name : static-pages.php <?php /** * Base class to manage the static front page and the page for posts * * @since 1.8 */ class PLL_Static_Pages { public $model, $options; public $page_on_front, $page_for_posts; /** * Constructor: setups filters and actions * * @since 1.8 * * @param object $polylang */ public function __construct( &$polylang ) { $this->model = &$polylang->model; $this->options = &$polylang->options; $this->curlang = &$polylang->curlang; $this->init(); // Modifies the page link in case the front page is not in the default language add_filter( 'page_link', array( $this, 'page_link' ), 20, 2 ); // Clean the languages cache when editing page of front, page for posts add_action( 'update_option_show_on_front', array( $this->model, 'clean_languages_cache' ) ); add_action( 'update_option_page_on_front', array( $this->model, 'clean_languages_cache' ) ); add_action( 'update_option_page_for_posts', array( $this->model, 'clean_languages_cache' ) ); // Refresh rewrite rules when the page on front is modified add_action( 'update_option_page_on_front', 'flush_rewrite_rules' ); // OEmbed add_filter( 'oembed_request_post_id', array( $this, 'oembed_request_post_id' ), 10, 2 ); } /** * Stores the page on front and page for posts ids * * @since 1.8 */ public function init() { if ( 'page' == get_option( 'show_on_front' ) ) { $this->page_on_front = get_option( 'page_on_front' ); $this->page_for_posts = get_option( 'page_for_posts' ); } else { $this->page_on_front = 0; $this->page_for_posts = 0; } } /** * Modifies the page link in case the front page is not in the default language * * @since 0.7.2 * * @param string $link link to the page * @param int $id post id of the page * @return string modified link */ public function page_link( $link, $id ) { $lang = $this->model->post->get_language( $id ); if ( $lang && $id == $lang->page_on_front ) { return $lang->home_url; } return $link; } /** * Adds page_on_front and page_for_posts properties to the language objects * * @since 1.8 * * @param array $languages * @param object $model */ public static function pll_languages_list( $languages, $model ) { if ( 'page' === get_option( 'show_on_front' ) ) { foreach ( $languages as $k => $language ) { $languages[ $k ]->page_on_front = $model->post->get( get_option( 'page_on_front' ), $language ); $languages[ $k ]->page_for_posts = $model->post->get( get_option( 'page_for_posts' ), $language ); } } return $languages; } /** * Translates page for posts * * @since 1.8 * * @param int $v page for posts page id * @return int */ public function translate_page_for_posts( $v ) { // Don't attempt to translate in a 'switch_blog' action as there is a risk to call this function while initializing the languages cache return isset( $this->curlang->page_for_posts ) && ! doing_action( 'switch_blog' ) ? $this->curlang->page_for_posts : $v; } /** * Fixes the oembed for the translated static front page * when the language page is redirected to the front page * * @since 2.6 * * @param int $post_id The post ID. * @param string $url The requested URL. */ public function oembed_request_post_id( $post_id, $url ) { foreach ( $this->model->get_languages_list() as $lang ) { if ( trailingslashit( $url ) === trailingslashit( $lang->home_url ) ) { $post_id = $lang->page_on_front; } } return $post_id; } }