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Polylang / 3.6.7
Polylang v3.6.7
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/model.php +701 -294 2.7.43.6.7 View file →
@@ -1,5 +1,8 @@
1 1 <?php
2 +/**
3 + * @package Polylang
4 + */
2 5
3 6 /**
4 7 * Setups the language and translations model based on WordPress taxonomies
5 8 *
@@ -5,29 +8,77 @@
5 8 *
6 9 * @since 1.2
7 10 */
8 11 class PLL_Model {
9 - public $cache; // Our internal non persistent cache object
12 + /**
13 + * Internal non persistent cache object.
14 + *
15 + * @var PLL_Cache<mixed>
16 + */
17 + public $cache;
18 +
19 + /**
20 + * Stores the plugin options.
21 + *
22 + * @var array
23 + */
10 24 public $options;
11 - public $post, $term; // Translated objects models
12 25
13 26 /**
14 - * Constructor
15 - * setups translated objects sub models
16 - * setups filters and actions
27 + * Translatable objects registry.
17 28 *
29 + * @since 3.4
30 + *
31 + * @var PLL_Translatable_Objects
32 + */
33 + public $translatable_objects;
34 +
35 + /**
36 + * Translated post model.
37 + *
38 + * @var PLL_Translated_Post
39 + */
40 + public $post;
41 +
42 + /**
43 + * Translated term model.
44 + *
45 + * @var PLL_Translated_Term
46 + */
47 + public $term;
48 +
49 + /**
50 + * Flag set to true during the language objects creation.
51 + *
52 + * @var bool
53 + */
54 + private $is_creating_language_objects = false;
55 +
56 + /**
57 + * Tells if {@see PLL_Model::get_languages_list()} can be used.
58 + *
59 + * @var bool
60 + */
61 + private $languages_ready = false;
62 +
63 + /**
64 + * Constructor.
65 + * Setups translated objects sub models.
66 + * Setups filters and actions.
67 + *
18 68 * @since 1.2
19 69 *
20 - * @param array $options Polylang options
70 + * @param array $options Polylang options.
21 71 */
22 72 public function __construct( &$options ) {
23 73 $this->options = &$options;
24 74
25 75 $this->cache = new PLL_Cache();
26 - $this->post = new PLL_Translated_Post( $this ); // translated post sub model
27 - $this->term = new PLL_Translated_Term( $this ); // translated term sub model
76 + $this->translatable_objects = new PLL_Translatable_Objects();
77 + $this->post = $this->translatable_objects->register( new PLL_Translated_Post( $this ) ); // Translated post sub model.
78 + $this->term = $this->translatable_objects->register( new PLL_Translated_Term( $this ) ); // Translated term sub model.
28 79
29 - // We need to clean languages cache when editing a language and when modifying the permalink structure
80 + // We need to clean languages cache when editing a language and when modifying the permalink structure.
30 81 add_action( 'edited_term_taxonomy', array( $this, 'clean_languages_cache' ), 10, 2 );
31 82 add_action( 'update_option_permalink_structure', array( $this, 'clean_languages_cache' ) );
32 83 add_action( 'update_option_siteurl', array( $this, 'clean_languages_cache' ) );
33 84 add_action( 'update_option_home', array( $this, 'clean_languages_cache' ) );
@@ -33,106 +84,144 @@
33 84 add_action( 'update_option_home', array( $this, 'clean_languages_cache' ) );
34 85
35 86 add_filter( 'get_terms_args', array( $this, 'get_terms_args' ) );
36 87
37 - // Just in case someone would like to display the language description ;- )
88 + // Just in case someone would like to display the language description ;).
38 89 add_filter( 'language_description', '__return_empty_string' );
39 90 }
40 91
41 92 /**
42 - * Returns the list of available languages
43 - * caches the list in a db transient ( except flags ), unless PLL_CACHE_LANGUAGES is set to false
44 - * caches the list ( with flags ) in the private property $languages
93 + * Checks if there are languages or not.
45 94 *
46 - * List of parameters accepted in $args:
95 + * @since 3.3
47 96 *
48 - * hide_empty => hides languages with no posts if set to true ( defaults to false )
49 - * fields => return only that field if set ( see PLL_Language for a list of fields )
97 + * @return bool True if there are, false otherwise.
98 + */
99 + public function has_languages() {
100 + if ( ! empty( $this->cache->get( 'languages' ) ) ) {
101 + return true;
102 + }
103 +
104 + if ( ! empty( get_transient( 'pll_languages_list' ) ) ) {
105 + return true;
106 + }
107 +
108 + return ! empty( $this->get_language_terms() );
109 + }
110 +
111 + /**
112 + * Returns the list of available languages.
113 + * - Stores the list in a db transient (except flags), unless `PLL_CACHE_LANGUAGES` is set to false.
114 + * - Caches the list (with flags) in a `PLL_Cache` object.
50 115 *
51 116 * @since 0.1
52 117 *
53 - * @param array $args
54 - * @return array|string|int list of PLL_Language objects or PLL_Language object properties
118 + * @param array $args {
119 + * @type bool $hide_empty Hides languages with no posts if set to `true` (defaults to `false`).
120 + * @type bool $hide_default Hides default language from the list (default to `false`).
121 + * @type string $fields Returns only that field if set; {@see PLL_Language} for a list of fields.
122 + * }
123 + * @return array List of PLL_Language objects or PLL_Language object properties.
55 124 */
56 125 public function get_languages_list( $args = array() ) {
57 - if ( false === $languages = $this->cache->get( 'languages' ) ) {
126 + if ( ! $this->are_languages_ready() ) {
127 + _doing_it_wrong(
128 + __METHOD__ . '()',
129 + "It must not be called before the hook 'pll_pre_init'.",
130 + '3.4'
131 + );
132 + }
58 133
59 - // Create the languages from taxonomies
60 - if ( ( defined( 'PLL_CACHE_LANGUAGES' ) && ! PLL_CACHE_LANGUAGES ) || false === ( $languages = get_transient( 'pll_languages_list' ) ) ) {
61 - $languages = get_terms( 'language', array( 'hide_empty' => false, 'orderby' => 'term_group' ) );
62 - $languages = empty( $languages ) || is_wp_error( $languages ) ? array() : $languages;
134 + $languages = $this->cache->get( 'languages' );
63 135
64 - $term_languages = get_terms( 'term_language', array( 'hide_empty' => false ) );
65 - $term_languages = empty( $term_languages ) || is_wp_error( $term_languages ) ?
66 - array() : array_combine( wp_list_pluck( $term_languages, 'slug' ), $term_languages );
136 + if ( ! is_array( $languages ) ) {
137 + // Bail out early if languages are currently created to avoid an infinite loop.
138 + if ( $this->is_creating_language_objects ) {
139 + return array();
140 + }
67 141
68 - if ( ! empty( $languages ) && ! empty( $term_languages ) ) {
69 - // Don't use array_map + create_function to instantiate an autoloaded class as it breaks badly in old versions of PHP
70 - foreach ( $languages as $k => $v ) {
71 - $languages[ $k ] = new PLL_Language( $v, $term_languages[ 'pll_' . $v->slug ] );
72 - }
142 + $this->is_creating_language_objects = true;
73 143
74 - // We will need the languages list to allow its access in the filter below
75 - $this->cache->set( 'languages', $languages );
144 + if ( ! pll_get_constant( 'PLL_CACHE_LANGUAGES', true ) ) {
145 + // Create the languages from taxonomies.
