| 1 |
<?php |
| 2 |
namespace Elementor\Modules\GlobalClasses; |
| 3 |
|
| 4 |
use Elementor\Core\Kits\Documents\Kit; |
| 5 |
use Elementor\Modules\DesignSystemSync\Classes\Global_Classes_Sync_Map; |
| 6 |
use Elementor\Core\Kits\Concerns\Has_Kit_Dependency; |
| 7 |
use Elementor\Modules\GlobalClasses\Concerns\Has_Preview_Context; |
| 8 |
use Elementor\Modules\GlobalClasses\Utils\Global_Class_Data_Normalizer; |
| 9 |
|
| 10 |
if ( ! defined( 'ABSPATH' ) ) { |
| 11 |
exit; // Exit if accessed directly. |
| 12 |
} |
| 13 |
|
| 14 |
class Global_Classes_Repository { |
| 15 |
use Has_Kit_Dependency; |
| 16 |
use Has_Preview_Context; |
| 17 |
|
| 18 |
const META_KEY_FRONTEND = '_elementor_global_classes'; |
| 19 |
const META_KEY_PREVIEW = '_elementor_global_classes_preview'; |
| 20 |
|
| 21 |
const CONTEXT_FRONTEND = 'frontend'; |
| 22 |
const CONTEXT_PREVIEW = 'preview'; |
| 23 |
|
| 24 |
const READ_BATCH_SIZE = 100; |
| 25 |
const PERSIST_BATCH_SIZE = 100; |
| 26 |
|
| 27 |
protected array $context_keys = [ |
| 28 |
'event' => [ |
| 29 |
'frontend' => self::CONTEXT_FRONTEND, |
| 30 |
'preview' => self::CONTEXT_PREVIEW, |
| 31 |
], |
| 32 |
]; |
| 33 |
|
| 34 |
private ?Global_Classes $cache = null; |
| 35 |
|
| 36 |
public function __construct( ?Kit $kit = null ) { |
| 37 |
if ( null !== $kit ) { |
| 38 |
$this->set_kit( $kit ); |
| 39 |
} |
| 40 |
} |
| 41 |
|
| 42 |
public static function make( ?Kit $kit = null ): Global_Classes_Repository { |
| 43 |
return new self( $kit ); |
| 44 |
} |
| 45 |
|
| 46 |
protected function on_preview_change(): void { |
| 47 |
$this->cache = null; |
| 48 |
} |
| 49 |
|
| 50 |
/** |
| 51 |
* This method may be too heavy to use |
| 52 |
* Be mindful as this call would cause the server to freeze for as much time as needed until it fetches |
| 53 |
* all global classes |
| 54 |
*/ |
| 55 |
public function all( bool $force = false ): Global_Classes { |
| 56 |
if ( ! $force && null !== $this->cache ) { |
| 57 |
return $this->cache; |
| 58 |
} |
| 59 |
|
| 60 |
$this->cache = $this->all_from_posts(); |
| 61 |
|
| 62 |
return $this->cache; |
| 63 |
} |
| 64 |
|
| 65 |
public function all_labels(): array { |
| 66 |
return $this->labels()->get_ordered_labels(); |
| 67 |
} |
| 68 |
|
| 69 |
public function get_order(): array { |
| 70 |
return Global_Classes_Order::make( $this->get_kit() )->set_preview( $this->is_preview() )->get_order(); |
| 71 |
} |
| 72 |
|
| 73 |
public function update_order_and_labels( array $order, array $new_labels ): void { |
| 74 |
Global_Classes_Order::make( $this->get_kit() ) |
| 75 |
->set_preview( $this->is_preview() ) |
| 76 |
->set_order( $order ); |
| 77 |
|
| 78 |
$labels = $this->labels(); |
| 79 |
$existing_labels = $labels->get_labels(); |
| 80 |
|
| 81 |
foreach ( $new_labels as $id => $label ) { |
| 82 |
$existing_labels[ $id ] = $label; |
| 83 |
} |
| 84 |
|
| 85 |
$labels->set_labels( $existing_labels ); |
| 86 |
|
| 87 |
$this->cache = null; |
| 88 |
} |
| 89 |
|
| 90 |
private function labels(): Global_Classes_Labels { |
| 91 |
return Global_Classes_Labels::make( $this->get_kit() )->set_preview( $this->is_preview() ); |
| 92 |
} |
| 93 |
|
| 94 |
public function get( string $class_id ): ?array { |
