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| 1 | <?php |
| 2 | |
| 3 | use MediaWiki\Context\RequestContext; |
| 4 | use MediaWiki\MediaWikiServices; |
| 5 | use MediaWiki\Output\OutputPage; |
| 6 | use MediaWiki\Revision\RevisionRecord; |
| 7 | use MediaWiki\Title\Title; |
| 8 | use MediaWiki\User\User; |
| 9 | |
| 10 | class LqtDeletionController { |
| 11 | /** @var Title[]|null */ |
| 12 | public static $pageids_to_revive; |
| 13 | |
| 14 | public static function onArticleDeleteComplete( WikiPage &$article, User &$user, $reason, $id ) { |
| 15 | $title = $article->getTitle(); |
| 16 | |
| 17 | if ( $title->getNamespace() != NS_LQT_THREAD ) { |
| 18 | return true; |
| 19 | } |
| 20 | |
| 21 | $threads = Threads::where( [ 'thread_root' => $id ] ); |
| 22 | |
| 23 | if ( !count( $threads ) ) { |
| 24 | wfDebugLog( 'LiquidThreads', __METHOD__ . ": no threads with root $id, ignoring...\n" ); |
| 25 | return true; |
| 26 | } |
| 27 | |
| 28 | $thread = array_pop( $threads ); |
| 29 | |
| 30 | // Mark the thread as deleted |
| 31 | $thread->delete( $reason ); |
| 32 | |
| 33 | // Avoid orphaning subthreads, update their parentage. |
| 34 | if ( $thread->replies() && $thread->isTopmostThread() ) { |
| 35 | $reason = wfMessage( 'lqt-delete-parent-deleted', $reason )->text(); |
| 36 | self::recursivelyDeleteReplies( $thread, $reason, $user ); |
| 37 | $out = RequestContext::getMain()->getOutput(); |
| 38 | $out->addWikiMsg( 'lqt-delete-replies-done' ); |
| 39 | } elseif ( $thread->replies() ) { |
| 40 | foreach ( $thread->replies() as $reply ) { |
| 41 | $reply->setSuperthread( $thread->superthread() ); |
| 42 | $reply->save(); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | // Synchronise the first 500 threads, in reverse order by thread id. If |
| 47 | // there are more threads to synchronise, the job queue will take over. |
| 48 | Threads::synchroniseArticleData( $article, 500, 'cascade' ); |
| 49 | |
| 50 | return true; |
| 51 | } |
| 52 | |
| 53 | public static function recursivelyDeleteReplies( Thread $thread, $reason, User $user ) { |
| 54 | foreach ( $thread->replies() as $reply ) { |
| 55 | $reply->root()->getPage()->doDeleteArticleReal( $reason, $user ); |
| 56 | $reply->delete( $reason ); |
| 57 | self::recursivelyDeleteReplies( $reply, $reason, $user ); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | public static function onRevisionUndeleted( RevisionRecord $revisionRecord, $oldPageId ) { |
| 62 | $linkTarget = $revisionRecord->getPageAsLinkTarget(); |
| 63 | if ( $linkTarget->getNamespace() == NS_LQT_THREAD ) { |
| 64 | self::$pageids_to_revive[$oldPageId] = Title::newFromLinkTarget( $linkTarget ); |
| 65 | } |
| 66 | |
| 67 | return true; |
| 68 | } |
| 69 | |
| 70 | public static function onArticleUndelete( &$udTitle, $created, $comment = '' ) { |
| 71 | if ( !self::$pageids_to_revive ) { |
| 72 | return true; |
| 73 | } |
| 74 | |
| 75 | foreach ( self::$pageids_to_revive as $pageid => $title ) { |
| 76 | if ( $pageid == 0 ) { |
| 77 | continue; |
| 78 | } |
| 79 | |
| 80 | // Try to get comment for old versions where it isn't passed, hacky :( |
| 81 | if ( !$comment ) { |
| 82 | global $wgRequest; |
| 83 | $comment = $wgRequest->getText( 'wpComment' ); |
| 84 | } |
| 85 | |
| 86 | // TX has not been committed yet, so we must select from the master |
| 87 | $dbw = MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase(); |
| 88 | $res = $dbw->newSelectQueryBuilder() |
| 89 | ->select( '*' ) |
| 90 | ->from( 'thread' ) |
| 91 | ->where( [ 'thread_root' => $pageid ] ) |
| 92 | ->caller( __METHOD__ ) |
| 93 | ->fetchResultSet(); |
| 94 | $threads = Threads::loadFromResult( $res, $dbw ); |
| 95 | |
| 96 | if ( count( $threads ) ) { |
| 97 | $thread = array_pop( $threads ); |
| 98 | $thread->setRoot( new Article( $title, 0 ) ); |
| 99 | $thread->undelete( $comment ); |
| 100 | } else { |
| 101 | wfDebug( __METHOD__ . ":No thread found with root set to $pageid (??)\n" ); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | // Synchronise the first 500 threads, in reverse order by thread id. If |
| 106 | // there are more threads to synchronise, the job queue will take over. |
| 107 | Threads::synchroniseArticleData( |
| 108 | MediaWikiServices::getInstance()->getWikiPageFactory()->newFromTitle( $udTitle ), |
| 109 | 500, |
| 110 | 'cascade' |
| 111 | ); |
| 112 | |
| 113 | return true; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * @param Article $article |
| 118 | * @param OutputPage $out |
| 119 | * @param string &$reason |
| 120 | * @return bool |
| 121 | */ |
| 122 | public static function onArticleConfirmDelete( $article, $out, &$reason ) { |
| 123 | if ( $article->getTitle()->getNamespace() != NS_LQT_THREAD ) { |
| 124 | return true; |
| 125 | } |
| 126 | |
| 127 | $thread = Threads::withRoot( $article->getPage() ); |
| 128 | |
| 129 | if ( !$thread ) { |
| 130 | return true; |
| 131 | } |
| 132 | |
| 133 | if ( $thread->isTopmostThread() && count( $thread->replies() ) ) { |
| 134 | $out->wrapWikiMsg( |
| 135 | '<strong>$1</strong>', |
| 136 | 'lqt-delete-parent-warning' |
| 137 | ); |
| 138 | } |
| 139 | |
| 140 | return true; |
| 141 | } |
| 142 | |
| 143 | public static function onArticleDelete( $wikiPage ) { |
| 144 | // Synchronise article data so that moving the article doesn't break any |
| 145 | // article association. |
| 146 | Threads::synchroniseArticleData( $wikiPage ); |
| 147 | |
| 148 | return true; |
| 149 | } |
| 150 | } |