| 1 |
<?php |
| 2 |
/** |
| 3 |
* @package Polylang |
| 4 |
*/ |
| 5 |
|
| 6 |
/** |
| 7 |
* A class to manage the sychronization of taxonomy terms across posts translations |
| 8 |
* |
| 9 |
* @since 2.3 |
| 10 |
*/ |
| 11 |
class PLL_Sync_Tax { |
| 12 |
|
| 13 |
/** |
| 14 |
* Stores the plugin options. |
| 15 |
* |
| 16 |
* @var array |
| 17 |
*/ |
| 18 |
protected $options; |
| 19 |
|
| 20 |
/** |
| 21 |
* @var PLL_Model |
| 22 |
*/ |
| 23 |
protected $model; |
| 24 |
|
| 25 |
/** |
| 26 |
* Constructor |
| 27 |
* |
| 28 |
* @since 2.3 |
| 29 |
* |
| 30 |
* @param object $polylang |
| 31 |
*/ |
| 32 |
public function __construct( &$polylang ) { |
| 33 |
$this->model = &$polylang->model; |
| 34 |
$this->options = &$polylang->options; |
| 35 |
|
| 36 |
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 ); |
| 37 |
add_action( 'pll_save_term', array( $this, 'create_term' ), 10, 3 ); |
| 38 |
add_action( 'pre_delete_term', array( $this, 'pre_delete_term' ) ); |
| 39 |
add_action( 'delete_term', array( $this, 'delete_term' ) ); |
| 40 |
} |
| 41 |
|
| 42 |
/** |
| 43 |
* Get the list of taxonomies to copy or to synchronize. |
| 44 |
* |
| 45 |
* @since 1.7 |
| 46 |
* @since 2.1 The `$from`, `$to`, `$lang` parameters were added. |
| 47 |
* |
| 48 |
* @param bool $sync True if it is synchronization, false if it is a copy. |
| 49 |
* @param int $from Id of the post from which we copy informations, optional, defaults to null. |
| 50 |
* @param int $to Id of the post to which we paste informations, optional, defaults to null. |
| 51 |
* @param string $lang Language slug, optional, defaults to null. |
| 52 |
* @return string[] List of taxonomy names. |
| 53 |
*/ |
| 54 |
protected function get_taxonomies_to_copy( $sync, $from = null, $to = null, $lang = null ) { |
| 55 |
$taxonomies = ! $sync || in_array( 'taxonomies', $this->options['sync'] ) ? $this->model->get_translated_taxonomies() : array(); |
| 56 |
if ( ! $sync || in_array( 'post_format', $this->options['sync'] ) ) { |
| 57 |
$taxonomies[] = 'post_format'; |
| 58 |
} |
| 59 |
|
| 60 |
/** |
| 61 |
* Filters the taxonomies to copy or synchronize. |
| 62 |
* |
| 63 |
* @since 1.7 |
| 64 |
* @since 2.1 The `$from`, `$to`, `$lang` parameters were added. |
| 65 |
* |
| 66 |
* @param string[] $taxonomies List of taxonomy names. |
| 67 |
* @param bool $sync True if it is synchronization, false if it is a copy. |
| 68 |
* @param int $from Id of the post from which we copy informations. |
| 69 |
* @param int $to Id of the post to which we paste informations. |
| 70 |
* @param string $lang Language slug. |
| 71 |
*/ |
| 72 |
return array_unique( apply_filters( 'pll_copy_taxonomies', $taxonomies, $sync, $from, $to, $lang ) ); |
| 73 |
} |
| 74 |
|
| 75 |
/** |
| 76 |
* When copying or synchronizing terms, translate terms in translatable taxonomies |
| 77 |
* |
| 78 |
* @since 2.3 |
| 79 |
* |
| 80 |
* @param int $object_id Object ID. |
| 81 |
* @param int[] $terms List of terms ids assigned to the source post. |
| 82 |
* @param string $taxonomy Taxonomy name. |
| 83 |
* @param string $lang Language slug. |
| 84 |
* @return int[] List of terms ids to assign to the target post. |
| 85 |
*/ |
| 86 |
protected function maybe_translate_terms( $object_id, $terms, $taxonomy, $lang ) { |
| 87 |
if ( is_array( $terms ) && $this->model->is_translated_taxonomy( $taxonomy ) ) { |
| 88 |
$newterms = array(); |
| 89 |
|
| 90 |
// Convert to term ids if we got tag names |
| 91 |
$strings = array_map( 'is_string', $terms ); |
| 92 |
if ( in_array( true, $strings, true ) ) { |
| 93 |
$terms = get_the_terms( $object_id, $taxonomy ); |
| 94 |
$terms = wp_list_pluck( $terms, 'term_id' ); |
| 95 |
} |
| 96 |
|
| 97 |
foreach ( $terms as $term ) { |
| 98 |
/** |
| 99 |
* Filter the translated term when a post translation is created or synchronized |
| 100 |
* |
| 101 |
* @since 2.3 |
| 102 |
* |
| 103 |
* @param int $tr_term Translated term id |
