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Polylang / 3.3
Polylang v3.3
3.8.9 3.8.8 3.8.7 3.8.6 3.8.5 3.8.4 3.8.3 2.7 2.7.0.1 2.7.1 2.7.2 2.7.3 2.7.4 2.8 2.8.1 2.8.2 2.8.3 2.8.4 2.9 2.9.1 2.9.2 3.0 3.0.1 3.0.2 3.0.3 All 233 releases
← All changes | include/filters.php +168 -91 2.83.3 View file →
@@ -8,11 +8,35 @@
8 8 *
9 9 * @since 1.4
10 10 */
11 11 class PLL_Filters {
12 - public $links_model, $model, $options, $curlang;
12 + /**
13 + * Stores the plugin options.
14 + *
15 + * @var array
16 + */
17 + public $options;
13 18
14 19 /**
20 + * @var PLL_Model
21 + */
22 + public $model;
23 +
24 + /**
25 + * Instance of a child class of PLL_Links_Model.
26 + *
27 + * @var PLL_Links_Model
28 + */
29 + public $links_model;
30 +
31 + /**
32 + * Current language.
33 + *
34 + * @var PLL_Language|null
35 + */
36 + public $curlang;
37 +
38 + /**
15 39 * Constructor: setups filters
16 40 *
17 41 * @since 1.4
18 42 *
@@ -23,8 +47,13 @@
23 47 $this->model = &$polylang->model;
24 48 $this->options = &$polylang->options;
25 49 $this->curlang = &$polylang->curlang;
26 50
51 + // Deletes our cache for sticky posts when the list is updated.
52 + add_action( 'update_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) );
53 + add_action( 'add_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) );
54 + add_action( 'delete_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) );
55 +
27 56 // Filters the comments according to the current language
28 57 add_action( 'parse_comment_query', array( $this, 'parse_comment_query' ) );
29 58 add_filter( 'comments_clauses', array( $this, 'comments_clauses' ), 10, 2 );
30 59
@@ -39,11 +68,8 @@
39 68
40 69 // Converts the locale to a valid W3C locale
41 70 add_filter( 'language_attributes', array( $this, 'language_attributes' ) );
42 71
43 - // Prevents deleting all the translations of the default category
44 - add_filter( 'map_meta_cap', array( $this, 'fix_delete_default_category' ), 10, 4 );
45 -
46 72 // Translate the site title in emails sent to users
47 73 add_filter( 'password_change_email', array( $this, 'translate_user_email' ) );
48 74 add_filter( 'email_change_email', array( $this, 'translate_user_email' ) );
49 75
@@ -52,67 +78,100 @@
52 78 add_filter( 'map_meta_cap', array( $this, 'fix_privacy_policy_page_editing' ), 10, 4 );
53 79
54 80 // Personal data exporter
55 81 add_filter( 'wp_privacy_personal_data_exporters', array( $this, 'register_personal_data_exporter' ), 0 ); // Since WP 4.9.6
82 +
83 + // Fix for `term_exists()`.
84 + add_filter( 'term_exists_default_query_args', array( $this, 'term_exists_default_query_args' ), 0, 3 ); // Since WP 6.0.0.
56 85 }
57 86
58 87 /**
59 - * Get the language to filter a comments query
88 + * Deletes the cache for multilingual sticky posts.
60 89 *
90 + * @since 2.8.4
91 + *
92 + * @return void
93 + */
94 + public function delete_sticky_posts_cache() {
95 + wp_cache_delete( 'sticky_posts', 'options' );
96 + }
97 +
98 + /**
99 + * Get the language to filter a comments query.
100 + *
61 101 * @since 2.0
102 + * @since 3.1 Always returns an array. Renamed from get_comments_queried_language().
62 103 *
63 - * @param object $query
64 - * @return object|bool the language(s) to use in the filter, false otherwise
104 + * @param WP_Comment_Query $query WP_Comment_Query object.
105 + * @return PLL_Language[] The languages to use in the filter.
65 106 */
66 - protected function get_comments_queried_language( $query ) {
67 - // Don't filter comments if comment ids or post ids are specified
107 + protected function get_comments_queried_languages( $query ) {
108 + // Don't filter comments if comment ids or post ids are specified.
68 109 $plucked = wp_array_slice_assoc( $query->query_vars, array( 'comment__in', 'parent', 'post_id', 'post__in', 'post_parent' ) );
69 110 $fields = array_filter( $plucked );
70 111 if ( ! empty( $fields ) ) {
71 - return false;
112 + return array();
72 113 }
73 114
74 - // Don't filter comments if a non translated post type is specified
115 + // Don't filter comments if a non translated post type is specified.
