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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Maintenance; |
| 4 | |
| 5 | use Flow\Container; |
| 6 | use Flow\Model\PostRevision; |
| 7 | use Flow\Model\UUID; |
| 8 | use Flow\Model\Workflow; |
| 9 | use MediaWiki\Maintenance\LoggedUpdateMaintenance; |
| 10 | |
| 11 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 12 | if ( $IP === false ) { |
| 13 | $IP = __DIR__ . '/../../..'; |
| 14 | } |
| 15 | |
| 16 | require_once "$IP/maintenance/Maintenance.php"; |
| 17 | |
| 18 | /** |
| 19 | * Update all xxx_user_wiki field to have the correct wiki name |
| 20 | * |
| 21 | * @ingroup Maintenance |
| 22 | */ |
| 23 | class FlowUpdateUserWiki extends LoggedUpdateMaintenance { |
| 24 | |
| 25 | /** |
| 26 | * Used to track the number of current updated count |
| 27 | * |
| 28 | * @var int |
| 29 | */ |
| 30 | private $updatedCount = 0; |
| 31 | |
| 32 | public function __construct() { |
| 33 | parent::__construct(); |
| 34 | $this->addDescription( "Update xxx_user_wiki field in tables: flow_workflow, flow_tree_revision, flow_revision" ); |
| 35 | $this->requireExtension( 'Flow' ); |
| 36 | $this->setBatchSize( 300 ); |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * This is a top-to-bottom update, the process is like this: |
| 41 | * workflow -> header -> header revision -> history |
| 42 | * workflow -> topic list -> post tree revision -> post revision -> history |
| 43 | * |
| 44 | * Some side effect, the script will also update those *_user_wiki fields with |
| 45 | * empty *_user_id and *_user_ip, but this doesn't hurt. Alternatively, we could |
| 46 | * add a check user_id != 0 and user_ip is not null to the query, but this will |
| 47 | * result in more db queries |
| 48 | * @return true |
| 49 | */ |
| 50 | protected function doDBUpdates() { |
| 51 | $id = ''; |
| 52 | $batchSize = $this->getBatchSize(); |
| 53 | $count = $batchSize; |
| 54 | $dbr = Container::get( 'db.factory' )->getDB( DB_REPLICA ); |
| 55 | |
| 56 | // If table flow_header_revision does not exist, that means the wiki |
| 57 | // has run the data migration before or the wiki starts from scratch, |
| 58 | // there is no point to run the script againt invalid tables |
| 59 | if ( !$dbr->tableExists( 'flow_header_revision', __METHOD__ ) ) { |
| 60 | return true; |
| 61 | } |
| 62 | |
| 63 | while ( $count == $this->mBatchSize ) { |
| 64 | $count = 0; |
| 65 | $res = $dbr->newSelectQueryBuilder() |
| 66 | ->select( [ 'workflow_wiki', 'workflow_id', 'workflow_type' ] ) |
| 67 | ->from( 'flow_workflow' ) |
| 68 | ->where( $dbr->expr( 'workflow_id', '>', $id ) ) |
| 69 | ->orderBy( 'workflow_id' ) |
| 70 | ->limit( $batchSize ) |
| 71 | ->caller( __METHOD__ ) |
| 72 | ->fetchResultSet(); |
| 73 | foreach ( $res as $row ) { |
| 74 | $count++; |
| 75 | $id = $row->workflow_id; |
| 76 | $uuid = UUID::create( $row->workflow_id ); |
| 77 | $workflow = Container::get( 'storage.workflow' )->get( $uuid ); |
| 78 | if ( $workflow ) { |
| 79 | // definition type 'topic' is always under a 'discussion' and they |
| 80 | // will be handled while processing 'discussion' |
| 81 | if ( $row->workflow_type == 'discussion' ) { |
| 82 | $this->updateHeader( $workflow, $row->workflow_wiki ); |
| 83 | $this->updateTopicList( $workflow, $row->workflow_wiki ); |
| 84 | } |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | return true; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Update header |
| 94 | * @param Workflow $workflow |
| 95 | * @param string $wiki |
| 96 | */ |
| 97 | private function updateHeader( $workflow, $wiki ) { |
| 98 | $id = ''; |
| 99 | $batchSize = $this->getBatchSize(); |
| 100 | $count = $batchSize; |
| 101 | $dbr = Container::get( 'db.factory' )->getDB( DB_REPLICA ); |
| 102 | |
| 103 | while ( $count == $batchSize ) { |
| 104 | $count = 0; |
| 105 | $res = $dbr->newSelectQueryBuilder() |
| 106 | ->select( [ 'rev_id', 'rev_type' ] ) |
| 107 | ->from( 'flow_header_revision' ) |
| 108 | ->join( 'flow_revision', null, 'header_rev_id = rev_id' ) |
| 109 | ->where( [ |
| 110 | $dbr->expr( 'rev_id', '>', $id ), |
| 111 | 'header_workflow_id' => $workflow->getId()->getBinary() |
| 112 | ] ) |
| 113 | ->orderBy( 'header_rev_id' ) |
| 114 | ->limit( $batchSize ) |
| 115 | ->caller( __METHOD__ ) |
| 116 | ->fetchResultset(); |
| 117 | foreach ( $res as $row ) { |