| 104 |
* @param int $term Source term id |
| 105 |
* @param string $lang Language slug |
| 106 |
*/ |
| 107 |
if ( $term_id = apply_filters( 'pll_maybe_translate_term', $this->model->term->get_translation( $term, $lang ), $term, $lang ) ) { |
| 108 |
$newterms[] = (int) $term_id; // Cast is important otherwise we get 'numeric' tags |
| 109 |
} |
| 110 |
} |
| 111 |
|
| 112 |
return $newterms; |
| 113 |
} |
| 114 |
|
| 115 |
return $terms; // Empty $terms or untranslated taxonomy |
| 116 |
} |
| 117 |
|
| 118 |
/** |
| 119 |
* Maybe copy taxonomy terms from one post to the other. |
| 120 |
* |
| 121 |
* @since 2.6 |
| 122 |
* |
| 123 |
* @param int $object_id Source object ID. |
| 124 |
* @param int $tr_id Target object ID. |
| 125 |
* @param string $lang Target language. |
| 126 |
* @param array $terms An array of object terms. |
| 127 |
* @param string $taxonomy Taxonomy slug. |
| 128 |
* @param bool $append Whether to append new terms to the old terms. |
| 129 |
* @return void |
| 130 |
*/ |
| 131 |
protected function copy_object_terms( $object_id, $tr_id, $lang, $terms, $taxonomy, $append ) { |
| 132 |
$to_copy = $this->get_taxonomies_to_copy( true, $object_id, $tr_id, $lang ); |
| 133 |
|
| 134 |
if ( in_array( $taxonomy, $to_copy ) ) { |
| 135 |
$newterms = $this->maybe_translate_terms( $object_id, $terms, $taxonomy, $lang ); |
| 136 |
|
| 137 |
// For some reasons, the user may have untranslated terms in the translation. Don't forget them. |
| 138 |
if ( $this->model->is_translated_taxonomy( $taxonomy ) ) { |
| 139 |
$tr_terms = get_the_terms( $tr_id, $taxonomy ); |
| 140 |
if ( is_array( $tr_terms ) ) { |
| 141 |
foreach ( $tr_terms as $term ) { |
| 142 |
if ( ! $this->model->term->get_translation( $term->term_id, $this->model->post->get_language( $object_id ) ) ) { |
| 143 |
$newterms[] = (int) $term->term_id; |
| 144 |
} |
| 145 |
} |
| 146 |
} |
| 147 |
} |
| 148 |
|
| 149 |
wp_set_object_terms( $tr_id, $newterms, $taxonomy, $append ); |
| 150 |
} |
| 151 |
|
| 152 |
} |
| 153 |
|
| 154 |
/** |
| 155 |
* When assigning terms to a post, assign translated terms to the translated posts (synchronisation). |
| 156 |
* |
| 157 |
* @since 2.3 |
| 158 |
* |
| 159 |
* @param int $object_id Object ID. |
| 160 |
* @param array $terms An array of object terms. |
| 161 |
* @param int[] $tt_ids An array of term taxonomy IDs. |
| 162 |
* @param string $taxonomy Taxonomy slug. |
| 163 |
* @param bool $append Whether to append new terms to the old terms. |
| 164 |
* @return void |
| 165 |
*/ |
| 166 |
public function set_object_terms( $object_id, $terms, $tt_ids, $taxonomy, $append ) { |
| 167 |
static $avoid_recursion = false; |
| 168 |
$taxonomy_object = get_taxonomy( $taxonomy ); |
| 169 |
|
| 170 |
// Make sure that the taxonomy is registered for a post type |
| 171 |
if ( ! $avoid_recursion && ! empty( $taxonomy_object ) && array_filter( $taxonomy_object->object_type, 'post_type_exists' ) ) { |
| 172 |
$avoid_recursion = true; |
| 173 |
|
| 174 |
$tr_ids = $this->model->post->get_translations( $object_id ); |
| 175 |
|
| 176 |
foreach ( $tr_ids as $lang => $tr_id ) { |
| 177 |
if ( $tr_id !== $object_id ) { |
| 178 |
if ( $this->model->post->current_user_can_synchronize( $object_id ) ) { |
| 179 |
$this->copy_object_terms( $object_id, $tr_id, $lang, $terms, $taxonomy, $append ); |
| 180 |
} else { |
| 181 |
// No permission to synchronize, so let's synchronize in reverse order |
| 182 |
$orig_lang = array_search( $object_id, $tr_ids ); |
| 183 |
$tr_terms = get_the_terms( $tr_id, $taxonomy ); |
| 184 |
|
| 185 |
if ( false === $tr_terms ) { |
| 186 |
$tr_terms = array(); |
| 187 |
} |
| 188 |
|
| 189 |
if ( is_array( $tr_terms ) ) { |
| 190 |
$tr_terms = wp_list_pluck( $tr_terms, 'term_id' ); |
| 191 |
$this->copy_object_terms( $tr_id, $object_id, $orig_lang, $tr_terms, $taxonomy, $append ); |
| 192 |
} |
| 193 |
break; |
| 194 |
} |
| 195 |
} |
| 196 |
} |
| 197 |
