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| 1 | <?php |
| 2 | /** |
| 3 | * Representation for a category. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | * @author Simetrical |
| 22 | */ |
| 23 | |
| 24 | namespace MediaWiki\Category; |
| 25 | |
| 26 | use MediaWiki\Deferred\DeferredUpdates; |
| 27 | use MediaWiki\MediaWikiServices; |
| 28 | use MediaWiki\Page\PageIdentity; |
| 29 | use MediaWiki\Title\Title; |
| 30 | use MediaWiki\Title\TitleArrayFromResult; |
| 31 | use MediaWiki\Title\TitleFactory; |
| 32 | use RuntimeException; |
| 33 | use stdClass; |
| 34 | use Wikimedia\Rdbms\IConnectionProvider; |
| 35 | use Wikimedia\Rdbms\ReadOnlyMode; |
| 36 | |
| 37 | /** |
| 38 | * Category objects are immutable, strictly speaking. If you call methods that change the database, |
| 39 | * like to refresh link counts, the objects will be appropriately reinitialized. |
| 40 | * Member variables are lazy-initialized. |
| 41 | */ |
| 42 | class Category { |
| 43 | /** @var string|null Name of the category, normalized to DB-key form */ |
| 44 | private $mName = null; |
| 45 | /** @var int|null|false */ |
| 46 | private $mID = null; |
| 47 | /** |
| 48 | * Category page title |
| 49 | * @var PageIdentity |
| 50 | */ |
| 51 | private $mPage = null; |
| 52 | |
| 53 | /** Counts of membership (cat_pages, cat_subcats, cat_files) */ |
| 54 | /** @var int */ |
| 55 | private $mPages = 0; |
| 56 | |
| 57 | /** @var int */ |
| 58 | private $mSubcats = 0; |
| 59 | |
| 60 | /** @var int */ |
| 61 | private $mFiles = 0; |
| 62 | |
| 63 | protected const LOAD_ONLY = 0; |
| 64 | protected const LAZY_INIT_ROW = 1; |
| 65 | |
| 66 | public const ROW_COUNT_SMALL = 100; |
| 67 | |
| 68 | public const COUNT_ALL_MEMBERS = 0; |
| 69 | public const COUNT_CONTENT_PAGES = 1; |
| 70 | |
| 71 | /** @var IConnectionProvider */ |
| 72 | private $dbProvider; |
| 73 | |
| 74 | /** @var ReadOnlyMode */ |
| 75 | private $readOnlyMode; |
| 76 | |
| 77 | /** @var TitleFactory */ |
| 78 | private $titleFactory; |
| 79 | |
| 80 | private function __construct() { |
| 81 | $services = MediaWikiServices::getInstance(); |
| 82 | $this->dbProvider = $services->getConnectionProvider(); |
| 83 | $this->readOnlyMode = $services->getReadOnlyMode(); |
| 84 | $this->titleFactory = $services->getTitleFactory(); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Set up all member variables using a database query. |
| 89 | * @param int $mode One of (Category::LOAD_ONLY, Category::LAZY_INIT_ROW) |
| 90 | * @return bool True on success, false on failure. |
| 91 | */ |
| 92 | protected function initialize( $mode = self::LOAD_ONLY ) { |
| 93 | if ( $this->mName === null && $this->mID === null ) { |
| 94 | throw new RuntimeException( __METHOD__ . ' has both names and IDs null' ); |
| 95 | } elseif ( $this->mID === null ) { |
| 96 | $where = [ 'cat_title' => $this->mName ]; |
| 97 | } elseif ( $this->mName === null ) { |
| 98 | $where = [ 'cat_id' => $this->mID ]; |
| 99 | } else { |
| 100 | # Already initialized |
| 101 | return true; |
| 102 | } |
| 103 | |
| 104 | $row = $this->dbProvider->getReplicaDatabase()->newSelectQueryBuilder() |
| 105 | ->select( [ 'cat_id', 'cat_title', 'cat_pages', 'cat_subcats', 'cat_files' ] ) |
| 106 | ->from( 'category' ) |
| 107 | ->where( $where ) |
| 108 | ->caller( __METHOD__ )->fetchRow(); |
| 109 | |
| 110 | if ( !$row ) { |
| 111 | # Okay, there were no contents. Nothing to initialize. |
| 112 | if ( $this->mPage ) { |