146 + $languages = $this->get_languages_from_taxonomies();
147 + } else {
148 + $languages = get_transient( 'pll_languages_list' );
76 149
77 - /**
78 - * Filter the list of languages *before* it is stored in the persistent cache
79 - * /!\ this filter is fired *before* the $polylang object is available
80 - *
81 - * @since 1.7.5
82 - *
83 - * @param array $languages the list of language objects
84 - * @param object $model PLL_Model object
85 - */
86 - $languages = apply_filters( 'pll_languages_list', $languages, $this );
150 + if ( empty( $languages ) || ! is_array( $languages ) || empty( reset( $languages )['term_props'] ) ) { // Test `term_props` in case we got a transient older than 3.4.
151 + // Create the languages from taxonomies.
152 + $languages = $this->get_languages_from_taxonomies();
153 + } else {
154 + // Create the languages directly from arrays stored in the transient.
155 + $languages = array_map(
156 + array( new PLL_Language_Factory( $this->options ), 'get' ),
157 + $languages
158 + );
87 159
88 - // Don't store directly objects as it badly break with some hosts ( GoDaddy ) due to race conditions when using object cache
89 - // Thanks to captin411 for catching this!
90 - // See https://wordpress.org/support/topic/fatal-error-pll_model_languages_list?replies=8#post-6782255;
91 - set_transient( 'pll_languages_list', array_map( 'get_object_vars', $languages ) );
92 - }
93 - else {
94 - $languages = array(); // In case something went wrong
95 - }
96 - }
160 + // Remove potential empty language.
161 + $languages = array_filter( $languages );
97 162
98 - // Create the languages directly from arrays stored in transients
99 - else {
100 - foreach ( $languages as $k => $v ) {
101 - $languages[ $k ] = new PLL_Language( $v );
163 + // Re-index.
164 + $languages = array_values( $languages );
102 165 }
103 166 }
104 167
105 - // Custom flags
106 - if ( ! PLL_ADMIN ) {
107 - foreach ( $languages as $language ) {
108 - $language->set_custom_flag();
109 - }
110 - }
111 -
112 168 /**
113 - * Filter the list of languages *after* it is stored in the persistent cache
114 - * /!\ this filter is fired *before* the $polylang object is available
169 + * Filters the list of languages *after* it is stored in the persistent cache.
170 + * /!\ This filter is fired *before* the $polylang object is available.
115 171 *
116 172 * @since 1.8
173 + * @since 3.4 Deprecated. If you used this hook to filter URLs, you may hook `'site_url'` instead.
174 + * @deprecated
117 175 *
118 - * @param array $languages the list of language objects
176 + * @param PLL_Language[] $languages The list of language objects.
119 177 */
120 - $languages = apply_filters( 'pll_after_languages_cache', $languages );
121 - $this->cache->set( 'languages', $languages );
178 + $languages = apply_filters_deprecated( 'pll_after_languages_cache', array( $languages ), '3.4' );
179 +
180 + if ( $this->are_languages_ready() ) {
181 + $this->cache->set( 'languages', $languages );
182 + }
183 +
184 + $this->is_creating_language_objects = false;
122 185 }
123 186
124 - $args = wp_parse_args( $args, array( 'hide_empty' => false ) );
187 + $languages = array_filter(
188 + $languages,
189 + function ( $lang ) use ( $args ) {
190 + $keep_empty = empty( $args['hide_empty'] ) || $lang->get_tax_prop( 'language', 'count' );
191 + $keep_default = empty( $args['hide_default'] ) || ! $lang->is_default;
192 + return $keep_empty && $keep_default;
193 + }
194 + );
125 195
126 - // Remove empty languages if requested
127 - if ( $args['hide_empty'] ) {
128 - $languages = wp_list_filter( $languages, array( 'count' => 0 ), 'NOT' );
129 - }
196 + $languages = array_values( $languages ); // Re-index.
130 197
131 198 return empty( $args['fields'] ) ? $languages : wp_list_pluck( $languages, $args['fields'] );
132 199 }
133 200
134 201 /**
202 + * Tells if {@see PLL_Model::get_languages_list()} can be used.
203 + *
204 + * @since 3.4
205 + *
206 + * @return bool
207 + */
208 + public function are_languages_ready() {
209 + return $this->languages_ready;
210 + }
211 +
212 + /**
213 + * Sets the internal property `$languages_ready` to `true`, telling that {@see PLL_Model::get_languages_list()} can be used.
214 + *
215 + * @since 3.4
216 + *
217 + * @return void
218 + */
219 + public function set_languages_ready() {
220 + $this->languages_ready = true;
221 + }
222 +
223 + /**
135 224 * Cleans language cache
136 225 * can be called directly with no parameter
137 226 * called by the 'edited_term_taxonomy' filter with 2 parameters when count needs to be updated
138 227 *
@@ -139,11 +228,12 @@
139 228 * @since 1.2
140 229 *
141 230 * @param int $term not used
142 231 * @param string $taxonomy taxonomy name
232 + * @return void
143 233 */
144 234 public function clean_languages_cache( $term = 0, $taxonomy = null ) {
145 - if ( empty( $taxonomy ) || 'language' == $taxonomy ) {
235 + if ( empty( $taxonomy ) || 'language' === $taxonomy ) {
146 236 delete_transient( 'pll_languages_list' );
147 237 $this->cache->clean();
148 238 }
149 239 }
@@ -156,9 +246,11 @@
156 246 * @param array $args WP_Term_Query arguments
157 247 * @return array
158 248 */
159 249 public function get_terms_args( $args ) {
160 - if ( isset( $args['taxonomy'] ) && ! array_diff( (array) $args['taxonomy'], array( 'language', 'term_language', 'post_translations', 'term_translations' ) ) ) {
250 + $taxonomies = $this->translatable_objects->get_taxonomy_names();
251 +
252 + if ( isset( $args['taxonomy'] ) && ! array_diff( (array) $args['taxonomy'], $taxonomies ) ) {
161 253 $args['update_term_meta_cache'] = false;
162 254 }
163 255 return $args;
164 256 }
@@ -163,42 +255,67 @@
163 255 return $args;
164 256 }
165 257
166 258 /**
167 - * Returns the language by its term_id, tl_term_id, slug or locale
259 + * Returns the language by its term_id, tl_term_id, slug or locale.
168 260 *
169 261 * @since 0.1
262 + * @since 3.4 Allow to get a language by `term_taxonomy_id`.
170 263 *
171 - * @param int|string $value term_id, tl_term_id, slug or locale of the queried language
172 - * @return object|bool PLL_Language object, false if no language found
264 + * @param mixed $value `term_id`, `term_taxonomy_id`, `slug`, `locale`, or `w3c` of the queried language.
265 + * `term_id` and `term_taxonomy_id` can be fetched for any language taxonomy.
