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| 1 | <?php |
| 2 | /** |
| 3 | * User edit count incrementing. |
| 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 | */ |
| 22 | |
| 23 | namespace MediaWiki\Deferred; |
| 24 | |
| 25 | use MediaWiki\HookContainer\HookRunner; |
| 26 | use MediaWiki\MediaWikiServices; |
| 27 | use MediaWiki\User\UserIdentity; |
| 28 | use RuntimeException; |
| 29 | use Wikimedia\Assert\Assert; |
| 30 | |
| 31 | /** |
| 32 | * Handles increment the edit count for a given set of users |
| 33 | */ |
| 34 | class UserEditCountUpdate implements DeferrableUpdate, MergeableUpdate { |
| 35 | /** |
| 36 | * We need to keep a single copy of the relevant UserIdentity to be able to pass to UserEditTracker |
| 37 | * |
| 38 | * @var UserEditCountInfo[] Map of (user ID => UserEditCountInfo) |
| 39 | */ |
| 40 | private $infoByUser; |
| 41 | |
| 42 | /** |
| 43 | * @param UserIdentity $user |
| 44 | * @param int $increment |
| 45 | */ |
| 46 | public function __construct( UserIdentity $user, $increment ) { |
| 47 | if ( !$user->getId() ) { |
| 48 | throw new RuntimeException( "Got anonymous user" ); |
| 49 | } |
| 50 | $this->infoByUser = [ |
| 51 | $user->getId() => new UserEditCountInfo( $user, $increment ), |
| 52 | ]; |
| 53 | } |
| 54 | |
| 55 | public function merge( MergeableUpdate $update ) { |
| 56 | /** @var UserEditCountUpdate $update */ |
| 57 | Assert::parameterType( __CLASS__, $update, '$update' ); |
| 58 | '@phan-var UserEditCountUpdate $update'; |
| 59 | |
| 60 | foreach ( $update->infoByUser as $userId => $info ) { |
| 61 | if ( !isset( $this->infoByUser[$userId] ) ) { |
| 62 | $this->infoByUser[$userId] = $info; |
| 63 | } else { |
| 64 | $this->infoByUser[$userId]->merge( $info ); |
| 65 | } |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Commits the provided user edit count increments to the database |
| 71 | */ |
| 72 | public function doUpdate() { |
| 73 | $mwServices = MediaWikiServices::getInstance(); |
| 74 | $lb = $mwServices->getDBLoadBalancer(); |
| 75 | $dbw = $lb->getConnectionRef( DB_PRIMARY ); |
| 76 | $editTracker = $mwServices->getUserEditTracker(); |
| 77 | $fname = __METHOD__; |
| 78 | |
| 79 | ( new AutoCommitUpdate( $dbw, __METHOD__, function () use ( $lb, $dbw, $fname, $editTracker ) { |
| 80 | foreach ( $this->infoByUser as $userId => $info ) { |
| 81 | $dbw->newUpdateQueryBuilder() |
| 82 | ->update( 'user' ) |
| 83 | ->set( [ 'user_editcount=user_editcount+' . (int)$info->getIncrement() ] ) |
| 84 | ->where( [ 'user_id' => $userId, 'user_editcount IS NOT NULL' ] ) |
| 85 | ->caller( $fname )->execute(); |
| 86 | // Lazy initialization check... |
| 87 | if ( $dbw->affectedRows() == 0 ) { |
| 88 | // The user_editcount is probably NULL (e.g. not initialized). |
| 89 | // Since this update runs after the new revisions were committed, |
| 90 | // wait for the replica DB to catch up so they will be counted. |
| 91 | $dbr = $lb->getConnectionRef( DB_REPLICA ); |
| 92 | // If $dbr is actually the primary DB, then clearing the snapshot |
| 93 | // is harmless and waitForPrimaryPos() will just no-op. |
| 94 | $dbr->flushSnapshot( $fname ); |
| 95 | $lb->waitForPrimaryPos( $dbr ); |
| 96 | $editTracker->initializeUserEditCount( $info->getUser() ); |
| 97 | } |
| 98 | |
| 99 | // Clear the edit count in the UserEditTracker cache. |
| 100 | $editTracker->clearUserEditCache( $info->getUser() ); |
| 101 | } |
| 102 | } ) )->doUpdate(); |
| 103 | |
| 104 | $hookRunner = new HookRunner( $mwServices->getHookContainer() ); |
| 105 | $hookRunner->onUserEditCountUpdate( array_values( $this->infoByUser ) ); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /** @deprecated class alias since 1.42 */ |
| 110 | class_alias( UserEditCountUpdate::class, 'UserEditCountUpdate' ); |