| 95 |
$post = Global_Class_Post::find_by_class_id( $class_id, $this->is_preview(), $this->get_kit() ); |
| 96 |
|
| 97 |
return $post ? $post->to_array() : null; |
| 98 |
} |
| 99 |
|
| 100 |
public function get_by_ids( array $class_ids ): array { |
| 101 |
if ( empty( $class_ids ) ) { |
| 102 |
return []; |
| 103 |
} |
| 104 |
|
| 105 |
$post_ids = Global_Classes_Post_IDs::make( $this->get_kit() )->get_post_ids( $class_ids ); |
| 106 |
$items = []; |
| 107 |
|
| 108 |
foreach ( $post_ids as $class_id => $post_id ) { |
| 109 |
$post = Global_Class_Post::from_post_id( $post_id, $this->is_preview() ); |
| 110 |
|
| 111 |
if ( $post ) { |
| 112 |
$items[ $class_id ] = $post->to_array(); |
| 113 |
} |
| 114 |
} |
| 115 |
|
| 116 |
return $items; |
| 117 |
} |
| 118 |
|
| 119 |
public function apply_changes( array $touched_items, array $changes, array $order ): void { |
| 120 |
$labels = $this->labels(); |
| 121 |
$before = $labels->get_labels(); |
| 122 |
$is_preview = $this->is_preview(); |
| 123 |
$to_delete = $changes['deleted'] ?? []; |
| 124 |
$to_create = $changes['added'] ?? []; |
| 125 |
$to_update = $changes['modified'] ?? []; |
| 126 |
$order_changed = isset( $changes['order'] ) && $changes['order']; |
| 127 |
|
| 128 |
$final_label_map = []; |
| 129 |
foreach ( $order as $id ) { |
| 130 |
if ( isset( $touched_items[ $id ] ) ) { |
| 131 |
$final_label_map[ $id ] = $touched_items[ $id ]['label']; |
| 132 |
} elseif ( isset( $before[ $id ] ) ) { |
| 133 |
$final_label_map[ $id ] = $before[ $id ]; |
| 134 |
} |
| 135 |
} |
| 136 |
|
| 137 |
$affected_post_ids = $this->get_posts_affected_by_deletion( $to_delete ); |
| 138 |
|
| 139 |
$this->persist_class_batch_mutations( $to_delete, $to_create, $to_update, $touched_items, $is_preview ); |
| 140 |
|
| 141 |
$classes_order = Global_Classes_Order::make( $this->get_kit() )->set_preview( $this->is_preview() ); |
| 142 |
$classes_order->set_order( $order ); |
| 143 |
$labels->set_labels( $final_label_map ); |
| 144 |
|
| 145 |
if ( ! $is_preview ) { |
| 146 |
Global_Classes_Sync_Map::make( $this->get_kit() )->apply_changes( $touched_items, $to_delete ); |
| 147 |
$this->propagate_order_to_preview( $order, $to_delete ); |
| 148 |
|
| 149 |
$this->bulk_clear_preview_meta( array_values( $to_update ) ); |
| 150 |
$this->clear_preview_labels_for_ids( array_merge( |
| 151 |
array_values( $to_create ), |
| 152 |
array_values( $to_update ), |
| 153 |
array_values( $to_delete ) |
| 154 |
) ); |
| 155 |
} |
| 156 |
|
| 157 |
$this->cache = null; |
| 158 |
$this->flush_runtime_cache(); |
| 159 |
|
| 160 |
do_action( 'elementor/global_classes/update', $this->get_context_key( 'event' ), [ |
| 161 |
'added' => $to_create, |
| 162 |
'deleted' => $to_delete, |
| 163 |
'modified' => $to_update, |
| 164 |
'order' => $order_changed, |
| 165 |
'affected_post_ids' => $affected_post_ids, |
| 166 |
] ); |
| 167 |
|
| 168 |
if ( ! empty( $to_delete ) && ! $is_preview ) { |
| 169 |
do_action( |
| 170 |
'elementor/global_classes/cleanup', |
| 171 |
$to_delete, |
| 172 |
$affected_post_ids |
| 173 |
); |
| 174 |
} |
| 175 |
} |
| 176 |
|
| 177 |
private function propagate_order_to_preview( array $published_order, array $deleted_ids ): void { |