266 + * /!\ For the `term_taxonomy_id`, prefix the ID by `tt:` (ex: `"tt:{$tt_id}"`),
267 + * this is to prevent confusion between `term_id` and `term_taxonomy_id`.
268 + * @return PLL_Language|false Language object, false if no language found.
173 269 */
174 270 public function get_language( $value ) {
175 271 if ( is_object( $value ) ) {
176 - return $value instanceof PLL_Language ? $value : $this->get_language( $value->term_id ); // will force cast to PLL_Language
272 + return $value instanceof PLL_Language ? $value : $this->get_language( $value->term_id ); // Will force cast to PLL_Language.
177 273 }
178 274
179 - if ( false === $return = $this->cache->get( 'language:' . $value ) ) {
180 - foreach ( $this->get_languages_list() as $lang ) {
181 - $this->cache->set( 'language:' . $lang->term_id, $lang );
182 - $this->cache->set( 'language:' . $lang->tl_term_id, $lang );
183 - $this->cache->set( 'language:' . $lang->slug, $lang );
184 - $this->cache->set( 'language:' . $lang->locale, $lang );
185 - $this->cache->set( 'language:' . $lang->w3c, $lang );
275 + $return = $this->cache->get( 'language:' . $value );
276 +
277 + if ( $return instanceof PLL_Language ) {
278 + return $return;
279 + }
280 +
281 + foreach ( $this->get_languages_list() as $lang ) {
282 + foreach ( $lang->get_tax_props() as $props ) {
283 + $this->cache->set( 'language:' . $props['term_id'], $lang );
284 + $this->cache->set( 'language:tt:' . $props['term_taxonomy_id'], $lang );
186 285 }
187 - $return = $this->cache->get( 'language:' . $value );
286 + $this->cache->set( 'language:' . $lang->slug, $lang );
287 + $this->cache->set( 'language:' . $lang->locale, $lang );
288 + $this->cache->set( 'language:' . $lang->w3c, $lang );
188 289 }
189 290
190 - return $return;
291 + /** @var PLL_Language|false */
292 + return $this->cache->get( 'language:' . $value );
191 293 }
192 294
193 295 /**
194 - * Adds terms clauses to get_terms to filter them by languages - used in both frontend and admin
296 + * Returns the default language.
195 297 *
298 + * @since 3.4
299 + *
300 + * @return PLL_Language|false Default language object, `false` if no language found.
301 + */
302 + public function get_default_language() {
303 + if ( empty( $this->options['default_lang'] ) ) {
304 + return false;
305 + }
306 +
307 + return $this->get_language( $this->options['default_lang'] );
308 + }
309 +
310 + /**
311 + * Adds terms clauses to the term query to filter them by languages.
312 + *
196 313 * @since 1.2
197 314 *
198 - * @param array $clauses the list of sql clauses in terms query
199 - * @param object $lang PLL_Language object
200 - * @return array modified list of clauses
315 + * @param string[] $clauses The list of sql clauses in terms query.
316 + * @param PLL_Language|false $lang PLL_Language object.
317 + * @return string[] Modified list of clauses.
201 318 */
202 319 public function terms_clauses( $clauses, $lang ) {
203 320 if ( ! empty( $lang ) && false === strpos( $clauses['join'], 'pll_tr' ) ) {
204 321 $clauses['join'] .= $this->term->join_clause();
@@ -207,119 +324,78 @@
207 324 return $clauses;
208 325 }
209 326
210 327 /**
211 - * Returns post types that need to be translated
212 - * the post types list is cached for better better performance
213 - * wait for 'after_setup_theme' to apply the cache to allow themes adding the filter in functions.php
328 + * Returns post types that need to be translated.
329 + * The post types list is cached for better better performance.
330 + * The method waits for 'after_setup_theme' to apply the cache
331 + * to allow themes adding the filter in functions.php.
214 332 *
215 333 * @since 1.2
216 334 *
217 - * @param bool $filter true if we should return only valid registered post types
218 - * @return array post type names for which Polylang manages languages and translations
335 + * @param bool $filter True if we should return only valid registered post types.
336 + * @return string[] Post type names for which Polylang manages languages and translations.
219 337 */
220 338 public function get_translated_post_types( $filter = true ) {
221 - if ( false === $post_types = $this->cache->get( 'post_types' ) ) {
222 - $post_types = array( 'post' => 'post', 'page' => 'page', 'wp_block' => 'wp_block' );
223 -
224 - if ( ! empty( $this->options['media_support'] ) ) {
225 - $post_types['attachment'] = 'attachment';
226 - }
227 -
228 - if ( ! empty( $this->options['post_types'] ) && is_array( $this->options['post_types'] ) ) {
229 - $post_types = array_merge( $post_types, array_combine( $this->options['post_types'], $this->options['post_types'] ) );
230 - }
231 -
232 - /**
233 - * Filter the list of post types available for translation.
234 - * The default are post types which have the parameter ‘public’ set to true.
235 - * The filter must be added soon in the WordPress loading process:
236 - * in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes.
237 - *
238 - * @since 0.8
239 - *
240 - * @param array $post_types list of post type names
241 - * @param bool $is_settings true when displaying the list of custom post types in Polylang settings
242 - */
243 - $post_types = apply_filters( 'pll_get_post_types', $post_types, false );
244 -
245 - if ( did_action( 'after_setup_theme' ) ) {
246 - $this->cache->set( 'post_types', $post_types );
247 - }
248 - }
249 -
250 - return $filter ? array_intersect( $post_types, get_post_types() ) : $post_types;
339 + return $this->translatable_objects->get( 'post' )->get_translated_object_types( $filter );
251 340 }
252 341
253 342 /**
254 - * Returns true if Polylang manages languages and translations for this post type
343 + * Returns true if Polylang manages languages and translations for this post type.
255 344 *
256 345 * @since 1.2
257 346 *
258 - * @param string|array $post_type post type name or array of post type names
347 + * @param string|string[] $post_type Post type name or array of post type names.
259 348 * @return bool
260 349 */
261 350 public function is_translated_post_type( $post_type ) {
262 - $post_types = $this->get_translated_post_types( false );
263 - return ( is_array( $post_type ) && array_intersect( $post_type, $post_types ) || in_array( $post_type, $post_types ) || 'any' === $post_type && ! empty( $post_types ) );
351 + if ( empty( array_filter( (array) $post_type ) ) ) {
352 + return false;
353 + }
354 +
355 + /** @var non-empty-array<non-empty-string>|non-empty-string $post_type */
356 + return $this->translatable_objects->get( 'post' )->is_translated_object_type( $post_type );
264 357 }
265 358
266 359 /**
267 - * Return taxonomies that need to be translated
360 + * Returns taxonomies that need to be translated.
361 + * The taxonomies list is cached for better better performance.
362 + * The method waits for 'after_setup_theme' to apply the cache
363 + * to allow themes adding the filter in functions.php.
268 364 *
269 365 * @since 1.2
270 366 *
271 - * @param bool $filter true if we should return only valid registered taxonomies
272 - * @return array array of registered taxonomy names for which Polylang manages languages and translations
367 + * @param bool $filter True if we should return only valid registered taxonomies.
368 + * @return string[] Array of registered taxonomy names for which Polylang manages languages and translations.
