mirror of
https://git.sindominio.net/estibadores/wordpress.git
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268 lines
8.9 KiB
PHP
268 lines
8.9 KiB
PHP
<?php
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/**
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* Manages the static front page and the page for posts on frontend
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*
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* @since 1.8
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*/
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class PLL_Frontend_Static_Pages extends PLL_Static_Pages {
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/**
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* Constructor: setups filters and actions
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*
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* @since 1.8
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*
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* @param object $polylang
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*/
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public function __construct( &$polylang ) {
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parent::__construct( $polylang );
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$this->links_model = &$polylang->links_model;
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$this->links = &$polylang->links;
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add_action( 'pll_language_defined', array( $this, 'pll_language_defined' ) );
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add_action( 'pll_home_requested', array( $this, 'pll_home_requested' ) );
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// Manages the redirection of the homepage
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add_filter( 'redirect_canonical', array( $this, 'redirect_canonical' ), 10, 2 );
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add_filter( 'pll_pre_translation_url', array( $this, 'pll_pre_translation_url' ), 10, 3 );
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add_filter( 'pll_check_canonical_url', array( $this, 'pll_check_canonical_url' ) );
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add_filter( 'pll_set_language_from_query', array( $this, 'page_on_front_query' ), 10, 2 );
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add_filter( 'pll_set_language_from_query', array( $this, 'page_for_posts_query' ), 10, 2 );
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}
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/**
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* Init the filters
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*
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* @since 1.8
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*/
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public function pll_language_defined() {
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// Translates our page on front and page for posts properties
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$this->init();
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// Translates page for posts and page on front
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add_filter( 'option_page_on_front', array( $this, 'translate_page_on_front' ) );
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add_filter( 'option_page_for_posts', array( $this, 'translate_page_for_posts' ) );
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// Support theme customizer
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if ( isset( $_POST['wp_customize'], $_POST['customized'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification
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add_filter( 'pre_option_page_on_front', 'pll_get_post', 20 );
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add_filter( 'pre_option_page_for_post', 'pll_get_post', 20 );
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}
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}
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/**
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* Translates the page_id query var when the site root page is requested
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*
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* @since 1.8
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*/
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public function pll_home_requested() {
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set_query_var( 'page_id', $this->curlang->page_on_front );
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}
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/**
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* Translates page on front
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*
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* @since 1.8
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*
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* @param int $v page on front page id
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* @return int
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*/
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public function translate_page_on_front( $v ) {
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// Don't attempt to translate in a 'switch_blog' action as there is a risk to call this function while initializing the languages cache
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return isset( $this->curlang->page_on_front ) && ! doing_action( 'switch_blog' ) ? $this->curlang->page_on_front : $v;
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}
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/**
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* Manages canonical redirection of the homepage when using page on front
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*
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* @since 0.1
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*
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* @param string $redirect_url
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* @param string $requested_url
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* @return bool|string modified url, false if redirection is canceled
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*/
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public function redirect_canonical( $redirect_url, $requested_url ) {
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global $wp_query;
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if ( is_page() && ! is_feed() && isset( $wp_query->queried_object ) && $wp_query->queried_object->ID == $this->curlang->page_on_front ) {
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$url = is_paged() ? $this->links_model->add_paged_to_link( $this->links->get_home_url(), $wp_query->query_vars['page'] ) : $this->links->get_home_url();
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// Don't forget additional query vars
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$query = wp_parse_url( $redirect_url, PHP_URL_QUERY );
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if ( ! empty( $query ) ) {
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parse_str( $query, $query_vars );
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$query_vars = rawurlencode_deep( $query_vars ); // WP encodes query vars values
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$url = add_query_arg( $query_vars, $url );
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}
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return $url;
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}
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return $redirect_url;
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}
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/**
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* Translates the url of the page on front and page for posts
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*
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* @since 1.8
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*
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* @param string $url not used
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* @param object $language language in which we want the translation
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* @param int $queried_object_id id of the queried object
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* @return string
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*/
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public function pll_pre_translation_url( $url, $language, $queried_object_id ) {
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if ( ! empty( $queried_object_id ) ) {
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// Page for posts
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if ( $GLOBALS['wp_query']->is_posts_page && ( $id = $this->model->post->get( $queried_object_id, $language ) ) ) {
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$url = get_permalink( $id );
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}
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// Page on front
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elseif ( is_front_page() && $language->page_on_front && ( $language->page_on_front == $this->model->post->get( $queried_object_id, $language ) ) ) {
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$url = $language->home_url;
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}
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}
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return $url;
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}
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/**
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* Prevents canonical redirection if we are on a static front page
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*
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* @since 1.8
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*
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* @param string $redirect_url
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* @return bool|string
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*/
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public function pll_check_canonical_url( $redirect_url ) {
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return $this->options['redirect_lang'] && ! $this->options['force_lang'] && ! empty( $this->curlang->page_on_front ) && is_page( $this->curlang->page_on_front ) ? false : $redirect_url;
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}
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/**
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* Is the query for a the static front page (redirected from the language page)?