| 178 |
$preview_order = Global_Classes_Order::make( $this->get_kit() )->set_preview( true ); |
| 179 |
$existing_order = $preview_order->get_order(); |
| 180 |
$unpublished_ids = array_flip( array_diff( $existing_order, $published_order, $deleted_ids ) ); |
| 181 |
$merged_order = $published_order; |
| 182 |
|
| 183 |
foreach ( $existing_order as $position => $id ) { |
| 184 |
if ( isset( $unpublished_ids[ $id ] ) ) { |
| 185 |
array_splice( $merged_order, min( $position, count( $merged_order ) ), 0, [ $id ] ); |
| 186 |
} |
| 187 |
} |
| 188 |
|
| 189 |
$preview_order->set_order( $merged_order ); |
| 190 |
} |
| 191 |
|
| 192 |
public function each_item( callable $cb, bool $skip_migration = false, int $batch_size = self::READ_BATCH_SIZE ): void { |
| 193 |
$order = Global_Classes_Order::make( $this->get_kit() )->get_order(); |
| 194 |
|
| 195 |
if ( empty( $order ) ) { |
| 196 |
return; |
| 197 |
} |
| 198 |
|
| 199 |
foreach ( array_chunk( $order, $batch_size ) as $chunk ) { |
| 200 |
foreach ( $this->iterate_class_posts_for_ids( $chunk ) as $class_post ) { |
| 201 |
$cb( $class_post->to_array( $skip_migration ) ); |
| 202 |
} |
| 203 |
} |
| 204 |
} |
| 205 |
|
| 206 |
public function put( array $items, array $order ) { |
| 207 |
$current_ids = Global_Classes_Order::make( $this->get_kit() ) |
| 208 |
->set_preview( $this->is_preview() ) |
| 209 |
->get_order(); |
| 210 |
|
| 211 |
$new_ids = array_keys( $items ); |
| 212 |
$current_order_string = implode( ';', $current_ids ); |
| 213 |
$deleted_class_ids = array_values( array_diff( $current_ids, $new_ids ) ); |
| 214 |
|
| 215 |
$changes = [ |
| 216 |
'added' => array_values( array_diff( $new_ids, $current_ids ) ), |
| 217 |
'deleted' => $deleted_class_ids, |
| 218 |
'modified' => array_values( array_intersect( $new_ids, $current_ids ) ), |
| 219 |
'order' => implode( ';', $order ) !== $current_order_string, |
| 220 |
]; |
| 221 |
|
| 222 |
/** |
| 223 |
* We collect all affected ids before the put_to_posts execution |
| 224 |
* as the update mechanism would handle the Global_Classes_Relations as it iterates over the update batches |
| 225 |
* So once we get to the cleanup phase - we would no longer have the relevant relations |
| 226 |
* |
| 227 |
* On top of that - by collecting all affected posts in advance, means we would iterate over each document's elements only once |
| 228 |
* (as the alternative would be to trigger the cleanup per removed class, but that means we may end up iterating over the same document N times, if all N styles are used in it) |
| 229 |
*/ |
| 230 |
$affected_post_ids = $this->get_posts_affected_by_deletion( $deleted_class_ids ); |
| 231 |
|
| 232 |
$this->put_to_posts( $items, $order, $current_ids ); |
| 233 |
|
| 234 |
$this->cache = null; |
| 235 |
|
| 236 |
$changes['affected_post_ids'] = $affected_post_ids; |
| 237 |
|
| 238 |
do_action( 'elementor/global_classes/update', $this->get_context_key( 'event' ), $changes ); |
| 239 |
|
| 240 |
if ( ! empty( $deleted_class_ids ) && ! $this->is_preview() ) { |
| 241 |
do_action( |
| 242 |
'elementor/global_classes/cleanup', |
| 243 |
$deleted_class_ids, |
| 244 |
$affected_post_ids |
| 245 |
); |
| 246 |
} |
| 247 |