273 369 */
274 370 public function get_translated_taxonomies( $filter = true ) {
275 - if ( false === $taxonomies = $this->cache->get( 'taxonomies' ) ) {
276 - $taxonomies = array( 'category' => 'category', 'post_tag' => 'post_tag' );
277 -
278 - if ( ! empty( $this->options['taxonomies'] ) && is_array( $this->options['taxonomies'] ) ) {
279 - $taxonomies = array_merge( $taxonomies, array_combine( $this->options['taxonomies'], $this->options['taxonomies'] ) );
280 - }
281 -
282 - /**
283 - * Filter the list of taxonomies available for translation.
284 - * The default are taxonomies which have the parameter ‘public’ set to true.
285 - * The filter must be added soon in the WordPress loading process:
286 - * in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes.
287 - *
288 - * @since 0.8
289 - *
290 - * @param array $taxonomies list of taxonomy names
291 - * @param bool $is_settings true when displaying the list of custom taxonomies in Polylang settings
292 - */
293 - $taxonomies = apply_filters( 'pll_get_taxonomies', $taxonomies, false );
294 - if ( did_action( 'after_setup_theme' ) ) {
295 - $this->cache->set( 'taxonomies', $taxonomies );
296 - }
297 - }
298 -
299 - return $filter ? array_intersect( $taxonomies, get_taxonomies() ) : $taxonomies;
371 + return $this->translatable_objects->get( 'term' )->get_translated_object_types( $filter );
300 372 }
301 373
302 374 /**
303 - * Returns true if Polylang manages languages and translations for this taxonomy
375 + * Returns true if Polylang manages languages and translations for this taxonomy.
304 376 *
305 377 * @since 1.2
306 378 *
307 - * @param string|array $tax taxonomy name or array of taxonomy names
379 + * @param string|string[] $tax Taxonomy name or array of taxonomy names.
308 380 * @return bool
309 381 */
310 382 public function is_translated_taxonomy( $tax ) {
311 - $taxonomies = $this->get_translated_taxonomies( false );
312 - return ( is_array( $tax ) && array_intersect( $tax, $taxonomies ) || in_array( $tax, $taxonomies ) );
383 + if ( empty( array_filter( (array) $tax ) ) ) {
384 + return false;
385 + }
386 +
387 + /** @var non-empty-array<non-empty-string>|non-empty-string $tax */
388 + return $this->translatable_objects->get( 'term' )->is_translated_object_type( $tax );
313 389 }
314 390
315 391 /**
316 - * Return taxonomies that need to be filtered ( post_format like )
392 + * Return taxonomies that need to be filtered (post_format like).
317 393 *
318 394 * @since 1.7
319 395 *
320 - * @param bool $filter true if we should return only valid registered taxonomies
321 - * @return array array of registered taxonomy names
396 + * @param bool $filter True if we should return only valid registered taxonomies.
397 + * @return string[] Array of registered taxonomy names.
322 398 */
323 399 public function get_filtered_taxonomies( $filter = true ) {
324 400 if ( did_action( 'after_setup_theme' ) ) {
325 401 static $taxonomies = null;
@@ -328,9 +404,9 @@
328 404 if ( empty( $taxonomies ) ) {
329 405 $taxonomies = array( 'post_format' => 'post_format' );
330 406
331 407 /**
332 - * Filter the list of taxonomies not translatable but filtered by language.
408 + * Filters the list of taxonomies not translatable but filtered by language.
333 409 * Includes only the post format by default
334 410 * The filter must be added soon in the WordPress loading process:
335 411 * in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes.
336 412 *
@@ -335,10 +411,10 @@
335 411 * in a function hooked to ‘plugins_loaded’ or directly in functions.php for themes.
336 412 *
337 413 * @since 1.7
338 414 *
339 - * @param array $taxonomies list of taxonomy names
340 - * @param bool $is_settings true when displaying the list of custom taxonomies in Polylang settings
415 + * @param string[] $taxonomies List of taxonomy names.
416 + * @param bool $is_settings True when displaying the list of custom taxonomies in Polylang settings.
341 417 */
342 418 $taxonomies = apply_filters( 'pll_filtered_taxonomies', $taxonomies, false );
343 419 }
344 420
@@ -345,13 +421,13 @@
345 421 return $filter ? array_intersect( $taxonomies, get_taxonomies() ) : $taxonomies;
346 422 }
347 423
348 424 /**
349 - * Returns true if Polylang filters this taxonomy per language
425 + * Returns true if Polylang filters this taxonomy per language.
350 426 *
351 427 * @since 1.7
352 428 *
353 - * @param string|array $tax taxonomy name or array of taxonomy names
429 + * @param string|string[] $tax Taxonomy name or array of taxonomy names.
354 430 * @return bool
355 431 */
356 432 public function is_filtered_taxonomy( $tax ) {
357 433 $taxonomies = $this->get_filtered_taxonomies( false );
@@ -358,85 +434,96 @@
358 434 return ( is_array( $tax ) && array_intersect( $tax, $taxonomies ) || in_array( $tax, $taxonomies ) );
359 435 }
360 436
361 437 /**
362 - * Returns the query vars of all filtered taxonomies
438 + * Returns the query vars of all filtered taxonomies.
363 439 *
364 440 * @since 1.7
365 441 *
366 - * @return array
442 + * @return string[]
367 443 */
368 444 public function get_filtered_taxonomies_query_vars() {
369 445 $query_vars = array();
370 446 foreach ( $this->get_filtered_taxonomies() as $filtered_tax ) {
371 447 $tax = get_taxonomy( $filtered_tax );
372 - $query_vars[] = $tax->query_var;
448 + if ( ! empty( $tax ) && is_string( $tax->query_var ) ) {
449 + $query_vars[] = $tax->query_var;
450 + }
373 451 }
374 452 return $query_vars;
375 453 }
376 454
377 455 /**
378 - * Create a default category for a language
456 + * It is possible to have several terms with the same name in the same taxonomy ( one per language )
457 + * but the native term_exists() will return true even if only one exists.
458 + * So here the function adds the language parameter.
379 459 *
380 - * @since 1.2
460 + * @since 1.4
381 461 *
382 - * @param object|string|int $lang language
462 + * @param string $term_name The term name.
463 + * @param string $taxonomy Taxonomy name.
464 + * @param int $parent Parent term id.
465 + * @param string|PLL_Language $language The language slug or object.
466 + * @return int The `term_id` of the found term. 0 otherwise.