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*
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* @since 2.3
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*
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* @param object $query
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* @return bool
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*/
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protected function is_front_page( $query ) {
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$query = array_diff( array_keys( $query->query ), array( 'preview', 'page', 'paged', 'cpage', 'orderby' ) );
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return 1 === count( $query ) && in_array( 'lang', $query );
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}
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/**
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* Setups query vars when requesting a static front page
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*
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* @since 1.8
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*
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* @param bool|object $lang
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* @param object $query
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* @return bool|object
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*/
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public function page_on_front_query( $lang, $query ) {
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if ( ! empty( $lang ) || ! $this->page_on_front ) {
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return $lang;
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}
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// The home page is requested
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if ( did_action( 'home_requested' ) ) {
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$query->set( 'page_id', $lang->page_on_front );
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}
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// Redirect the language page to the homepage when using a static front page
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elseif ( ( $this->options['redirect_lang'] || $this->options['hide_default'] ) && $this->is_front_page( $query ) && $lang = $this->model->get_language( get_query_var( 'lang' ) ) ) {
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$query->is_archive = $query->is_tax = false;
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if ( ! empty( $lang->page_on_front ) ) {
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$query->set( 'page_id', $lang->page_on_front );
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$query->is_singular = $query->is_page = true;
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unset( $query->query_vars['lang'], $query->queried_object ); // Reset queried object
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} else {
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// Handle case where the static front page hasn't be translated to avoid a possible infinite redirect loop.
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$query->is_home = true;
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}
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}
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// Fix paged static front page in plain permalinks when Settings > Reading doesn't match the default language
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elseif ( ! $this->links_model->using_permalinks && count( $query->query ) === 1 && ! empty( $query->query['page'] ) ) {
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$lang = $this->model->get_language( $this->options['default_lang'] );
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$query->set( 'page_id', $lang->page_on_front );
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$query->is_singular = $query->is_page = true;
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$query->is_archive = $query->is_tax = false;
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unset( $query->query_vars['lang'], $query->queried_object ); // Reset queried object
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}
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// Set the language when requesting a static front page
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else {
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$page_id = $this->get_page_id( $query );
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$languages = $this->model->get_languages_list();
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$pages = wp_list_pluck( $languages, 'page_on_front' );
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if ( ! empty( $page_id ) && false !== $n = array_search( $page_id, $pages ) ) {
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$lang = $languages[ $n ];
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}
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}
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// Fix <!--nextpage--> for page_on_front
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if ( ( $this->options['force_lang'] < 2 || ! $this->options['redirect_lang'] ) && $this->links_model->using_permalinks && ! empty( $lang ) && isset( $query->query['paged'] ) ) {
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$query->set( 'page', $query->query['paged'] );
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unset( $query->query['paged'] );
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} elseif ( ! $this->links_model->using_permalinks && ! empty( $query->query['page'] ) ) {
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$query->is_paged = true;
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}
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return $lang;
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}
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/**
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* Setups query vars when requesting a posts page
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*
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* @since 1.8
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*
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* @param bool|object $lang
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* @param object $query
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* @return bool|object
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*/
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public function page_for_posts_query( $lang, $query ) {
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if ( empty( $lang ) && $this->page_for_posts ) {
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$page_id = $this->get_page_id( $query );
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if ( ! empty( $page_id ) && in_array( $page_id, $pages = $this->model->get_languages_list( array( 'fields' => 'page_for_posts' ) ) ) ) {
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// Fill the cache with all pages for posts to avoid one query per page later
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// The posts_per_page limit is a trick to avoid splitting the query
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get_posts( array( 'posts_per_page' => 999, 'post_type' => 'page', 'post__in' => $pages, 'lang' => '' ) );
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$lang = $this->model->post->get_language( $page_id );
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$query->is_singular = $query->is_page = false;
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$query->is_home = $query->is_posts_page = true;
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}
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}
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return $lang;
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}
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/**
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* Get queried page_id ( if exists )
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* If permalinks are used, WordPress does set and use $query->queried_object_id and sets $query->query_vars['page_id'] to 0
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* and does set and use $query->query_vars['page_id'] if permalinks are not used :(
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*
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* @since 1.5
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*
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* @param object $query instance of WP_Query
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* @return int page_id
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*/
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protected function get_page_id( $query ) {
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if ( ! empty( $query->query_vars['pagename'] ) && isset( $query->queried_object_id ) ) {
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return $query->queried_object_id;
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}
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if ( isset( $query->query_vars['page_id'] ) ) {
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return $query->query_vars['page_id'];
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}
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return 0; // No page queried
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}
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}
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