} |
| 248 |
|
| 249 |
private function get_posts_affected_by_deletion( array $deleted_class_ids ): array { |
| 250 |
if ( empty( $deleted_class_ids ) ) { |
| 251 |
return []; |
| 252 |
} |
| 253 |
|
| 254 |
$relations = new Global_Classes_Relations(); |
| 255 |
$post_ids = []; |
| 256 |
|
| 257 |
foreach ( $deleted_class_ids as $class_id ) { |
| 258 |
$post_ids[] = $relations->get_posts_by_style( $class_id ); |
| 259 |
} |
| 260 |
|
| 261 |
return array_values( array_unique( array_merge( ...$post_ids ) ) ); |
| 262 |
} |
| 263 |
|
| 264 |
private function all_from_posts(): Global_Classes { |
| 265 |
$order = Global_Classes_Order::make( $this->get_kit() ) |
| 266 |
->set_preview( $this->is_preview() ) |
| 267 |
->get_order(); |
| 268 |
|
| 269 |
if ( empty( $order ) ) { |
| 270 |
return Global_Classes::make( [], [] ); |
| 271 |
} |
| 272 |
|
| 273 |
$items = []; |
| 274 |
|
| 275 |
foreach ( $this->iterate_class_posts_for_ids( $order ) as $class_post ) { |
| 276 |
$class_data = $class_post->to_array(); |
| 277 |
$items[ $class_data['id'] ] = $class_data; |
| 278 |
} |
| 279 |
|
| 280 |
$order = Global_Classes_Parser::sanitize_order( $items, $order ); |
| 281 |
|
| 282 |
return Global_Classes::make( $items, $order ); |
| 283 |
} |
| 284 |
|
| 285 |
private function put_to_posts( array $items, array $order, array $current_ids ): void { |
| 286 |
$is_preview = $this->is_preview(); |
| 287 |
$new_ids = array_keys( $items ); |
| 288 |
|
| 289 |
$to_delete = array_diff( $current_ids, $new_ids ); |
| 290 |
$to_create = array_diff( $new_ids, $current_ids ); |
| 291 |
$to_update = array_intersect( $new_ids, $current_ids ); |
| 292 |
|
| 293 |
$this->persist_class_batch_mutations( $to_delete, $to_create, $to_update, $items, $is_preview ); |
| 294 |
|
| 295 |
$classes_order = Global_Classes_Order::make( $this->get_kit() )->set_preview( $this->is_preview() ); |
| 296 |
$classes_order->set_order( $order ); |
| 297 |
|
| 298 |
$label_map = []; |
| 299 |
foreach ( $order as $id ) { |
| 300 |
if ( isset( $items[ $id ]['label'] ) ) { |
| 301 |
$label_map[ $id ] = $items[ $id ]['label']; |
| 302 |
} |
| 303 |
} |
| 304 |
$this->labels()->set_labels( $label_map ); |
| 305 |
|
| 306 |
if ( ! $is_preview ) { |
| 307 |
$touched_ids = array_merge( array_values( $to_create ), array_values( $to_update ) ); |
| 308 |
$touched_items = array_intersect_key( |
| 309 |
$items, |
| 310 |
array_flip( $touched_ids ) |
| 311 |
); |
| 312 |
Global_Classes_Sync_Map::make( $this->get_kit() )->apply_changes( $touched_items, array_values( $to_delete ) ); |
| 313 |
|
| 314 |
$this->bulk_clear_preview_meta( array_values( $to_update ) ); |
| 315 |
$this->clear_preview_labels_for_ids( array_merge( |
| 316 |
array_values( $to_create ), |
| 317 |
array_values( $to_update ), |
| 318 |
array_values( $to_delete ) |
| 319 |
) ); |
| 320 |
} |
| 321 |
} |
| 322 |
|
| 323 |
private function iterate_class_posts_for_ids( array $class_ids ): \Generator { |
| 324 |
foreach ( array_chunk( $class_ids, self::READ_BATCH_SIZE ) as $chunk ) { |
| 325 |
$posts = get_posts( [ |
| 326 |
'post_type' => Global_Class_Post_Type::CPT, |
| 327 |
'post_status' => 'publish', |
| 328 |
'posts_per_page' => -1, |
| 329 |
'meta_query' => [ |