467 + *
468 + * @phpstan-return int<0, max>
383 469 */
384 - public function create_default_category( $lang ) {
385 - $lang = $this->get_language( $lang );
470 + public function term_exists( $term_name, $taxonomy, $parent, $language ) {
471 + global $wpdb;
386 472
387 - // create a new category
388 - // FIXME this is translated in admin language when we would like it in $lang
389 - $cat_name = __( 'Uncategorized', 'polylang' );
390 - $cat_slug = sanitize_title( $cat_name . '-' . $lang->slug );
391 - $cat = wp_insert_term( $cat_name, 'category', array( 'slug' => $cat_slug ) );
473 + $language = $this->get_language( $language );
474 + if ( empty( $language ) ) {
475 + return 0;
476 + }
392 477
393 - // check that the category was not previously created ( in case the language was deleted and recreated )
394 - $cat = isset( $cat->error_data['term_exists'] ) ? $cat->error_data['term_exists'] : $cat['term_id'];
478 + $term_name = trim( wp_unslash( $term_name ) );
479 + $term_name = _wp_specialchars( $term_name );
395 480
396 - // set language
397 - $this->term->set_language( (int) $cat, $lang );
481 + $select = "SELECT t.term_id FROM $wpdb->terms AS t";
482 + $join = " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
483 + $join .= $this->term->join_clause();
484 + $where = $wpdb->prepare( ' WHERE tt.taxonomy = %s AND t.name = %s', $taxonomy, $term_name );
485 + $where .= $this->term->where_clause( $language );
398 486
399 - // this is a translation of the default category
400 - $default = (int) get_option( 'default_category' );
401 - $translations = $this->term->get_translations( $default );
402 - if ( empty( $translations ) ) {
403 - if ( $lg = $this->term->get_language( $default ) ) {
404 - $translations[ $lg->slug ] = $default;
405 - }
406 - else {
407 - $translations = array();
408 - }
487 + if ( $parent > 0 ) {
488 + $where .= $wpdb->prepare( ' AND tt.parent = %d', $parent );
409 489 }
410 490
411 - $this->term->save_translations( (int) $cat, $translations );
491 + // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
492 + $term_id = $wpdb->get_var( $select . $join . $where );
493 + return max( 0, (int) $term_id );
412 494 }
413 495
414 496 /**
415 - * It is possible to have several terms with the same name in the same taxonomy ( one per language )
416 - * but the native term_exists will return true even if only one exists
417 - * so here the function adds the language parameter
497 + * Checks if a term slug exists in a given language, taxonomy, hierarchy.
418 498 *
419 - * @since 1.4
499 + * @since 1.9
500 + * @since 2.8 Moved from PLL_Share_Term_Slug::term_exists() to PLL_Model::term_exists_by_slug().
420 501 *
421 - * @param string $term_name the term name
422 - * @param string $taxonomy taxonomy name
423 - * @param int $parent parent term id
424 - * @param string|object $language the language slug or object
425 - * @return null|int the term_id of the found term
502 + * @param string $slug The term slug to test.
503 + * @param string|PLL_Language $language The language slug or object.
504 + * @param string $taxonomy Optional taxonomy name.
505 + * @param int $parent Optional parent term id.
506 + * @return int The `term_id` of the found term. 0 otherwise.
426 507 */
427 - public function term_exists( $term_name, $taxonomy, $parent, $language ) {
508 + public function term_exists_by_slug( $slug, $language, $taxonomy = '', $parent = 0 ) {
428 509 global $wpdb;
429 510
430 - $term_name = trim( wp_unslash( $term_name ) );
431 - $term_name = _wp_specialchars( $term_name );
511 + $language = $this->get_language( $language );
512 + if ( empty( $language ) ) {
513 + return 0;
514 + }
432 515
433 - $select = "SELECT t.term_id FROM $wpdb->terms AS t";
434 - $join = " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id";
435 - $join .= $this->term->join_clause();
436 - $where = $wpdb->prepare( ' WHERE tt.taxonomy = %s AND t.name = %s', $taxonomy, $term_name );
437 - $where .= $this->term->where_clause( $this->get_language( $language ) );
516 + $select = "SELECT t.term_id FROM {$wpdb->terms} AS t";
517 + $join = " INNER JOIN {$wpdb->term_taxonomy} AS tt ON t.term_id = tt.term_id";
518 + $join .= $this->term->join_clause();
519 + $where = $wpdb->prepare( ' WHERE t.slug = %s', $slug );
520 + $where .= $this->term->where_clause( $language );
438 521
522 + if ( ! empty( $taxonomy ) ) {
523 + $where .= $wpdb->prepare( ' AND tt.taxonomy = %s', $taxonomy );
524 + }
525 +
439 526 if ( $parent > 0 ) {
440 527 $where .= $wpdb->prepare( ' AND tt.parent = %d', $parent );
441 528 }
442 529
@@ -443,21 +530,47 @@
443 530 // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
444 531 return $wpdb->get_var( $select . $join . $where );
445 532 }
446 533
534 +
447 535 /**
448 - * Gets the number of posts per language in a date, author or post type archive.
536 + * Returns the number of posts per language in a date, author or post type archive.
449 537 *
450 538 * @since 1.2
451 539 *
452 - * @param object $lang PLL_Language instance.
453 - * @param array $q WP_Query arguments ( accepted: post_type, m, year, monthnum, day, author, author_name, post_format, post_status ).
540 + * @param PLL_Language $lang PLL_Language instance.
541 + * @param array $q {
542 + * WP_Query arguments:
543 + *
544 + * @type string|string[] $post_type Post type or array of post types.
545 + * @type int $m Combination YearMonth. Accepts any four-digit year and month.
546 + * @type int $year Four-digit year.
547 + * @type int $monthnum Two-digit month.
548 + * @type int $day Day of the month.
549 + * @type int $author Author id.
550 + * @type string $author_name User 'user_nicename'.
551 + * @type string $post_format Post format.
552 + * @type string $post_status Post status.
553 + * }
454 554 * @return int
555 + *
556 + * @phpstan-param array{
557 + * post_type?: non-falsy-string|array<non-falsy-string>,
558 + * post_status?: non-falsy-string,
559 + * m?: numeric-string,
560 + * year?: positive-int,
561 + * monthnum?: int<1, 12>,
562 + * day?: int<1, 31>,
563 + * author?: int<1, max>,
564 + * author_name?: non-falsy-string,
565 + * post_format?: non-falsy-string
566 + * } $q
567 + * @phpstan-return int<0, max>
455 568 */
456 569 public function count_posts( $lang, $q = array() ) {
457 570 global $wpdb;
458 571
459 - $q = wp_parse_args( $q, array( 'post_type' => 'post', 'post_status' => 'publish' ) );
572 + $q = array_merge( array( 'post_type' => 'post', 'post_status' => 'publish' ), $q );
460 573
461 574 if ( ! is_array( $q['post_type'] ) ) {
462 575 $q['post_type'] = array( $q['post_type'] );
463 576 }
@@ -471,17 +584,18 @@
471 584 if ( empty( $q['post_type'] ) ) {
472 585 $q['post_type'] = array( 'post' ); // We *need* a post type.
