
|
|
|
1621
|
|
|
/** |
|
1622
|
|
|
* Filter the Enabled value to allow related posts to be shown on pages as well. |
|
1623
|
|
|
* |
|
1624
|
|
|
* @module related-posts |
|
1625
|
|
|
* |
|
1626
|
|
|
* @since 3.3.0 |
|
1627
|
|
|
* |
|
1628
|
|
|
* @param bool $enabled Should Related Posts be enabled on the current page. |
|
1629
|
|
|
*/ |
|
1630
|
|
|
return apply_filters( 'jetpack_relatedposts_filter_enabled_for_request', $enabled ); |
|
1631
|
|
|
} |
|
1632
|
|
|
|
|
1633
|
|
|
/** |
|
1634
|
|
|
* Adds filters and enqueues assets. |
|
1635
|
|
|
* |
|
1636
|
|
|
* @uses self::_enqueue_assets, self::_setup_shortcode, add_filter |
|
1637
|
|
|
* @return null |
|
1638
|
|
|
*/ |
|
1639
|
|
|
protected function _action_frontend_init_page() { |
|
1640
|
|
|
$this->_enqueue_assets( true, true ); |
|
1641
|
|
|
$this->_setup_shortcode(); |
|
1642
|
|
|
|
|
1643
|
|
|
add_filter( 'the_content', array( $this, 'filter_add_target_to_dom' ), 40 ); |
|
1644
|
|
|
} |
|
1645
|
|
|
|
|
1646
|
|
|
/** |
|
1647
|
|
|
* Enqueues assets needed to do async loading of related posts. |
|
1648
|
|
|
* |
|
1649
|
|
|
* @uses wp_enqueue_script, wp_enqueue_style, plugins_url |
|
1650
|
|
|
* @return null |
|
1651
|
|
|
*/ |
|
1652
|
|
|
protected function _enqueue_assets( $script, $style ) { |
|
1653
|
|
|
$dependencies = is_customize_preview() ? array( 'customize-base' ) : array( 'jquery' ); |
|
1654
|
|
|
if ( $script ) { |
|
1655
|
|
|
wp_enqueue_script( |
|
1656
|
|
|
'jetpack_related-posts', |
|
1657
|
|
|
Jetpack::get_file_url_for_environment( |
|
1658
|
|
|
'_inc/build/related-posts/related-posts.min.js', |
|
1659
|
|
|
'modules/related-posts/related-posts.js' |
|
1660
|
|
|
), |
|
1661
|
|
|
$dependencies, |
|
1662
|
|
|
self::VERSION |
|
1663
|
|
|
); |
|
1664
|
|
|
$related_posts_js_options = array( |
|
1665
|
|
|
/** |
|
1666
|
|
|
* Filter each Related Post Heading structure. |
|
1667
|
|
|
* |
|
1668
|
|
|
* @since 4.0.0 |
|
1669
|
|
|
* |
|
1670
|
|
|
* @param string $str Related Post Heading structure. Default to h4. |
|
1671
|
|
|
*/ |
|
1672
|
|
|
'post_heading' => apply_filters( 'jetpack_relatedposts_filter_post_heading', esc_attr( 'h4' ) ), |
|
1673
|
|
|
); |
|
1674
|
|
|
wp_localize_script( 'jetpack_related-posts', 'related_posts_js_options', $related_posts_js_options ); |
|
1675
|
|
|
} |
|
1676
|
|
|
if ( $style ){ |
|
1677
|
|
|
wp_enqueue_style( 'jetpack_related-posts', plugins_url( 'related-posts.css', __FILE__ ), array(), self::VERSION ); |
|
1678
|
|
|
wp_style_add_data( 'jetpack_related-posts', 'rtl', 'replace' ); |
|
1679
|
|
|
} |
|
1680
|
|
|
} |
|
1681
|
|
|
|
|
1682
|
|
|
/** |
|
1683
|
|
|
* Sets up the shortcode processing. |
|
1684
|
|
|
* |
|
1685
|
|
|
* @uses add_filter, add_shortcode |
|
1686
|
|
|
* @return null |
|
1687
|
|
|
*/ |
|
1688
|
|
|
protected function _setup_shortcode() { |
|
1689
|
|
|
add_filter( 'the_content', array( $this, 'test_for_shortcode' ), 0 ); |
|
1690
|
|
|
|
|
1691
|
|
|
add_shortcode( self::SHORTCODE, array( $this, 'get_target_html' ) ); |
|
1692
|
|
|
} |
|
1693
|
|
|
|
|
1694
|
|
|
protected function _allow_feature_toggle() { |
|
1695
|
|
|
if ( null === $this->_allow_feature_toggle ) { |
|
1696
|
|
|
/** |
|
1697
|
|
|
* Filter the display of the Related Posts toggle in Settings > Reading. |
|
1698
|
|
|
* |
|
1699
|
|
|
* @module related-posts |
|
1700
|
|
|
* |
|
1701
|
|
|
* @since 2.8.0 |
|
1702
|
|
|
* |
|
1703
|
|
|
* @param bool false Display a feature toggle. Default to false. |
|
1704
|
|
|
*/ |
|
1705
|
|
|
$this->_allow_feature_toggle = apply_filters( 'jetpack_relatedposts_filter_allow_feature_toggle', false ); |
|
1706
|
|
|
} |
|
1707
|
|
|
return $this->_allow_feature_toggle; |
|
1708
|
|
|
} |
|
1709
|
|
|
|
|
1710
|
|
|
/** |
|
1711
|
|
|
* =================================================== |
|
1712
|
|
|
* FUNCTIONS EXPOSING RELATED POSTS IN THE WP REST API |
|
1713
|
|
|