| 330 |
[ |
| 331 |
'key' => Global_Class_Post::META_KEY_ID, |
| 332 |
'value' => $chunk, |
| 333 |
'compare' => 'IN', |
| 334 |
], |
| 335 |
], |
| 336 |
] ); |
| 337 |
|
| 338 |
foreach ( $posts as $post ) { |
| 339 |
yield Global_Class_Post::from_post( $post, $this->is_preview() ); |
| 340 |
clean_post_cache( $post->ID ); |
| 341 |
} |
| 342 |
unset( $posts ); |
| 343 |
$this->flush_runtime_cache(); |
| 344 |
} |
| 345 |
} |
| 346 |
|
| 347 |
private function persist_class_batch_mutations( |
| 348 |
array $to_delete, |
| 349 |
array $to_create, |
| 350 |
array $to_update, |
| 351 |
array $items_by_id, |
| 352 |
bool $is_preview |
| 353 |
): void { |
| 354 |
$relations = new Global_Classes_Relations(); |
| 355 |
$post_ids_map = Global_Classes_Post_IDs::make( $this->get_kit() ); |
| 356 |
|
| 357 |
$ids_to_resolve = array_values( array_merge( |
| 358 |
array_values( $to_delete ), |
| 359 |
array_values( $to_update ), |
| 360 |
array_values( $to_create ) |
| 361 |
) ); |
| 362 |
$post_ids = $post_ids_map->get_post_ids( $ids_to_resolve ); |
| 363 |
|
| 364 |
$this->each_class_id_batch( |
| 365 |
array_values( $to_delete ), |
| 366 |
function ( string $class_id ) use ( $is_preview, $relations, $post_ids ) { |
| 367 |
$post = isset( $post_ids[ $class_id ] ) |
| 368 |
? Global_Class_Post::from_post_id( $post_ids[ $class_id ], false ) |
| 369 |
: null; |
| 370 |
|
| 371 |
if ( ! $post ) { |
| 372 |
return; |
| 373 |
} |
| 374 |
|
| 375 |
if ( $is_preview ) { |
| 376 |
$post->set_preview( true ); |
| 377 |
$post->update_data( [] ); |
| 378 |
clean_post_cache( $post->get_post_id() ); |
| 379 |
} else { |
| 380 |
$relations->clear_class_relations( $class_id ); |
| 381 |
$post->delete(); |
| 382 |
} |
| 383 |
} |
| 384 |
); |
| 385 |
|
| 386 |
$this->each_class_id_batch( $to_create, function ( string $class_id ) use ( $items_by_id, $is_preview, $post_ids, $post_ids_map ) { |
| 387 |
if ( ! isset( $items_by_id[ $class_id ] ) ) { |
| 388 |
return; |
| 389 |
} |
| 390 |
|
| 391 |
$item = $items_by_id[ $class_id ]; |
| 392 |
$data = Global_Class_Data_Normalizer::normalize_style_fields( $item ); |
| 393 |
$kit = $this->get_kit(); |
| 394 |
$existing_post_id = $post_ids[ $class_id ] ?? null; |
| 395 |
$existing_post = $existing_post_id ? Global_Class_Post::from_post_id( $existing_post_id, $is_preview ) : null; |
| 396 |
|
| 397 |
if ( $existing_post ) { |
| 398 |
$existing_post->update_data( $data ); |
| 399 |
|
| 400 |
if ( ! $is_preview ) { |
| 401 |
$existing_post->update_label( $item['label'] ); |
| 402 |
} |
| 403 |
|
| 404 |
clean_post_cache( $existing_post->get_post_id() ); |
| 405 |
|
| 406 |
return; |
| 407 |
} |
| 408 |
|
| 409 |
$created = Global_Class_Post::create( $class_id, $item['label'], $data, $kit ); |
| 410 |
|
| 411 |
if ( $created ) { |
| 412 |
$post_ids_map->set( $class_id, $created->get_post_id() ); |
| 413 |
clean_post_cache( $created->get_post_id() ); |
| 414 |
} |
| 415 |
} ); |
| 416 |
|
| 417 |
$this->each_class_id_batch( |
| 418 |
$to_update, |
| 419 |
function ( string $class_id ) use ( $items_by_id, $is_preview, $post_ids ) { |
| 420 |
if ( ! isset( $items_by_id[ $class_id ] ) || ! isset( $post_ids[ $class_id ] ) ) { |
| 421 |
return; |
