wordpress-seo / src / presentations / archive-adjacent-trait.php

archive-adjacent-trait.php in Yoast SEO – Advanced SEO with real-time guidance and built-in AI 18.2, at src/presentations/archive-adjacent-trait.php

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1	<?php
2
3	namespace Yoast\WP\SEO\Presentations;
4
5	use Yoast\WP\SEO\Helpers\Pagination_Helper;
6	use Yoast\WP\SEO\Models\Indexable;
7
8	/**
9	* Class Archive_Adjacent.
10	*
11	* Presentation object for indexables.
12	*
13	* @property Indexable $model The indexable.
14	* @property Pagination_Helper $pagination The pagination helper. Should be defined in the parent
15	* class because of trait issues in PHP 5.6.
16	*/
17	trait Archive_Adjacent {
18
19	/**
20	* Sets the helpers for the trait.
21	*
22	* @required
23	*
24	* @codeCoverageIgnore
25	*
26	* @param Pagination_Helper $pagination The pagination helper.
27	*/
28	public function set_archive_adjacent_helpers( Pagination_Helper $pagination ) {
29	$this->pagination = $pagination;
30	}
31
32	/**
33	* Generates the rel prev.
34	*
35	* @return string
36	*/
37	public function generate_rel_prev() {
38	if ( $this->pagination->is_rel_adjacent_disabled() ) {
39	return '';
40	}
41
42	$current_page = \max( 1, $this->pagination->get_current_archive_page_number() );
43	// Check if there is a previous page.
44	if ( $current_page === 1 ) {
45	return '';
46	}
47	// Check if the previous page is the first page.
48	if ( $current_page === 2 ) {
49	return $this->get_permalink();
50	}
51
52	return $this->pagination->get_paginated_url( $this->get_permalink(), ( $current_page - 1 ) );
53	}
54
55	/**
56	* Generates the rel next.
57	*
58	* @return string
59	*/
60	public function generate_rel_next() {
61	if ( $this->pagination->is_rel_adjacent_disabled() ) {
62	return '';
63	}
64
65	$current_page = \max( 1, $this->pagination->get_current_archive_page_number() );
66	if ( $this->pagination->get_number_of_archive_pages() <= $current_page ) {
67	return '';
68	}
69
70	return $this->pagination->get_paginated_url( $this->get_permalink(), ( $current_page + 1 ) );
71	}
72	}
73