* =================================================== |
|
1714
|
|
|
*/ |
|
1715
|
|
|
|
|
1716
|
|
|
/** |
|
1717
|
|
|
* Add Related Posts to the REST API Post response. |
|
1718
|
|
|
* |
|
1719
|
|
|
* @since 4.4.0 |
|
1720
|
|
|
* |
|
1721
|
|
|
* @action rest_api_init |
|
1722
|
|
|
* @uses register_rest_field, self::rest_get_related_posts |
|
1723
|
|
|
* @return null |
|
1724
|
|
|
*/ |
|
1725
|
|
|
public function rest_register_related_posts() { |
|
1726
|
|
|
register_rest_field( 'post', |
|
1727
|
|
|
'jetpack-related-posts', |
|
1728
|
|
|
array( |
|
1729
|
|
|
'get_callback' => array( $this, 'rest_get_related_posts' ), |
|
1730
|
|
|
'update_callback' => null, |
|
1731
|
|
|
'schema' => null, |
|
1732
|
|
|
) |
|
1733
|
|
|
); |
|
1734
|
|
|
} |
|
1735
|
|
|
|
|
1736
|
|
|
/** |
|
1737
|
|
|
* Build an array of Related Posts. |
|
1738
|
|
|
* By default returns cached results that are stored for up to 12 hours. |
|
1739
|
|
|
* |
|
1740
|
|
|
* @since 4.4.0 |
|
1741
|
|
|
* |
|
1742
|
|
|
* @param array $object Details of current post. |
|
1743
|
|
|
* @param string $field_name Name of field. |
|
1744
|
|
|
* @param WP_REST_Request $request Current request |
|
1745
|
|
|
* |
|
1746
|
|
|
* @uses self::get_for_post_id |
|
1747
|
|
|
* |
|
1748
|
|
|
* @return array |
|
1749
|
|
|
*/ |
|
1750
|
|
|
public function rest_get_related_posts( $object, $field_name, $request ) { |
|
1751
|
|
|
return $this->get_for_post_id( $object['id'], array( 'size' => 6 ) ); |
|
1752
|
|
|
} |
|
1753
|
|
|
} |
|
1754
|
|
|
|
|
1755
|
|
|
class Jetpack_RelatedPosts_Raw extends Jetpack_RelatedPosts { |
|
1756
|
|
|
protected $_query_name; |
|
1757
|
|
|
|
|
1758
|
|
|
/** |
|
1759
|
|
|
* Allows callers of this class to tag each query with a unique name for tracking purposes. |
|
1760
|
|
|
* |
|
1761
|
|
|
* @param string $name |
|
1762
|
|
|
* @return Jetpack_RelatedPosts_Raw |
|
1763
|
|
|
*/ |
|
1764
|
|
|
public function set_query_name( $name ) { |
|
1765
|
|
|
$this->_query_name = (string) $name; |
|
1766
|
|
|
return $this; |
|
1767
|
|
|
} |
|
1768
|
|
|
|
|
1769
|
|
|
/** |
|
1770
|
|
|
* The raw related posts class can be used by other plugins or themes |
|
1771
|
|
|
* to get related content. This class wraps the existing RelatedPosts |
|
1772
|
|
|
* logic thus we never want to add anything to the DOM or do anything |
|
1773
|
|
|
* for event hooks. We will also not present any settings for this |
|
1774
|
|
|
* class and keep it enabled as calls to this class is done |
|
1775
|
|
|
* programmatically. |
|
1776
|
|
|
*/ |
|
1777
|
|
|
public function action_admin_init() {} |
|
1778
|
|
|
public function action_frontend_init() {} |
|
1779
|
|
|
public function get_options() { |
|
1780
|
|
|
return array( |
|
1781
|
|
|
'enabled' => true, |
|
1782
|
|
|
); |
|
1783
|
|
|
} |
|
1784
|
|
|
|
|
1785
|
|
|
/** |
|
1786
|
|
|
* Workhorse method to return array of related posts ids matched by Elasticsearch. |
|
1787
|
|
|
* |
|
1788
|
|
|
* @param int $post_id |
|
1789
|
|
|
* @param int $size |
|
1790
|
|
|
* @param array $filters |
|
1791
|
|
|
* @uses wp_remote_post, is_wp_error, wp_remote_retrieve_body |
|
1792
|
|
|
* @return array |
|
1793
|
|
|
*/ |
|
1794
|
|
|
protected function _get_related_posts( $post_id, $size, array $filters ) { |
|
1795
|
|
|
$hits = $this->_filter_non_public_posts( |
|
1796
|
|
|
$this->_get_related_post_ids( |
|
1797
|
|
|
$post_id, |
|
1798
|
|
|
$size, |
|
1799
|
|
|
$filters |
|
1800
|
|
|
) |
|
1801
|
|
|
); |
|
1802
|
|
|
|
|
1803
|
|
|
/** This filter is already documented in modules/related-posts/related-posts.php */ |
|
1804
|
|
|
$hits = apply_filters( 'jetpack_relatedposts_filter_hits', $hits, $post_id ); |
|
1805
|
|
|
|
|
1806
|
|
|
return $hits; |
|
1807
|
|
|
} |
|
1808
|
|
|
} |
|
1809
|
|
|
|
Automattic /
jetpack
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Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.