wordpress-seo / admin / filters / class-abstract-post-filter.php

class-abstract-post-filter.php in Yoast SEO – Advanced SEO with real-time guidance and built-in AI 27.8, at admin/filters/class-abstract-post-filter.php

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1	<?php
2	/**
3	* WPSEO plugin file.
4	*
5	* @package WPSEO\Admin\Filters
6	*/
7
8	/**
9	* Class WPSEO_Abstract_Post_Filter.
10	*/
11	abstract class WPSEO_Abstract_Post_Filter implements WPSEO_WordPress_Integration {
12
13	/**
14	* The filter's query argument.
15	*
16	* @var string
17	*/
18	public const FILTER_QUERY_ARG = 'yoast_filter';
19
20	/**
21	* Modify the query based on the FILTER_QUERY_ARG variable in $_GET.
22	*
23	* @param string $where Query variables.
24	*
25	* @return string The modified query.
26	*/
27	abstract public function filter_posts( $where );
28
29	/**
30	* Returns the query value this filter uses.
31	*
32	* @return string The query value this filter uses.
33	*/
34	abstract public function get_query_val();
35
36	/**
37	* Returns the total number of posts that match this filter.
38	*
39	* @return int The total number of posts that match this filter.
40	*/
41	abstract protected function get_post_total();
42
43	/**
44	* Returns the label for this filter.
45	*
46	* @return string The label for this filter.
47	*/
48	abstract protected function get_label();
49
50	/**
51	* Registers the hooks.
52	*
53	* @return void
54	*/
55	public function register_hooks() {
56	add_action( 'admin_init', [ $this, 'add_filter_links' ], 11 );
57
58	add_filter( 'posts_where', [ $this, 'filter_posts' ] );
59
60	if ( $this->is_filter_active() ) {
61	add_action( 'restrict_manage_posts', [ $this, 'render_hidden_input' ] );
62	}
63
64	if ( $this->is_filter_active() ) {
65	add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_explanation_assets' ] );
66	}
67	}
68
69	/**
70	* Adds the filter links to the view_edit screens to give the user a filter link.
71	*
72	* @return void
73	*/
74	public function add_filter_links() {
75	foreach ( $this->get_post_types() as $post_type ) {
76	add_filter( 'views_edit-' . $post_type, [ $this, 'add_filter_link' ] );
77	}
78	}
79
80	/**
81	* Enqueues the necessary assets to display a filter explanation.
82	*
83	* @return void
84	*/
85	public function enqueue_explanation_assets() {
86	$explanation = $this->get_explanation();
87
88	if ( $explanation === null ) {
89	return;
90	}
91
92	$asset_manager = new WPSEO_Admin_Asset_Manager();
93	$asset_manager->enqueue_script( 'filter-explanation' );
94	$asset_manager->enqueue_style( 'filter-explanation' );
95	$asset_manager->localize_script(
96	'filter-explanation',
97	'yoastFilterExplanation',
98	[ 'text' => $explanation ],
99	);
100	}
101
102	/**
103	* Adds a filter link to the views.
104	*
105	* @param array<string, string> $views Array with the views.
106	*
107	* @return array<string, string> Array of views including the added view.
108	*/
109	public function add_filter_link( $views ) {
110	$views[ 'yoast_' . $this->get_query_val() ] = sprintf(
111	'<a href="%1$s"%2$s>%3$s</a> (%4$s)',
112	esc_url( $this->get_filter_url() ),
113	( $this->is_filter_active() ) ? ' class="current" aria-current="page"' : '',
114	$this->get_label(),
115	$this->get_post_total(),
116	);
117
118	return $views;
119	}
120
121	/**
122	* Returns a text explaining this filter. Null if no explanation is necessary.
123	*
124	* @return string\|null The explanation or null.
125	*/
126	protected function get_explanation() {
127	return null;
128	}
129
130	/**
131	* Renders a hidden input to preserve this filter's state when using sub-filters.
132	*
133	* @return void
134	*/
135	public function render_hidden_input() {
136	echo '<input type="hidden" name="' . esc_attr( self::FILTER_QUERY_ARG ) . '" value="' . esc_attr( $this->get_query_val() ) . '">';
137	}
138
139	/**
140	* Returns an url to edit.php with post_type and this filter as the query arguments.
141	*
142	* @return string The url to activate this filter.
143	*/
144	protected function get_filter_url() {
145	$query_args = [
146	self::FILTER_QUERY_ARG => $this->get_query_val(),
147	'post_type' => $this->get_current_post_type(),
148	];
149
150	return add_query_arg( $query_args, 'edit.php' );
151	}
152
153	/**
154	* Returns true when the filter is active.
155	*
156	* @return bool Whether the filter is active.
157	*/
158	protected function is_filter_active() {
159	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
160	if ( isset( $_GET[ self::FILTER_QUERY_ARG ] ) && is_string( $_GET[ self::FILTER_QUERY_ARG ] ) ) {
161	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
162	return sanitize_text_field( wp_unslash( $_GET[ self::FILTER_QUERY_ARG ] ) ) === $this->get_query_val();
163	}
164	return false;
165	}
166
167	/**
168	* Returns the current post type.
169	*
170	* @return string The current post type.
171	*/
172	protected function get_current_post_type() {
173	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
174	if ( isset( $_GET['post_type'] ) && is_string( $_GET['post_type'] ) ) {
175	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Reason: We are not processing form information.
176	$post_type = sanitize_text_field( wp_unslash( $_GET['post_type'] ) );
177	if ( ! empty( $post_type ) ) {
178	return $post_type;
179	}
180	}
181	return 'post';
182	}
183
184	/**
185	* Returns the post types to which this filter should be added.
186	*
187	* @return array The post types to which this filter should be added.
188	*/
189	protected function get_post_types() {
190	return WPSEO_Post_Type::get_accessible_post_types();
191	}
192
193	/**
194	* Checks if the post type is supported.
195	*
196	* @param string $post_type Post type to check against.
197	*
198	* @return bool True when it is supported.
199	*/
200	protected function is_supported_post_type( $post_type ) {
201	return in_array( $post_type, $this->get_post_types(), true );
202	}
203	}
204