473 586 }
474 587
475 - $cache_key = 'pll_count_posts_' . md5( maybe_serialize( $q ) );
476 - $counts = wp_cache_get( $cache_key, 'counts' );
588 + $cache_key = $this->cache->get_unique_key( 'pll_count_posts_', $q );
589 + $counts = wp_cache_get( $cache_key, 'counts' );
477 590
478 - if ( false === $counts ) {
479 - $select = "SELECT pll_tr.term_taxonomy_id, COUNT( * ) AS num_posts FROM {$wpdb->posts}";
480 - $join = $this->post->join_clause();
481 - $where = sprintf( " WHERE post_status = '%s'", esc_sql( $q['post_status'] ) );
482 - $where .= sprintf( " AND {$wpdb->posts}.post_type IN ( '%s' )", join( "', '", esc_sql( $q['post_type'] ) ) );
483 - $where .= $this->post->where_clause( $this->get_languages_list() );
591 + if ( ! is_array( $counts ) ) {
592 + $counts = array();
593 + $select = "SELECT pll_tr.term_taxonomy_id, COUNT( * ) AS num_posts FROM {$wpdb->posts}";
594 + $join = $this->post->join_clause();
595 + $where = sprintf( " WHERE post_status = '%s'", esc_sql( $q['post_status'] ) );
596 + $where .= sprintf( " AND {$wpdb->posts}.post_type IN ( '%s' )", implode( "', '", esc_sql( $q['post_type'] ) ) );
597 + $where .= $this->post->where_clause( $this->get_languages_list() );
484 598 $groupby = ' GROUP BY pll_tr.term_taxonomy_id';
485 599
486 600 if ( ! empty( $q['m'] ) ) {
487 601 $q['m'] = '' . preg_replace( '|[^0-9]|', '', $q['m'] );
@@ -536,17 +650,18 @@
536 650
537 651 wp_cache_set( $cache_key, $counts, 'counts' );
538 652 }
539 653
540 - return empty( $counts[ $lang->term_taxonomy_id ] ) ? 0 : $counts[ $lang->term_taxonomy_id ];
654 + $term_taxonomy_id = $lang->get_tax_prop( 'language', 'term_taxonomy_id' );
655 + return empty( $counts[ $term_taxonomy_id ] ) ? 0 : $counts[ $term_taxonomy_id ];
541 656 }
542 657
543 658 /**
544 - * Setup the links model based on options
659 + * Setup the links model based on options.
545 660 *
546 661 * @since 1.2
547 662 *
548 - * @return object implementing "links_model interface"
663 + * @return PLL_Links_Model
549 664 */
550 665 public function get_links_model() {
551 666 $c = array( 'Directory', 'Directory', 'Subdomain', 'Domain' );
552 667 $class = get_option( 'permalink_structure' ) ? 'PLL_Links_' . $c[ $this->options['force_lang'] ] : 'PLL_Links_Default';
@@ -551,14 +666,14 @@
551 666 $c = array( 'Directory', 'Directory', 'Subdomain', 'Domain' );
552 667 $class = get_option( 'permalink_structure' ) ? 'PLL_Links_' . $c[ $this->options['force_lang'] ] : 'PLL_Links_Default';
553 668
554 669 /**
555 - * Filter the links model class to use
556 - * /!\ this filter is fired *before* the $polylang object is available
670 + * Filters the links model class to use.
671 + * /!\ this filter is fired *before* the $polylang object is available.
557 672 *
558 673 * @since 2.1.1
559 674 *
560 - * @param string $class A class name: PLL_Links_Default, PLL_Links_Directory, PLL_Links_Subdomain, PLL_Links_Domain
675 + * @param string $class A class name: PLL_Links_Default, PLL_Links_Directory, PLL_Links_Subdomain, PLL_Links_Domain.
561 676 */
562 677 $class = apply_filters( 'pll_links_model', $class );
563 678
564 679 return new $class( $this );
@@ -564,80 +679,372 @@
564 679 return new $class( $this );
565 680 }
566 681
567 682 /**
568 - * Some backward compatibility with Polylang < 1.8
569 - * allows for example to call $polylang->model->get_post_languages( $post_id ) instead of $polylang->model->post->get_language( $post_id )
570 - * this works but should be slower than the direct call, thus an error is triggered in debug mode
683 + * Returns a list of object IDs without language (used in settings and wizard).
571 684 *
572 - * @since 1.8
685 + * @since 0.9
686 + * @since 2.2.6 Added the `$limit` parameter.
687 + * @since 3.4 Added the `$types` parameter.
573 688 *
574 - * @param string $func Function name
575 - * @param array $args Function arguments
689 + * @param int $limit Optional. Max number of IDs to return. Defaults to -1 (no limit).
690 + * @param string[] $types Optional. Types to handle (@see PLL_Translatable_Object::get_type()). Defaults to
691 + * an empty array (all types).
692 + * @return int[][]|false {
693 + * IDs of objects without language.
694 + *
695 + * @type int[] $posts Array of post ids.
696 + * @type int[] $terms Array of term ids.
697 + * }
698 + *
699 + * @phpstan-param -1|positive-int $limit
576 700 */
577 - public function __call( $func, $args ) {
578 - $f = $func;
701 + public function get_objects_with_no_lang( $limit = -1, array $types = array() ) {
702 + /**
703 + * Filters the max number of IDs to return when searching objects with no language.
704 + * This filter can be used to decrease the memory usage in case the number of objects
705 + * without language is too big. Using a negative value is equivalent to have no limit.
706 + *
707 + * @since 2.2.6
708 + * @since 3.4 Added the `$types` parameter.
709 + *
710 + * @param int $limit Max number of IDs to retrieve from the database.
711 + * @param string[] $types Types to handle (@see PLL_Translatable_Object::get_type()). An empty array means all
712 + * types.
713 + */
714 + $limit = apply_filters( 'get_objects_with_no_lang_limit', $limit, $types );
715 + $limit = $limit < 1 ? -1 : max( (int) $limit, 1 );
716 + $objects = array();
579 717
580 - switch ( $func ) {
581 - case 'get_object_term':
582 - $o = ( false === strpos( $args[1], 'term' ) ) ? 'post' : 'term';
583 - break;
718 + foreach ( $this->translatable_objects as $type => $object ) {
719 + if ( ! empty( $types ) && ! in_array( $type, $types, true ) ) {
720 + continue;
721 + }
584 722
585 - case 'save_translations':
586 - case 'delete_translation':
587 - case 'get_translations':
588 - case 'get_translation':
589 - case 'join_clause':
590 - $o = ( 'post' == $args[0] || $this->is_translated_post_type( $args[0] ) ) ? 'post' : ( 'term' == $args[0] || $this->is_translated_taxonomy( $args[0] ) ? 'term' : false );
591 - unset( $args[0] );
592 - break;
723 + $ids = $object->get_objects_with_no_lang( $limit );
593 724
594 - case 'set_post_language':
595 - case 'get_post_language':
596 - case 'set_term_language':
597 - case 'get_term_language':
598 - case 'delete_term_language':
599 - case 'get_post':
600 - case 'get_term':
601 - $str = explode( '_', $func );
602 - $f = empty( $str[2] ) ? $str[0] : $str[0] . '_' . $str[2];
603 - $o = $str[1];
604 - break;
725 + if ( empty( $ids ) ) {
726 + continue;
727 + }
605 728
606 - case 'where_clause':
607 - case 'get_objects_in_language':
608 - $o = $args[1];
609 - unset( $args[1] );
610 - break;
729 + // The trailing 's' in the array key is for backward compatibility.