| 113 | # If there is a page object but no record in the category table, |
| 114 | # treat this as an empty category. |
| 115 | $this->mID = false; |
| 116 | $this->mName = $this->mPage->getDBkey(); |
| 117 | $this->mPages = 0; |
| 118 | $this->mSubcats = 0; |
| 119 | $this->mFiles = 0; |
| 120 | |
| 121 | # If the page exists, call refreshCounts to add a row for it. |
| 122 | if ( $mode === self::LAZY_INIT_ROW && $this->mPage->exists() ) { |
| 123 | DeferredUpdates::addCallableUpdate( [ $this, 'refreshCounts' ] ); |
| 124 | } |
| 125 | |
| 126 | return true; |
| 127 | } else { |
| 128 | return false; # Fail |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | $this->mID = $row->cat_id; |
| 133 | $this->mName = $row->cat_title; |
| 134 | $this->mPages = (int)$row->cat_pages; |
| 135 | $this->mSubcats = (int)$row->cat_subcats; |
| 136 | $this->mFiles = (int)$row->cat_files; |
| 137 | |
| 138 | # (T15683, T373773) If any of the per-link-type counts are negative |
| 139 | # (which may also make the total negative), then 1) the counts are |
| 140 | # obviously wrong and should not be kept, and 2) we *probably* don't |
| 141 | # have to scan many rows to obtain the correct figure, so let's risk |
| 142 | # a one-time recount. |
| 143 | if ( $this->mSubcats < 0 || $this->mFiles < 0 |
| 144 | || $this->mPages - $this->mSubcats - $this->mFiles < 0 |
| 145 | ) { |
| 146 | # Adjust any per-link-type counts that are negative, so callers |
| 147 | # of the getter methods will not see negative numbers. Adjust the |
| 148 | # total last; increasing a negative number other than the total |
| 149 | # to zero could cause the number of regular pages to go negative. |
| 150 | $this->mSubcats = max( $this->mSubcats, 0 ); |
| 151 | $this->mFiles = max( $this->mFiles, 0 ); |
| 152 | # For the number of regular pages to not be negative, the total |
| 153 | # number of members must be at least the sum of the other counts. |
| 154 | $this->mPages = max( $this->mPages, $this->mSubcats + $this->mFiles ); |
| 155 | |
| 156 | if ( $mode === self::LAZY_INIT_ROW ) { |
| 157 | DeferredUpdates::addCallableUpdate( [ $this, 'refreshCounts' ] ); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Factory function. |
| 166 | * |
| 167 | * @param string $name A category name (no "Category:" prefix). It need |
| 168 | * not be normalized, with spaces replaced by underscores. |
| 169 | * @return Category|bool Category, or false on a totally invalid name |
| 170 | */ |
| 171 | public static function newFromName( $name ) { |
| 172 | $cat = new self(); |
| 173 | $title = Title::makeTitleSafe( NS_CATEGORY, $name ); |
| 174 | |
| 175 | if ( !is_object( $title ) ) { |
| 176 | return false; |
| 177 | } |
| 178 | |
| 179 | $cat->mPage = $title; |
| 180 | $cat->mName = $title->getDBkey(); |
| 181 | |
| 182 | return $cat; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Factory function. |
| 187 | * |
| 188 | * @param PageIdentity $page Category page. Warning, no validation is performed! |
| 189 | * @return Category |
| 190 | */ |
| 191 | public static function newFromTitle( PageIdentity $page ): self { |
| 192 | $cat = new self(); |
| 193 | |
| 194 | $cat->mPage = $page; |
| 195 | $cat->mName = $page->getDBkey(); |
| 196 | |
| 197 | return $cat; |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Factory function. |
| 202 | * |
| 203 | * @param int $id A category id. Warning, no validation is performed! |
| 204 | * @return Category |
| 205 | */ |