75 116 if ( ! empty( $query->query_vars['post_type'] ) && ! $this->model->is_translated_post_type( $query->query_vars['post_type'] ) ) {
76 - return false;
117 + return array();
77 118 }
78 119
79 - return empty( $query->query_vars['lang'] ) ? $this->curlang : $this->model->get_language( $query->query_vars['lang'] );
120 + // If comments are queried with a 'lang' parameter, keeps only language codes.
121 + if ( isset( $query->query_vars['lang'] ) ) {
122 + $languages = is_string( $query->query_vars['lang'] ) ? explode( ',', $query->query_vars['lang'] ) : $query->query_vars['lang'];
123 + if ( is_array( $languages ) ) {
124 + $languages = array_map( array( $this->model, 'get_language' ), $languages );
125 + return array_filter( $languages );
126 + }
127 + }
128 +
129 + if ( ! empty( $this->curlang ) ) {
130 + return array( $this->curlang );
131 + }
132 +
133 + return array();
80 134 }
81 135
82 136 /**
83 - * Adds language dependent cache domain when querying comments
84 - * Useful as the 'lang' parameter is not included in cache key by WordPress
85 - * Needed since WP 4.6 as comments have been added to persistent cache. See #36906, #37419
137 + * Adds a language dependent cache domain when querying comments.
138 + * Useful as the 'lang' parameter is not included in cache key by WordPress.
139 + * Needed since WP 4.6 as comments have been added to persistent cache. See #36906, #37419.
86 140 *
87 141 * @since 2.0
88 142 *
89 - * @param object $query
143 + * @param WP_Comment_Query $query WP_Comment_Query object.
144 + * @return void
90 145 */
91 146 public function parse_comment_query( $query ) {
92 - if ( $lang = $this->get_comments_queried_language( $query ) ) {
93 - $key = '_' . ( is_array( $lang ) ? implode( ',', $lang ) : $this->model->get_language( $lang )->slug );
147 + $lang = $this->get_comments_queried_languages( $query );
148 + if ( ! empty( $lang ) ) {
149 + $lang = wp_list_pluck( $lang, 'slug' );
150 + $key = '_' . implode( ',', $lang );
94 151 $query->query_vars['cache_domain'] = empty( $query->query_vars['cache_domain'] ) ? 'pll' . $key : $query->query_vars['cache_domain'] . $key;
95 152 }
96 153 }
97 154
98 155 /**
99 - * Filters the comments according to the current language
100 - * Used by the recent comments widget and admin language filter
156 + * Filters the comments according to the current language.
157 + * Used by the recent comments widget and admin language filter.
101 158 *
102 159 * @since 0.2
103 160 *
104 - * @param array $clauses sql clauses
105 - * @param object $query WP_Comment_Query object
106 - * @return array modified $clauses
161 + * @param string[] $clauses SQL clauses.
162 + * @param WP_Comment_Query $query WP_Comment_Query object.
163 + * @return string[] Modified $clauses.
107 164 */
108 165 public function comments_clauses( $clauses, $query ) {
109 166 global $wpdb;
110 167
111 - $lang = $this->get_comments_queried_language( $query );
168 + $lang = $this->get_comments_queried_languages( $query );
112 169
113 170 if ( ! empty( $lang ) ) {
114 - // If this clause is not already added by WP
171 + $lang = wp_list_pluck( $lang, 'slug' );
172 +
173 + // If this clause is not already added by WP.
115 174 if ( ! strpos( $clauses['join'], '.ID' ) ) {
116 175 $clauses['join'] .= " JOIN $wpdb->posts ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID";
117 176 }
118 177
@@ -122,15 +181,15 @@
122 181 return $clauses;
123 182 }
124 183
125 184 /**
126 - * Filters get_pages per language
185 + * Filters get_pages() per language.
127 186 *
128 187 * @since 1.4
129 188 *
130 - * @param array $pages an array of pages already queried
131 - * @param array $args get_pages arguments
132 - * @return array modified list of pages
189 + * @param WP_Post[] $pages An array of pages already queried.
190 + * @param array $args Array of get_pages() arguments.
191 + * @return WP_Post[] Modified list of pages.
133 192 */
134 193 public function get_pages( $pages, $args ) {
135 194 if ( isset( $args['lang'] ) && empty( $args['lang'] ) ) {
136 195 return $pages;
@@ -143,38 +202,22 @@
143 202 }
144 203
145 204 static $once = false;
146 205
147 - // Obliged to redo the get_pages query if we want to get the right number
148 206 if ( ! empty( $args['number'] ) && ! $once ) {
149 - $once = true; // avoid infinite loop
207 + // We are obliged to redo the get_pages() query if we want to get the right number.