730 + $objects[ "{$type}s" ] = $ids;
611 731 }
612 732
613 - if ( ! empty( $o ) && is_object( $this->$o ) && method_exists( $this->$o, $f ) ) {
614 - if ( WP_DEBUG ) {
615 - $debug = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions
616 - $i = 1 + empty( $debug[1]['line'] ); // the file and line are in $debug[2] if the function was called using call_user_func
733 + $objects = ! empty( $objects ) ? $objects : false;
617 734
618 - trigger_error( // phpcs:ignore WordPress.PHP.DevelopmentFunctions
619 - sprintf(
620 - '%1$s was called incorrectly in %4$s on line %5$s: the call to $polylang->model->%1$s() has been deprecated in Polylang 1.8, use PLL()->model->%2$s->%3$s() instead.' . "\nError handler",
621 - esc_html( $func ),
622 - esc_html( $o ),
623 - esc_html( $f ),
624 - esc_html( $debug[ $i ]['file'] ),
625 - absint( $debug[ $i ]['line'] )
626 - )
627 - );
735 + /**
736 + * Filters the list of IDs of untranslated objects.
737 + *
738 + * @since 0.9
739 + * @since 3.4 Added the `$limit` and `$types` parameters.
740 + *
741 + * @param int[][]|false $objects List of lists of object IDs, `false` if no IDs found.
742 + * @param int $limit Max number of IDs to retrieve from the database.
743 + * @param string[] $types Types to handle (@see PLL_Translatable_Object::get_type()). An empty array
744 + * means all types.
745 + */
746 + return apply_filters( 'pll_get_objects_with_no_lang', $objects, $limit, $types );
747 + }
748 +
749 + /**
750 + * Returns ids of post without language.
751 + *
752 + * @since 3.1
753 + *
754 + * @param string|string[] $post_types A translated post type or an array of translated post types.
755 + * @param int $limit Max number of objects to return. `-1` to return all of them.
756 + * @return int[]
757 + *
758 + * @phpstan-param -1|positive-int $limit
759 + * @phpstan-return list<positive-int>
760 + */
761 + public function get_posts_with_no_lang( $post_types, $limit ) {
762 + return $this->translatable_objects->get( 'post' )->get_objects_with_no_lang( $limit, (array) $post_types );
763 + }
764 +
765 + /**
766 + * Returns ids of terms without language.
767 + *
768 + * @since 3.1
769 + *
770 + * @param string|string[] $taxonomies A translated taxonomy or an array of taxonomies post types.
771 + * @param int $limit Max number of objects to return. `-1` to return all of them.
772 + * @return int[]
773 + *
774 + * @phpstan-param -1|positive-int $limit
775 + * @phpstan-return list<positive-int>
776 + */
777 + public function get_terms_with_no_lang( $taxonomies, $limit ) {
778 + return $this->translatable_objects->get( 'term' )->get_objects_with_no_lang( $limit, (array) $taxonomies );
779 + }
780 +
781 + /**
782 + * Assigns the default language to objects in mass.
783 + *
784 + * @since 1.2
785 + * @since 3.4 Moved from PLL_Admin_Model class.
786 + * Removed `$limit` parameter, added `$lang` and `$types` parameters.
787 + *
788 + * @param PLL_Language|null $lang Optional. The language to assign to objects. Defaults to `null` (default language).
789 + * @param string[] $types Optional. Types to handle (@see PLL_Translatable_Object::get_type()). Defaults
790 + * to an empty array (all types).
791 + * @return void
792 + */
793 + public function set_language_in_mass( $lang = null, array $types = array() ) {
794 + if ( ! $lang instanceof PLL_Language ) {
795 + $lang = $this->get_default_language();
796 +
797 + if ( empty( $lang ) ) {
798 + return;
628 799 }
629 - return call_user_func_array( array( $this->$o, $f ), $args );
630 800 }
631 801
632 - $debug = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions
633 - trigger_error( // phpcs:ignore WordPress.PHP.DevelopmentFunctions
634 - sprintf(
635 - 'Call to undefined function PLL()->model->%1$s() in %2$s on line %3$s' . "\nError handler",
636 - esc_html( $func ),
637 - esc_html( $debug[0]['file'] ),
638 - absint( $debug[0]['line'] )
639 - ),
640 - E_USER_ERROR
802 + // 1000 is an arbitrary value that will be filtered by `get_objects_with_no_lang_limit`.
803 + $nolang = $this->get_objects_with_no_lang( 1000, $types );
804 +
805 + if ( empty( $nolang ) ) {
806 + return;
807 + }
808 +
809 + /**
810 + * Keep track of types where we set the language:
811 + * those are types where we may have more items to process if we have more than 1000 items in total.
812 + * This will prevent unnecessary SQL queries in the next recursion: if we have 0 items in this recursion for
813 + * a type, we'll still have 0 in the next one, no need for a new query.
814 + */
815 + $types_with_objects = array();
816 +
817 + foreach ( $this->translatable_objects as $type => $object ) {
818 + if ( empty( $nolang[ "{$type}s" ] ) ) {
819 + continue;
820 + }
821 +
822 + if ( ! empty( $types ) && ! in_array( $type, $types, true ) ) {
823 + continue;
824 + }
825 +
826 + $object->set_language_in_mass( $nolang[ "{$type}s" ], $lang );
827 + $types_with_objects[] = $type;
828 + }
829 +
830 + if ( empty( $types_with_objects ) ) {
831 + return;
832 + }
833 +
834 + $this->set_language_in_mass( $lang, $types_with_objects );
835 + }
836 +
837 + /**
838 + * Filters the ORDERBY clause of the languages query.
839 + *
840 + * This allows to order languages terms by `taxonomy` first then by `term_group` and `term_id`.
841 + * Ordering terms by taxonomy allows not to mix terms between all language taxomonomies.
842 + * Having the "language' taxonomy first is important for {@see PLL_Admin_Model:delete_language()}.
843 + *
844 + * @since 3.2.3
845 + *
846 + * @param string $orderby `ORDERBY` clause of the terms query.
847 + * @param array $args An array of term query arguments.
848 + * @param string[] $taxonomies An array of taxonomy names.
849 + * @return string
850 + */
851 + public function filter_language_terms_orderby( $orderby, $args, $taxonomies ) {
852 + $allowed_taxonomies = $this->translatable_objects->get_taxonomy_names( array( 'language' ) );
853 +
854 + if ( ! is_array( $taxonomies ) || ! empty( array_diff( $taxonomies, $allowed_taxonomies ) ) ) {
855 + return $orderby;
856 + }
857 +
858 + if ( empty( $orderby ) || ! is_string( $orderby ) ) {
859 + return $orderby;
860 + }
861 +
862 + if ( ! preg_match( '@^(?<alias>[^.]+)\.term_group$@', $orderby, $matches ) ) {
863 + return $orderby;
864 + }
865 +
866 + return sprintf( 'tt.taxonomy = \'language\' DESC, %1$s.term_group, %1$s.term_id', $matches['alias'] );
867 + }
868 +
869 + /**
870 + * Maybe adds the missing language terms for 3rd party language taxonomies.
871 + *
872 + * @since 3.4
873 + *
874 + * @return void
875 + */
876 + public function maybe_create_language_terms() {
877 + $registered_taxonomies = array_diff(
878 + $this->translatable_objects->get_taxonomy_names( array( 'language' ) ),
879 + // Exclude the post and term language taxonomies from the list.