| 206 | public static function newFromID( $id ) { |
| 207 | $cat = new self(); |
| 208 | $cat->mID = intval( $id ); |
| 209 | return $cat; |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Factory function, for constructing a Category object from a result set |
| 214 | * |
| 215 | * @param stdClass $row Result set row, must contain the cat_xxx fields. If the fields are |
| 216 | * null, the resulting Category object will represent an empty category if a page object was |
| 217 | * given. If the fields are null and no PageIdentity was given, this method fails and returns |
| 218 | * false. |
| 219 | * @param PageIdentity|null $page This must be provided if there is no cat_title field in $row. |
| 220 | * @return Category|false |
| 221 | */ |
| 222 | public static function newFromRow( stdClass $row, ?PageIdentity $page = null ) { |
| 223 | $cat = new self(); |
| 224 | $cat->mPage = $page; |
| 225 | |
| 226 | # NOTE: the row often results from a LEFT JOIN on categorylinks. This may result in |
| 227 | # all the cat_xxx fields being null, if the category page exists, but nothing |
| 228 | # was ever added to the category. This case should be treated link an empty |
| 229 | # category, if possible. |
| 230 | |
| 231 | if ( $row->cat_title === null ) { |
| 232 | if ( $page === null ) { |
| 233 | # the name is probably somewhere in the row, for example as page_title, |
| 234 | # but we can't know that here... |
| 235 | return false; |
| 236 | } else { |
| 237 | # if we have a PageIdentity object, fetch the category name from there |
| 238 | $cat->mName = $page->getDBkey(); |
| 239 | } |
| 240 | |
| 241 | $cat->mID = false; |
| 242 | $cat->mSubcats = 0; |
| 243 | $cat->mPages = 0; |
| 244 | $cat->mFiles = 0; |
| 245 | } else { |
| 246 | $cat->mName = $row->cat_title; |
| 247 | $cat->mID = $row->cat_id; |
| 248 | $cat->mSubcats = (int)$row->cat_subcats; |
| 249 | $cat->mPages = (int)$row->cat_pages; |
| 250 | $cat->mFiles = (int)$row->cat_files; |
| 251 | } |
| 252 | |
| 253 | return $cat; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * @return string|false DB key name, or false on failure |
| 258 | */ |
| 259 | public function getName() { |
| 260 | return $this->getX( 'mName' ); |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * @return string|false Category ID, or false on failure |
| 265 | */ |
| 266 | public function getID() { |
| 267 | return $this->getX( 'mID' ); |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * @return int Total number of members count (sum of subcats, files and pages) |
| 272 | */ |
| 273 | public function getMemberCount(): int { |
| 274 | $this->initialize( self::LAZY_INIT_ROW ); |
| 275 | |
| 276 | return $this->mPages; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * @param int $type One of self::COUNT_ALL_MEMBERS and self::COUNT_CONTENT_PAGES |
| 281 | * @return int Total number of member count or content page count |
| 282 | */ |
| 283 | public function getPageCount( $type = self::COUNT_ALL_MEMBERS ): int { |
| 284 | $allCount = $this->getMemberCount(); |
| 285 | |
| 286 | if ( $type === self::COUNT_CONTENT_PAGES ) { |
| 287 | return $allCount - ( $this->getSubcatCount() + $this->getFileCount() ); |
| 288 | } |
| 289 | |
| 290 | return $allCount; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * @return int Number of subcategories |
| 295 | */ |
| 296 | public function getSubcatCount(): int { |
| 297 | return $this->getX( 'mSubcats' ); |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * @return int Number of member files |