| 422 |
} |
| 423 |
|
| 424 |
$item = $items_by_id[ $class_id ]; |
| 425 |
$post = Global_Class_Post::from_post_id( $post_ids[ $class_id ], $is_preview ); |
| 426 |
|
| 427 |
if ( ! $post ) { |
| 428 |
return; |
| 429 |
} |
| 430 |
|
| 431 |
$data = Global_Class_Data_Normalizer::normalize_style_fields( $item ); |
| 432 |
$post->update_data( $data ); |
| 433 |
|
| 434 |
if ( ! $is_preview ) { |
| 435 |
$post->update_label( $item['label'] ); |
| 436 |
} |
| 437 |
|
| 438 |
clean_post_cache( $post->get_post_id() ); |
| 439 |
} |
| 440 |
); |
| 441 |
} |
| 442 |
|
| 443 |
public function delete_all(): void { |
| 444 |
$order = $this->get_order(); |
| 445 |
|
| 446 |
$this->each_class_id_batch( $order, function ( string $class_id ) { |
| 447 |
$post = Global_Class_Post::find_by_class_id( $class_id, false, $this->get_kit() ); |
| 448 |
|
| 449 |
if ( $post ) { |
| 450 |
$post->delete(); |
| 451 |
} |
| 452 |
} ); |
| 453 |
|
| 454 |
Global_Classes_Order::make( $this->get_kit() )->set_order( [] ); |
| 455 |
$this->labels()->set_labels( [] ); |
| 456 |
} |
| 457 |
|
| 458 |
private function clear_preview_labels_for_ids( array $class_ids ): void { |
| 459 |
if ( empty( $class_ids ) ) { |
| 460 |
return; |
| 461 |
} |
| 462 |
|
| 463 |
$preview_labels = Global_Classes_Labels::make( $this->get_kit() )->set_preview( true ); |
| 464 |
$labels_map = $preview_labels->get_labels(); |
| 465 |
|
| 466 |
if ( empty( $labels_map ) ) { |
| 467 |
return; |
| 468 |
} |
| 469 |
|
| 470 |
$ids_to_remove = array_intersect( array_unique( $class_ids ), array_keys( $labels_map ) ); |
| 471 |
|
| 472 |
if ( empty( $ids_to_remove ) ) { |
| 473 |
return; |
| 474 |
} |
| 475 |
|
| 476 |
foreach ( $ids_to_remove as $id ) { |
| 477 |
unset( $labels_map[ $id ] ); |
| 478 |
} |
| 479 |
|
| 480 |
$preview_labels->set_labels( $labels_map ); |
| 481 |
} |
| 482 |
|
| 483 |
private function bulk_clear_preview_meta( array $class_ids ): void { |
| 484 |
if ( empty( $class_ids ) ) { |
| 485 |
return; |
| 486 |
} |
| 487 |
|
| 488 |
$post_ids_map = Global_Classes_Post_IDs::make( $this->get_kit() ); |
| 489 |
|
| 490 |
foreach ( array_chunk( $class_ids, self::PERSIST_BATCH_SIZE ) as $chunk ) { |
| 491 |
$post_ids = $post_ids_map->get_post_ids( $chunk ); |
| 492 |
|
| 493 |
foreach ( $post_ids as $post_id ) { |
| 494 |
delete_post_meta( $post_id, Global_Class_Post::META_KEY_DATA_PREVIEW ); |
| 495 |
clean_post_cache( $post_id ); |
| 496 |
} |
| 497 |
|
| 498 |
$this->flush_runtime_cache(); |
| 499 |
} |
| 500 |
} |
| 501 |
|
| 502 |
private function each_class_id_batch( $class_ids, callable $callback, int $batch_size = self::PERSIST_BATCH_SIZE ): void { |
| 503 |
$class_ids = is_array( $class_ids ) ? $class_ids : iterator_to_array( $class_ids, false ); |
| 504 |
foreach ( array_chunk( array_values( $class_ids ), $batch_size ) as $batch ) { |
| 505 |
foreach ( $batch as $class_id ) { |
| 506 |
$callback( $class_id ); |
| 507 |
} |
| 508 |
$this->flush_runtime_cache(); |
| 509 |
} |
| 510 |
} |
| 511 |
|
| 512 |
private function flush_runtime_cache(): void { |
| 513 |
if ( function_exists( 'wp_cache_flush_runtime' ) ) { |
| 514 |
wp_cache_flush_runtime(); |
| 515 |
} |
| 516 |
} |
| 517 |
} |
| 518 |
|