| 118 | $count++; |
| 119 | $id = $row->rev_id; |
| 120 | $revision = Container::get( 'storage.header' )->get( UUID::create( $row->rev_id ) ); |
| 121 | if ( $revision ) { |
| 122 | $this->updateRevision( $revision, $wiki ); |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Update topic list |
| 130 | * @param Workflow $workflow |
| 131 | * @param string $wiki |
| 132 | */ |
| 133 | private function updateTopicList( $workflow, $wiki ) { |
| 134 | $id = ''; |
| 135 | $batchSize = $this->getBatchSize(); |
| 136 | $count = $batchSize; |
| 137 | $dbr = Container::get( 'db.factory' )->getDB( DB_REPLICA ); |
| 138 | |
| 139 | while ( $count == $batchSize ) { |
| 140 | $count = 0; |
| 141 | $res = $dbr->newSelectQueryBuilder() |
| 142 | ->select( 'topic_id' ) |
| 143 | ->from( 'flow_topic_list' ) |
| 144 | ->where( [ |
| 145 | 'topic_list_id' => $workflow->getId()->getBinary(), |
| 146 | $dbr->expr( 'topic_id', '>', $id ), |
| 147 | ] ) |
| 148 | ->orderBy( 'topic_id' ) |
| 149 | ->limit( $batchSize ) |
| 150 | ->caller( __METHOD__ ) |
| 151 | ->fetchResultSet(); |
| 152 | $index = 0; |
| 153 | foreach ( $res as $row ) { |
| 154 | $count++; |
| 155 | $index++; |
| 156 | $id = $row->topic_id; |
| 157 | $post = Container::get( 'loader.root_post' )->get( UUID::create( $row->topic_id ) ); |
| 158 | if ( $post ) { |
| 159 | $this->updatePost( $post, $wiki ); |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Update post |
| 167 | * @param PostRevision $post |
| 168 | * @param string $wiki |
| 169 | */ |
| 170 | private function updatePost( $post, $wiki ) { |
| 171 | $this->updateHistory( $post, $wiki ); |
| 172 | $this->updateRevision( $post, $wiki ); |
| 173 | foreach ( $post->getChildren() as $child ) { |
| 174 | $this->updatePost( $child, $wiki ); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Update history revision |
| 180 | * @param PostRevision $post |
| 181 | * @param string $wiki |
| 182 | */ |
| 183 | private function updateHistory( PostRevision $post, $wiki ) { |
| 184 | if ( $post->getPrevRevisionId() ) { |
| 185 | $parent = Container::get( 'storage.post' )->get( UUID::create( $post->getPrevRevisionId() ) ); |
| 186 | if ( $parent ) { |
| 187 | $this->updateRevision( $parent, $wiki ); |
| 188 | $this->updateHistory( $parent, $wiki ); |
| 189 | } |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Update either header or post revision |
| 195 | * @param PostRevision $revision |
| 196 | * @param string $wiki |
| 197 | */ |
| 198 | private function updateRevision( $revision, $wiki ) { |
| 199 | if ( !$revision ) { |
| 200 | return; |
| 201 | } |
| 202 | $type = $revision->getRevisionType(); |
| 203 | |
| 204 | $dbw = Container::get( 'db.factory' )->getDB( DB_PRIMARY ); |
| 205 | $dbw->newUpdateQueryBuilder() |
| 206 | ->update( 'flow_revision' ) |
| 207 | ->set( [ |
| 208 | 'rev_user_wiki' => $wiki, |
| 209 | 'rev_mod_user_wiki' => $wiki, |
| 210 | 'rev_edit_user_wiki' => $wiki, |
| 211 | ] ) |
| 212 | ->where( [ |
| 213 | 'rev_id' => $revision->getRevisionId()->getBinary(), |
| 214 | ] ) |
| 215 | ->caller( __METHOD__ ) |
| 216 | ->execute(); |
| 217 | $this->checkForReplica(); |
| 218 | |
| 219 | if ( $type === 'post' ) { |
| 220 | $dbw->newUpdateQueryBuilder() |
| 221 | ->update( 'flow_tree_revision' ) |
| 222 | ->set( [ |
| 223 | 'tree_orig_user_wiki' => $wiki, |
| 224 | ] ) |
| 225 | ->where( [ |
| 226 | 'tree_rev_id' => $revision->getRevisionId()->getBinary(), |
| 227 | ] ) |
| 228 | ->caller( __METHOD__ ) |
| 229 | ->execute(); |
| 230 | $this->checkForReplica(); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | private function checkForReplica() { |
| 235 | global $wgFlowCluster; |
| 236 | |
| 237 | $this->updatedCount++; |
| 238 | if ( $this->updatedCount > $this->getBatchSize() ) { |
| 239 | $lbFactory = $this->getServiceContainer()->getDBLoadBalancerFactory(); |
| 240 | $lbFactory->waitForReplication( [ 'cluster' => $wgFlowCluster ] ); |
| 241 | $this->updatedCount = 0; |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /** |
| 246 | * Get the update key name to go in the update log table |
| 247 | * |
| 248 | * @return string |
| 249 | */ |
| 250 | protected function getUpdateKey() { |
| 251 | return 'FlowUpdateUserWiki'; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | $maintClass = FlowUpdateUserWiki::class; |
| 256 | require_once RUN_MAINTENANCE_IF_MAIN; |