| 302 | */ |
| 303 | public function getFileCount(): int { |
| 304 | return $this->getX( 'mFiles' ); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * @since 1.37 |
| 309 | * @return ?PageIdentity the page associated with this category, or null on failure. NOTE: This |
| 310 | * returns null on failure, unlike getTitle() which returns false. |
| 311 | */ |
| 312 | public function getPage(): ?PageIdentity { |
| 313 | if ( $this->mPage ) { |
| 314 | return $this->mPage; |
| 315 | } |
| 316 | |
| 317 | if ( !$this->initialize( self::LAZY_INIT_ROW ) ) { |
| 318 | return null; |
| 319 | } |
| 320 | |
| 321 | $this->mPage = Title::makeTitleSafe( NS_CATEGORY, $this->mName ); |
| 322 | return $this->mPage; |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * @deprecated since 1.37, use getPage() instead. |
| 327 | * @return Title|bool Title for this category, or false on failure. |
| 328 | */ |
| 329 | public function getTitle() { |
| 330 | return Title::castFromPageIdentity( $this->getPage() ) ?? false; |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Fetch a TitleArray of up to $limit category members, beginning after the |
| 335 | * category sort key $offset. |
| 336 | * @param int|false $limit |
| 337 | * @param string $offset |
| 338 | * @return TitleArrayFromResult Title objects for category members. |
| 339 | */ |
| 340 | public function getMembers( $limit = false, $offset = '' ) { |
| 341 | $dbr = $this->dbProvider->getReplicaDatabase(); |
| 342 | $queryBuilder = $dbr->newSelectQueryBuilder(); |
| 343 | $queryBuilder->select( [ 'page_id', 'page_namespace', 'page_title', 'page_len', |
| 344 | 'page_is_redirect', 'page_latest' ] ) |
| 345 | ->from( 'categorylinks' ) |
| 346 | ->join( 'page', null, [ 'cl_from = page_id' ] ) |
| 347 | ->where( [ 'cl_to' => $this->getName() ] ) |
| 348 | ->orderBy( 'cl_sortkey' ); |
| 349 | |
| 350 | if ( $limit ) { |
| 351 | $queryBuilder->limit( $limit ); |
| 352 | } |
| 353 | |
| 354 | if ( $offset !== '' ) { |
| 355 | $queryBuilder->andWhere( $dbr->expr( 'cl_sortkey', '>', $offset ) ); |
| 356 | } |
| 357 | |
| 358 | return $this->titleFactory->newTitleArrayFromResult( |
| 359 | $queryBuilder->caller( __METHOD__ )->fetchResultSet() |
| 360 | ); |
| 361 | } |
| 362 | |
| 363 | /** |
| 364 | * Generic accessor |
| 365 | * @param string $key |
| 366 | * @return mixed |
| 367 | */ |
| 368 | private function getX( $key ) { |
| 369 | $this->initialize( self::LAZY_INIT_ROW ); |
| 370 | |
| 371 | return $this->{$key} ?? false; |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * Refresh the counts for this category. |
| 376 | * |
| 377 | * @return bool True on success, false on failure |
| 378 | */ |
| 379 | public function refreshCounts() { |
| 380 | if ( $this->readOnlyMode->isReadOnly() ) { |
| 381 | return false; |
| 382 | } |
| 383 | |
| 384 | # If we have just a category name, find out whether there is an |
| 385 | # existing row. Or if we have just an ID, get the name, because |
| 386 | # that's what categorylinks uses. |
| 387 | if ( !$this->initialize( self::LOAD_ONLY ) ) { |
| 388 | return false; |
| 389 | } |
| 390 | |
| 391 | $dbw = $this->dbProvider->getPrimaryDatabase(); |
| 392 | # Avoid excess contention on the same category (T162121) |
| 393 | $name = __METHOD__ . ':' . md5( $this->mName ); |
| 394 | $scopedLock = $dbw->getScopedLockAndFlush( $name, __METHOD__, 0 ); |
| 395 | if ( !$scopedLock ) { |
