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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Formatter; |
| 4 | |
| 5 | use Flow\Data\Utils\SortRevisionsByRevisionId; |
| 6 | use Flow\Exception\FlowException; |
| 7 | use Flow\Model\PostRevision; |
| 8 | use Flow\Model\UUID; |
| 9 | use MediaWiki\Exception\MWExceptionHandler; |
| 10 | |
| 11 | class TopicHistoryQuery extends HistoryQuery { |
| 12 | /** |
| 13 | * @param UUID $topicRootId |
| 14 | * @param int $limit |
| 15 | * @param UUID|null $offset |
| 16 | * @param string $direction 'rev' or 'fwd' |
| 17 | * @return FormatterRow[] |
| 18 | */ |
| 19 | public function getResults( UUID $topicRootId, $limit = 50, ?UUID $offset = null, $direction = 'fwd' ) { |
| 20 | $options = $this->getOptions( $direction, $limit, $offset ); |
| 21 | |
| 22 | $topicPostHistory = $this->getTopicPostResults( $topicRootId, $options ) ?: []; |
| 23 | $topicSummaryHistory = $this->getTopicSummaryResults( $topicRootId, $options ) ?: []; |
| 24 | |
| 25 | $history = array_merge( $topicPostHistory, $topicSummaryHistory ); |
| 26 | usort( $history, new SortRevisionsByRevisionId( $options['order'] ) ); |
| 27 | |
| 28 | if ( isset( $options['limit'] ) ) { |
| 29 | $history = array_splice( $history, 0, $options['limit'] ); |
| 30 | } |
| 31 | |
| 32 | // See explanation in BoardHistoryQuery::getResults. |
| 33 | if ( $direction === 'rev' ) { |
| 34 | $history = array_reverse( $history ); |
| 35 | } |
| 36 | |
| 37 | $this->loadMetadataBatch( $history ); |
| 38 | $results = $replies = []; |
| 39 | foreach ( $history as $revision ) { |
| 40 | try { |
| 41 | $results[] = $row = new TopicRow; |
| 42 | $this->buildResult( $revision, null, $row ); |
| 43 | if ( $revision instanceof PostRevision ) { |
| 44 | $replyToId = $revision->getReplyToId(); |
| 45 | if ( $replyToId ) { |
| 46 | // $revisionId into the key rather than value prevents |
| 47 | // duplicate insertion |
| 48 | $replies[$replyToId->getAlphadecimal()][$revision->getPostId()->getAlphadecimal()] = true; |
| 49 | } |
| 50 | } |
| 51 | } catch ( FlowException $e ) { |
| 52 | MWExceptionHandler::logException( $e ); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | foreach ( $results as $result ) { |
| 57 | if ( $result->revision instanceof PostRevision ) { |
| 58 | $alpha = $result->revision->getPostId()->getAlphadecimal(); |
| 59 | $result->replies = isset( $replies[$alpha] ) ? array_keys( $replies[$alpha] ) : []; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | return $results; |
| 64 | } |
| 65 | |
| 66 | protected function getTopicPostResults( UUID $topicRootId, $options ) { |
| 67 | // Can't use 'PostRevision' because we need to get only the ones with the right topic ID. |
| 68 | return $this->doInternalQueries( |
| 69 | 'PostRevisionTopicHistoryEntry', |
| 70 | [ |
| 71 | 'topic_root_id' => $topicRootId, |
| 72 | ], |
| 73 | $options, |
| 74 | self::POST_OVERFETCH_FACTOR |
| 75 | ); |
| 76 | } |
| 77 | |
| 78 | protected function getTopicSummaryResults( UUID $topicRootId, $options ) { |
| 79 | return $this->storage->find( |
| 80 | 'PostSummary', |
| 81 | [ |
| 82 | 'rev_type_id' => $topicRootId, |
| 83 | ], |
| 84 | $options |
| 85 | ); |
| 86 | } |
| 87 | } |