880 + array( $this->post->get_tax_language(), $this->term->get_tax_language() )
641 881 );
882 +
883 + if ( empty( $registered_taxonomies ) ) {
884 + // No 3rd party language taxonomies.
885 + return;
886 + }
887 +
888 + // We have at least one 3rd party language taxonomy.
889 + $known_taxonomies = ! empty( $this->options['language_taxonomies'] ) && is_array( $this->options['language_taxonomies'] ) ? $this->options['language_taxonomies'] : array();
890 + $new_taxonomies = array_diff( $registered_taxonomies, $known_taxonomies );
891 +
892 + if ( empty( $new_taxonomies ) ) {
893 + // No new 3rd party language taxonomies.
894 + return;
895 + }
896 +
897 + // We have at least one unknown 3rd party language taxonomy.
898 + foreach ( $this->get_languages_list() as $language ) {
899 + $this->update_secondary_language_terms( $language->slug, $language->name, $language, $new_taxonomies );
900 + }
901 +
902 + // Clear the cache, so the new `term_id` and `term_taxonomy_id` appear in the languages list.
903 + $this->clean_languages_cache();
904 +
905 + // Keep the previous values, so this is triggered only once per taxonomy.
906 + $this->options['language_taxonomies'] = array_merge( $known_taxonomies, $new_taxonomies );
907 + update_option( 'polylang', $this->options );
908 + }
909 +
910 + /**
911 + * Updates or adds new terms for a secondary language taxonomy (aka not 'language').
912 + *
913 + * @since 3.4
914 + *
915 + * @param string $slug Language term slug (with or without the `pll_` prefix).
916 + * @param string $name Language name (label).
917 + * @param PLL_Language|null $language Optional. A language object. Required to update the existing terms.
918 + * @param string[] $taxonomies Optional. List of language taxonomies to deal with. An empty value means
919 + * all of them. Defaults to all taxonomies.
920 + * @return void
921 + *
922 + * @phpstan-param non-empty-string $slug
923 + * @phpstan-param non-empty-string $name
924 + * @phpstan-param array<non-empty-string> $taxonomies
925 + */
926 + protected function update_secondary_language_terms( $slug, $name, PLL_Language $language = null, array $taxonomies = array() ) {
927 + $slug = 0 === strpos( $slug, 'pll_' ) ? $slug : "pll_$slug";
928 +
929 + foreach ( $this->translatable_objects->get_secondary_translatable_objects() as $object ) {
930 + if ( ! empty( $taxonomies ) && ! in_array( $object->get_tax_language(), $taxonomies, true ) ) {
931 + // Not in the list.
932 + continue;
933 + }
934 +
935 + if ( ! empty( $language ) ) {
936 + $term_id = $language->get_tax_prop( $object->get_tax_language(), 'term_id' );
937 + } else {
938 + $term_id = 0;
939 + }
940 +
941 + if ( empty( $term_id ) ) {
942 + // Attempt to repair the language if a term has been deleted by a database cleaning tool.
943 + wp_insert_term( $name, $object->get_tax_language(), array( 'slug' => $slug ) );
944 + continue;
945 + }
946 +
947 + /** @var PLL_Language $language */
948 + if ( "pll_{$language->slug}" !== $slug || $language->name !== $name ) {
949 + // Something has changed.
950 + wp_update_term( $term_id, $object->get_tax_language(), array( 'slug' => $slug, 'name' => $name ) );
951 + }
952 + }
953 + }
954 +
955 + /**
956 + * Returns the list of available languages, based on the language taxonomy terms.
957 + * Stores the list in a db transient and in a `PLL_Cache` object.
958 + *
959 + * @since 3.4
960 + *
961 + * @return PLL_Language[] An array of `PLL_Language` objects, array keys are the type.
962 + *
963 + * @phpstan-return list<PLL_Language>
964 + */
965 + protected function get_languages_from_taxonomies() {
966 + $terms_by_slug = array();
967 +
968 + foreach ( $this->get_language_terms() as $term ) {
969 + // Except for language taxonomy term slugs, remove 'pll_' prefix from the other language taxonomy term slugs.
970 + $key = 'language' === $term->taxonomy ? $term->slug : substr( $term->slug, 4 );
971 + $terms_by_slug[ $key ][ $term->taxonomy ] = $term;
972 + }
973 +
974 + /**
975 + * @var (
976 + * array{
977 + * string: array{
978 + * language: WP_Term,
979 + * }&array<non-empty-string, WP_Term>
980 + * }
981 + * ) $terms_by_slug
982 + */
983 + $languages = array_filter(
984 + array_map(
985 + array( new PLL_Language_Factory( $this->options ), 'get_from_terms' ),
986 + array_values( $terms_by_slug )
987 + )
988 + );
989 +
990 + /**
991 + * Filters the list of languages *before* it is stored in the persistent cache.
992 + * /!\ This filter is fired *before* the $polylang object is available.
993 + *
994 + * @since 1.7.5
995 + * @since 3.4 Deprecated.
996 + * @deprecated
997 + *
998 + * @param PLL_Language[] $languages The list of language objects.
999 + * @param PLL_Model $model PLL_Model object.
1000 + */
1001 + $languages = apply_filters_deprecated( 'pll_languages_list', array( $languages, $this ), '3.4', 'pll_additional_language_data' );
1002 +
1003 + if ( ! $this->are_languages_ready() ) {
1004 + // Do not cache an incomplete list.
1005 + /** @var list<PLL_Language> $languages */
1006 + return $languages;
1007 + }
1008 +
1009 + /**
1010 + * Don't store directly objects as it badly break with some hosts ( GoDaddy ) due to race conditions when using object cache.
1011 + * Thanks to captin411 for catching this!
1012 + *
1013 + * @see https://wordpress.org/support/topic/fatal-error-pll_model_languages_list?replies=8#post-6782255
1014 + */
1015 + $languages_data = array_map(
1016 + function ( $language ) {
1017 + return $language->to_array( 'db' );
1018 + },
1019 + $languages
1020 + );
1021 +
1022 + set_transient( 'pll_languages_list', $languages_data );
1023 +
1024 + /** @var list<PLL_Language> $languages */
1025 + return $languages;
1026 + }
1027 +
1028 + /**
1029 + * Returns the list of existing language terms.
1030 + * - Returns all terms, that are or not assigned to posts.
1031 + * - Terms are ordered by `term_group` and `term_id` (see `PLL_Model->filter_language_terms_orderby()`).
1032 + *
1033 + * @since 3.2.3
1034 + *
1035 + * @return WP_Term[]
1036 + */
1037 + protected function get_language_terms() {
1038 + add_filter( 'get_terms_orderby', array( $this, 'filter_language_terms_orderby' ), 10, 3 );
1039 + $terms = get_terms(
1040 + array(
1041 + 'taxonomy' => $this->translatable_objects->get_taxonomy_names( array( 'language' ) ),
1042 + 'orderby' => 'term_group',
1043 + 'hide_empty' => false,
1044 + )
1045 + );
1046 + remove_filter( 'get_terms_orderby', array( $this, 'filter_language_terms_orderby' ) );
1047 +
1048 + return empty( $terms ) || is_wp_error( $terms ) ? array() : $terms;
642 1049 }
643 1050 }