| 396 | return false; |
| 397 | } |
| 398 | |
| 399 | $dbw->startAtomic( __METHOD__ ); |
| 400 | |
| 401 | // Lock the `category` row before potentially locking `categorylinks` rows to try |
| 402 | // to avoid deadlocks with LinksDeletionUpdate (T195397) |
| 403 | $dbw->newSelectQueryBuilder() |
| 404 | ->from( 'category' ) |
| 405 | ->where( [ 'cat_title' => $this->mName ] ) |
| 406 | ->caller( __METHOD__ ) |
| 407 | ->forUpdate() |
| 408 | ->acquireRowLocks(); |
| 409 | |
| 410 | $rowCount = $dbw->newSelectQueryBuilder() |
| 411 | ->select( '*' ) |
| 412 | ->from( 'categorylinks' ) |
| 413 | ->join( 'page', null, 'page_id = cl_from' ) |
| 414 | ->where( [ 'cl_to' => $this->mName ] ) |
| 415 | ->limit( 110 ) |
| 416 | ->caller( __METHOD__ )->fetchRowCount(); |
| 417 | // Only lock if there are below 100 rows (T352628) |
| 418 | if ( $rowCount < 100 ) { |
| 419 | // Lock all the `categorylinks` records and gaps for this category; |
| 420 | // this is a separate query due to postgres limitations |
| 421 | $dbw->newSelectQueryBuilder() |
| 422 | ->select( '*' ) |
| 423 | ->from( 'categorylinks' ) |
| 424 | ->join( 'page', null, 'page_id = cl_from' ) |
| 425 | ->where( [ 'cl_to' => $this->mName ] ) |
| 426 | ->lockInShareMode() |
| 427 | ->caller( __METHOD__ ) |
| 428 | ->acquireRowLocks(); |
| 429 | } |
| 430 | |
| 431 | // Get the aggregate `categorylinks` row counts for this category |
| 432 | $catCond = $dbw->conditional( [ 'page_namespace' => NS_CATEGORY ], '1', 'NULL' ); |
| 433 | $fileCond = $dbw->conditional( [ 'page_namespace' => NS_FILE ], '1', 'NULL' ); |
| 434 | $result = $dbw->newSelectQueryBuilder() |
| 435 | ->select( [ |
| 436 | 'pages' => 'COUNT(*)', |
| 437 | 'subcats' => "COUNT($catCond)", |
| 438 | 'files' => "COUNT($fileCond)" |
| 439 | ] ) |
| 440 | ->from( 'categorylinks' ) |
| 441 | ->join( 'page', null, 'page_id = cl_from' ) |
| 442 | ->where( [ 'cl_to' => $this->mName ] ) |
| 443 | ->caller( __METHOD__ )->fetchRow(); |
| 444 | |
| 445 | $shouldExist = $result->pages > 0 || $this->getPage()->exists(); |
| 446 | |
| 447 | if ( $this->mID ) { |
| 448 | if ( $shouldExist ) { |
| 449 | # The category row already exists, so do a plain UPDATE instead |
| 450 | # of INSERT...ON DUPLICATE KEY UPDATE to avoid creating a gap |
| 451 | # in the cat_id sequence. The row may or may not be "affected". |
| 452 | $dbw->newUpdateQueryBuilder() |
| 453 | ->update( 'category' ) |
| 454 | ->set( [ |
| 455 | 'cat_pages' => $result->pages, |
| 456 | 'cat_subcats' => $result->subcats, |
| 457 | 'cat_files' => $result->files |
| 458 | ] ) |
| 459 | ->where( [ 'cat_title' => $this->mName ] ) |
| 460 | ->caller( __METHOD__ )->execute(); |
| 461 | } else { |
| 462 | # The category is empty and has no description page, delete it |
| 463 | $dbw->newDeleteQueryBuilder() |
| 464 | ->deleteFrom( 'category' ) |
| 465 | ->where( [ 'cat_title' => $this->mName ] ) |
| 466 | ->caller( __METHOD__ )->execute(); |
| 467 | $this->mID = false; |
| 468 | } |
| 469 | } elseif ( $shouldExist ) { |
| 470 | # The category row doesn't exist but should, so create it. Use |
| 471 | # upsert in case of races. |
| 472 | $dbw->newInsertQueryBuilder() |
| 473 | ->insertInto( 'category' ) |
| 474 | ->row( [ |
| 475 | 'cat_title' => $this->mName, |
| 476 | 'cat_pages' => $result->pages, |
| 477 | 'cat_subcats' => $result->subcats, |
| 478 | 'cat_files' => $result->files |
| 479 | ] ) |
| 480 | ->onDuplicateKeyUpdate() |
| 481 | ->uniqueIndexFields( [ 'cat_title' ] ) |