208 + $once = true; // Avoid infinite loop.
150 209
151 - $r = array(
152 - 'lang' => 0, // So this query is not filtered
153 - 'numberposts' => -1,
154 - 'nopaging' => true,
155 - 'post_type' => $args['post_type'],
156 - 'fields' => 'ids',
157 - 'tax_query' => array(
158 - array(
159 - 'taxonomy' => 'language',
160 - 'field' => 'term_taxonomy_id', // Since WP 3.5
161 - 'terms' => $language->term_taxonomy_id,
162 - 'operator' => 'NOT IN',
163 - ),
164 - ),
165 - );
166 -
167 - // Take care that 'exclude' argument accepts integer or strings too
168 - $args['exclude'] = array_merge( wp_parse_id_list( $args['exclude'] ), get_posts( $r ) );
210 + // Take care that 'exclude' argument accepts integer or strings too.
211 + $args['exclude'] = array_merge( wp_parse_id_list( $args['exclude'] ), $this->get_related_page_ids( $language, 'NOT IN', $args ) ); // phpcs:ignore WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_exclude
169 212 $pages = get_pages( $args );
170 213 }
171 214
172 215 $ids = wp_list_pluck( $pages, 'ID' );
173 216
174 - // Filters the queried list of pages by language
175 217 if ( ! $once ) {
176 - $ids = array_intersect( $ids, $this->model->post->get_objects_in_language( $language ) );
218 + // Filters the queried list of pages by language.
219 + $ids = array_intersect( $ids, $this->get_related_page_ids( $language, 'IN', $args ) );
177 220
178 221 foreach ( $pages as $key => $page ) {
179 222 if ( ! in_array( $page->ID, $ids ) ) {
180 223 unset( $pages[ $key ] );
@@ -180,47 +223,78 @@
180 223 unset( $pages[ $key ] );
181 224 }
182 225 }
183 226
184 - $pages = array_values( $pages ); // In case 3rd parties suppose the existence of $pages[0]
227 + $pages = array_values( $pages ); // In case 3rd parties suppose the existence of $pages[0].
185 228 }
186 229
187 - // Not done by WP but extremely useful for performance when manipulating taxonomies
230 + // Not done by WP but extremely useful for performance when manipulating taxonomies.
188 231 update_object_term_cache( $ids, $args['post_type'] );
189 232
190 - $once = false; // In case get_pages is called another time
233 + $once = false; // In case get_pages() is called another time.
191 234 return $pages;
192 235 }
193 236
194 237 /**
195 - * Modifies the sql request for get_adjacent_post to filter by the current language
238 + * Get page ids related to a get_pages() in or not in a given language.
196 239 *
240 + * @since 3.2
241 + *
242 + * @param PLL_Language $language The language to use in the relationship
243 + * @param string $relation 'IN' or 'NOT IN'.
244 + * @param array $args Array of get_pages() arguments.
245 + * @return int[]
246 + */
247 + protected function get_related_page_ids( $language, $relation, $args ) {
248 + $r = array(
249 + 'lang' => '', // Ensure this query is not filtered.
250 + 'numberposts' => -1,
251 + 'nopaging' => true,
252 + 'post_type' => $args['post_type'],
253 + 'post_status' => $args['post_status'],
254 + 'fields' => 'ids',
255 + 'tax_query' => array(
256 + array(
257 + 'taxonomy' => 'language',
258 + 'field' => 'term_taxonomy_id', // Since WP 3.5.
259 + 'terms' => $language->term_taxonomy_id,
260 + 'operator' => $relation,
261 + ),
262 + ),
263 + );
264 +
265 + return get_posts( $r );
266 + }
267 +
268 + /**
269 + * Modifies the sql request for get_adjacent_post to filter by the current language.
270 + *
197 271 * @since 0.1
198 272 *
199 273 * @param string $sql The JOIN clause in the SQL.
200 274 * @param bool $in_same_term Whether post should be in a same taxonomy term.
201 - * @param array $excluded_terms Array of excluded term IDs.
275 + * @param int[] $excluded_terms Array of excluded term IDs.
202 276 * @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true.
203 277 * @param WP_Post $post WP_Post object.
204 - * @return string modified JOIN clause
278 + * @return string Modified JOIN clause.
205 279 */
206 - public function posts_join( $sql, $in_same_term, $excluded_terms, $taxonomy = '', $post = null ) {
280 + public function posts_join( $sql, $in_same_term, $excluded_terms, $taxonomy, $post ) {
207 281 return $this->model->is_translated_post_type( $post->post_type ) && ! empty( $this->curlang ) ? $sql . $this->model->post->join_clause( 'p' ) : $sql;
208 282 }
209 283
210 284 /**
211 - * Modifies the sql request for wp_get_archives and get_adjacent_post to filter by the current language
285 + * Modifies the sql request for wp_get_archives and get_adjacent_post to filter by the current language.
