__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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<?php
namespace Yoast\WP\SEO\Helpers;
use Yoast\WP\SEO\Wrappers\WP_Query_Wrapper;
use Yoast\WP\SEO\Wrappers\WP_Rewrite_Wrapper;
/**
* A helper object for pagination.
*
* Used for the canonical URL and the rel "next" and "prev" meta tags.
*/
class Pagination_Helper {
/**
* Holds the WP rewrite wrapper instance.
*
* @var WP_Rewrite_Wrapper WP_Rewrite wrapper.
*/
protected $wp_rewrite_wrapper;
/**
* Holds the WP query wrapper instance.
*
* @var WP_Query_Wrapper WP_Query wrapper.
*/
protected $wp_query_wrapper;
/**
* Pagination_Helper constructor.
*
* @param WP_Rewrite_Wrapper $wp_rewrite_wrapper The rewrite wrapper.
* @param WP_Query_Wrapper $wp_query_wrapper The query wrapper.
*/
public function __construct( WP_Rewrite_Wrapper $wp_rewrite_wrapper, WP_Query_Wrapper $wp_query_wrapper ) {
$this->wp_rewrite_wrapper = $wp_rewrite_wrapper;
$this->wp_query_wrapper = $wp_query_wrapper;
}
/**
* Checks whether adjacent rel links are disabled.
*
* @return bool Whether adjacent rel links are disabled or not.
*/
public function is_rel_adjacent_disabled() {
/**
* Filter: 'wpseo_disable_adjacent_rel_links' - Allows disabling of Yoast adjacent links if this is being handled by other code.
*
* @param bool $links_generated Indicates if other code has handled adjacent links.
*/
return \apply_filters( 'wpseo_disable_adjacent_rel_links', false );
}
/**
* Builds a paginated URL.
*
* @param string $url The un-paginated URL of the current archive.
* @param string $page The page number to add on to $url for the $link tag.
* @param bool $add_pagination_base Optional. Whether to add the pagination base (`page`) to the url.
* @param string $pagination_query_name Optional. The name of the query argument that holds the current page.
*
* @return string The paginated URL.
*/
public function get_paginated_url( $url, $page, $add_pagination_base = true, $pagination_query_name = 'page' ) {
$wp_rewrite = $this->wp_rewrite_wrapper->get();
$key_query_loop = $this->get_key_query_loop();
if ( $key_query_loop ) {
$pagination_query_name = $key_query_loop;
}
if ( $wp_rewrite->using_permalinks() && ! $key_query_loop ) {
$url_parts = \wp_parse_url( $url );
$has_url_params = \array_key_exists( 'query', $url_parts );
if ( $has_url_params ) {
// We need to first remove the query params, before potentially adding the pagination parts.
\wp_parse_str( $url_parts['query'], $query_parts );
$url = \trailingslashit( \remove_query_arg( \array_keys( $query_parts ), $url ) );
if ( $add_pagination_base ) {
$url .= \trailingslashit( $wp_rewrite->pagination_base );
}
// We can now re-add the query params, after appending the last pagination parts.
return \add_query_arg( $query_parts, \user_trailingslashit( $url . $page ) );
}
$url = \trailingslashit( $url );
if ( $add_pagination_base ) {
$url .= \trailingslashit( $wp_rewrite->pagination_base );
}
return \user_trailingslashit( $url . $page );
}
return \add_query_arg( $pagination_query_name, $page, \user_trailingslashit( $url ) );
}
/**
* Gets the number of archive pages.
*
* @return int The number of archive pages.
*/
public function get_number_of_archive_pages() {
$wp_query = $this->wp_query_wrapper->get_query();
return (int) $wp_query->max_num_pages;
}
/**
* Returns the current page for paged archives.
*
* @return int The current archive page.
*/
public function get_current_archive_page_number() {
$wp_query = $this->wp_query_wrapper->get_main_query();
$page_number = (int) $wp_query->get( 'paged' );
if ( $page_number > 1 ) {
return $page_number;
}
$query_loop_page_number = $this->get_page_number_from_query_loop();
if ( $query_loop_page_number ) {
return $query_loop_page_number;
}
return 0;
}
/**
* Returns the current page for paged post types.
*
* @return int The current post page.
*/
public function get_current_post_page_number() {
$wp_query = $this->wp_query_wrapper->get_main_query();
$query_loop_page_number = $this->get_page_number_from_query_loop();
if ( $query_loop_page_number ) {
return $query_loop_page_number;
}
return (int) $wp_query->get( 'page' );
}
/**
* Returns the current page number.
*
* @return int The current page number.
*/
public function get_current_page_number() {
// Get the page number for an archive page.
$page_number = \get_query_var( 'paged', 1 );
if ( $page_number > 1 ) {
return $page_number;
}
$query_loop_page_number = $this->get_page_number_from_query_loop();
if ( $query_loop_page_number ) {
return $query_loop_page_number;
}
// Get the page number for a page in a paginated post.
return \get_query_var( 'page', 1 );
}
/**
* Returns the key of the query loop.
*
* @return string The key of the query loop.
*/
public function get_key_query_loop() {
$regex_pattern = '/^query-\d+-page$/';
// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- not form data.
foreach ( $_GET as $key => $value ) {
if ( \preg_match( $regex_pattern, $key ) ) {
return $key;
}
}
return '';
}
/**
* Returns the page number from the query loop.
*
* @return string The page number from the query loop.
*/
public function get_page_number_from_query_loop() {
$key_query_loop = $this->get_key_query_loop();
if ( $key_query_loop ) {
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotValidated,WordPress.Security.NonceVerification.Recommended -- Validated in get_key_query_loop().
$page_number = (int) $_GET[ $key_query_loop ];
if ( $page_number > 1 ) {
return $page_number;
}
}
return '';
}
}