| 482 | ->set( [ |
| 483 | 'cat_pages' => $result->pages, |
| 484 | 'cat_subcats' => $result->subcats, |
| 485 | 'cat_files' => $result->files |
| 486 | ] ) |
| 487 | ->caller( __METHOD__ )->execute(); |
| 488 | // @todo: Should we update $this->mID here? Or not since Category |
| 489 | // objects tend to be short lived enough to not matter? |
| 490 | } |
| 491 | |
| 492 | $dbw->endAtomic( __METHOD__ ); |
| 493 | |
| 494 | # Now we should update our local counts. |
| 495 | $this->mPages = (int)$result->pages; |
| 496 | $this->mSubcats = (int)$result->subcats; |
| 497 | $this->mFiles = (int)$result->files; |
| 498 | |
| 499 | return true; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Call refreshCounts() if there are no entries in the categorylinks table |
| 504 | * or if the category table has a row that states that there are no entries |
| 505 | * |
| 506 | * Due to lock errors or other failures, the precomputed counts can get out of sync, |
| 507 | * making it hard to know when to delete the category row without checking the |
| 508 | * categorylinks table. |
| 509 | * |
| 510 | * @return bool Whether links were refreshed |
| 511 | * @since 1.32 |
| 512 | */ |
| 513 | public function refreshCountsIfEmpty() { |
| 514 | return $this->refreshCountsIfSmall( 0 ); |
| 515 | } |
| 516 | |
| 517 | /** |
| 518 | * Call refreshCounts() if there are few entries in the categorylinks table |
| 519 | * |
| 520 | * Due to lock errors or other failures, the precomputed counts can get out of sync, |
| 521 | * making it hard to know when to delete the category row without checking the |
| 522 | * categorylinks table. |
| 523 | * |
| 524 | * This method will do a non-locking select first to reduce contention. |
| 525 | * |
| 526 | * @param int $maxSize Only refresh if there are this or less many backlinks |
| 527 | * @return bool Whether links were refreshed |
| 528 | * @since 1.34 |
| 529 | */ |
| 530 | public function refreshCountsIfSmall( $maxSize = self::ROW_COUNT_SMALL ) { |
| 531 | $dbw = $this->dbProvider->getPrimaryDatabase(); |
| 532 | $dbw->startAtomic( __METHOD__ ); |
| 533 | |
| 534 | $typeOccurances = $dbw->newSelectQueryBuilder() |
| 535 | ->select( 'cl_type' ) |
| 536 | ->from( 'categorylinks' ) |
| 537 | ->where( [ 'cl_to' => $this->getName() ] ) |
| 538 | ->limit( $maxSize + 1 ) |
| 539 | ->caller( __METHOD__ )->fetchFieldValues(); |
| 540 | |
| 541 | if ( !$typeOccurances ) { |
| 542 | $doRefresh = true; // delete any category table entry |
| 543 | } elseif ( count( $typeOccurances ) <= $maxSize ) { |
| 544 | $countByType = array_count_values( $typeOccurances ); |
| 545 | $doRefresh = !$dbw->newSelectQueryBuilder() |
| 546 | ->select( '1' ) |
| 547 | ->from( 'category' ) |
| 548 | ->where( [ |
| 549 | 'cat_title' => $this->getName(), |
| 550 | 'cat_pages' => $countByType['page'] ?? 0, |
| 551 | 'cat_subcats' => $countByType['subcat'] ?? 0, |
| 552 | 'cat_files' => $countByType['file'] ?? 0 |
| 553 | ] ) |
| 554 | ->caller( __METHOD__ )->fetchField(); |
| 555 | } else { |
| 556 | $doRefresh = false; // category is too big |
| 557 | } |
| 558 | |
| 559 | $dbw->endAtomic( __METHOD__ ); |
| 560 | |
| 561 | if ( $doRefresh ) { |
| 562 | $this->refreshCounts(); // update the row |
| 563 | |
| 564 | return true; |
| 565 | } |
| 566 | |
| 567 | return false; |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | /** @deprecated class alias since 1.40 */ |
| 572 | class_alias( Category::class, 'Category' ); |