|
| 198 |
$avoid_recursion = false; |
| 199 |
} |
| 200 |
} |
| 201 |
|
| 202 |
/** |
| 203 |
* Copy terms fron one post to a translation, does not sync |
| 204 |
* |
| 205 |
* @since 2.3 |
| 206 |
* |
| 207 |
* @param int $from Id of the source post |
| 208 |
* @param int $to Id of the target post |
| 209 |
* @param string $lang Language slug |
| 210 |
* @return void |
| 211 |
*/ |
| 212 |
public function copy( $from, $to, $lang ) { |
| 213 |
remove_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 6 ); |
| 214 |
|
| 215 |
// Get taxonomies to sync for this post type |
| 216 |
$taxonomies = array_intersect( get_post_taxonomies( $from ), $this->get_taxonomies_to_copy( false, $from, $to, $lang ) ); |
| 217 |
|
| 218 |
// Update the term cache to reduce the number of queries in the loop |
| 219 |
update_object_term_cache( array( $from ), get_post_type( $from ) ); |
| 220 |
|
| 221 |
// Copy |
| 222 |
foreach ( $taxonomies as $tax ) { |
| 223 |
if ( $terms = get_the_terms( $from, $tax ) ) { |
| 224 |
$terms = array_map( 'intval', wp_list_pluck( $terms, 'term_id' ) ); |
| 225 |
$newterms = $this->maybe_translate_terms( $from, $terms, $tax, $lang ); |
| 226 |
|
| 227 |
if ( ! empty( $newterms ) ) { |
| 228 |
wp_set_object_terms( $to, $newterms, $tax ); |
| 229 |
} |
| 230 |
} |
| 231 |
} |
| 232 |
|
| 233 |
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 6 ); |
| 234 |
} |
| 235 |
|
| 236 |
/** |
| 237 |
* When creating a new term, associate it to posts having translations associated to the translated terms. |
| 238 |
* |
| 239 |
* @since 2.3 |
| 240 |
* |
| 241 |
* @param int $term_id Id of the created term. |
| 242 |
* @param string $taxonomy Taxonomy. |
| 243 |
* @param int[] $translations Ids of the translations of the created term. |
| 244 |
* @return void |
| 245 |
*/ |
| 246 |
public function create_term( $term_id, $taxonomy, $translations ) { |
| 247 |
if ( doing_action( 'create_term' ) && in_array( $taxonomy, $this->get_taxonomies_to_copy( true ) ) ) { |
| 248 |
// Get all posts associated to the translated terms |
| 249 |
$tr_posts = get_posts( |
| 250 |
array( |
| 251 |
'numberposts' => -1, |
| 252 |
'nopaging' => true, |
| 253 |
'post_type' => 'any', |
| 254 |
'post_status' => 'any', |
| 255 |
'fields' => 'ids', |
| 256 |
'tax_query' => array( |
| 257 |
array( |
| 258 |
'taxonomy' => $taxonomy, |
| 259 |
'field' => 'id', |
| 260 |
'terms' => array_merge( array( $term_id ), array_values( $translations ) ), |
| 261 |
'include_children' => false, |
| 262 |
), |
| 263 |
), |
| 264 |
) |
| 265 |
); |
| 266 |
|
| 267 |
$lang = $this->model->term->get_language( $term_id ); // Language of the created term |
| 268 |
$posts = array(); |
| 269 |
|
| 270 |
foreach ( $tr_posts as $post_id ) { |
| 271 |
$post = $this->model->post->get_translation( $post_id, $lang ); |
| 272 |
|
| 273 |
if ( $post ) { |
| 274 |
$posts[] = $post; |
| 275 |
} |
| 276 |
} |
| 277 |
|
| 278 |
$posts = array_unique( $posts ); |
| 279 |
|
| 280 |
foreach ( $posts as $post_id ) { |
| 281 |
if ( current_user_can( 'assign_term', $term_id ) ) { |
| 282 |
wp_set_object_terms( $post_id, $term_id, $taxonomy, true ); |
| 283 |
} |
| 284 |
} |
| 285 |
} |
| 286 |
} |
| 287 |
|
| 288 |
/** |
| 289 |
* Deactivate the synchronization of terms before deleting a term |
| 290 |
* to avoid translated terms to be removed from translated posts |
| 291 |
* |
| 292 |
* @since 2.3.2 |
| 293 |
* |
| 294 |
* @return void |
| 295 |
*/ |
| 296 |
public function pre_delete_term() { |
| 297 |
remove_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 ); |
| 298 |
} |
| 299 |
|
| 300 |
/** |
| 301 |
* Re-activate the synchronization of terms after a term is deleted |
| 302 |
* |
| 303 |
* @since 2.3.2 |
| 304 |
* |
| 305 |
* @return void |
| 306 |
*/ |
| 307 |
public function delete_term() { |
| 308 |
add_action( 'set_object_terms', array( $this, 'set_object_terms' ), 10, 5 ); |
| 309 |
} |
| 310 |
} |
| 311 |
|