212 286 *
213 287 * @since 0.1
214 288 *
215 289 * @param string $sql The WHERE clause in the SQL.
216 290 * @param bool $in_same_term Whether post should be in a same taxonomy term.
217 - * @param array $excluded_terms Array of excluded term IDs.
291 + * @param int[] $excluded_terms Array of excluded term IDs.
218 292 * @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true.
219 293 * @param WP_Post $post WP_Post object.
220 - * @return string modified WHERE clause
294 + * @return string Modified WHERE clause.
221 295 */
222 - public function posts_where( $sql, $in_same_term, $excluded_terms, $taxonomy = '', $post = null ) {
296 + public function posts_where( $sql, $in_same_term, $excluded_terms, $taxonomy, $post ) {
223 297 return $this->model->is_translated_post_type( $post->post_type ) && ! empty( $this->curlang ) ? $sql . $this->model->post->where_clause( $this->curlang ) : $sql;
224 298 }
225 299
226 300 /**
@@ -238,40 +312,15 @@
238 312 return $output;
239 313 }
240 314
241 315 /**
242 - * Prevents deleting all the translations of the default category
243 - *
244 - * @since 2.1
245 - *
246 - * @param array $caps The user's actual capabilities.
247 - * @param string $cap Capability name.
248 - * @param int $user_id The user ID.
249 - * @param array $args Adds the context to the cap. The category id.
250 - * @return array
251 - */
252 - public function fix_delete_default_category( $caps, $cap, $user_id, $args ) {
253 - if ( 'delete_term' === $cap ) {
254 - $term = get_term( reset( $args ) ); // Since WP 4.4, we can get the term to get the taxonomy
255 - if ( $term instanceof WP_Term ) {
256 - $default_cat = get_option( 'default_' . $term->taxonomy );
257 - if ( $default_cat && array_intersect( $args, $this->model->term->get_translations( $default_cat ) ) ) {
258 - $caps[] = 'do_not_allow';
259 - }
260 - }
261 - }
262 -
263 - return $caps;
264 - }
265 -
266 - /**
267 316 * Translates the site title in emails sent to the user (change email, reset password)
268 317 * It is necessary to filter the email because WP evaluates the site title before calling switch_to_locale()
269 318 *
270 319 * @since 2.1.3
271 320 *
272 - * @param array $email
273 - * @return array
321 + * @param string[] $email Email contents.
322 + * @return string[] Translated email contents.
274 323 */
275 324 public function translate_user_email( $email ) {
276 325 $blog_name = wp_specialchars_decode( pll__( get_option( 'blogname' ) ), ENT_QUOTES );
277 326 $email['subject'] = sprintf( $email['subject'], $blog_name );
@@ -318,9 +367,9 @@
318 367 *
319 368 * @since 2.3.6
320 369 *
321 370 * @param array $exporters Personal data exporters
322 - * @retun array
371 + * @return array
323 372 */
324 373 public function register_personal_data_exporter( $exporters ) {
325 374 $exporters[] = array(
326 375 'exporter_friendly_name' => __( 'Translated user descriptions', 'polylang' ),
@@ -366,6 +415,34 @@
366 415 return array(
367 416 'data' => $data_to_export,
368 417 'done' => true,
369 418 );
419 + }
420 +
421 + /**
422 + * Filters default query arguments for checking if a term exists.
423 + * In `term_exists()`, WP 6.0 uses `get_terms()`, which is filtered by language by Polylang.
424 + * This filter prevents `term_exists()` to be filtered by language.
425 + *
426 + * @since 3.2
427 + *
428 + * @param array $defaults An array of arguments passed to get_terms().
429 + * @param int|string $term The term to check. Accepts term ID, slug, or name.
430 + * @param string $taxonomy The taxonomy name to use. An empty string indicates the search is against all taxonomies.
431 + * @return array
432 + */
433 + public function term_exists_default_query_args( $defaults, $term, $taxonomy ) {
434 + if ( ! empty( $taxonomy ) && ! $this->model->is_translated_taxonomy( $taxonomy ) ) {
435 + return $defaults;
436 + }
437 +
438 + if ( ! is_array( $defaults ) ) {
439 + $defaults = array();
440 + }
441 +
442 + if ( ! isset( $defaults['lang'] ) ) {
443 + $defaults['lang'] = '';
444 + }
445 +
446 + return $defaults;
370 447 }
371 448 }