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| 1 | <?php |
| 2 | |
| 3 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 4 | if ( $IP === false ) { |
| 5 | $IP = __DIR__ . '/../../..'; |
| 6 | } |
| 7 | require_once "$IP/maintenance/Maintenance.php"; |
| 8 | |
| 9 | /** |
| 10 | * Cleans up the Revision Tag table which is where CentralNotice stores |
| 11 | * metadata required for the Translate extension. |
| 12 | * |
| 13 | * So far this class: |
| 14 | * * Removes duplicate revision entries (there should be only one per banner) |
| 15 | * * Associates entries with a banner by name |
| 16 | * * Removes entries that have no banner object |
| 17 | */ |
| 18 | class CleanCNTranslateMetadata extends Maintenance { |
| 19 | /** @var string|null */ |
| 20 | private $ttag; |
| 21 | |
| 22 | public function __construct() { |
| 23 | parent::__construct(); |
| 24 | $this->requireExtension( 'CentralNotice' ); |
| 25 | } |
| 26 | |
| 27 | public function execute() { |
| 28 | $this->ttag = Banner::TRANSLATE_BANNER_TAG; |
| 29 | |
| 30 | $this->cleanDuplicates(); |
| 31 | $this->populateIDs(); |
| 32 | $this->deleteOrphans(); |
| 33 | |
| 34 | ChoiceDataProvider::invalidateCache(); |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * Remove duplicated revtags |
| 39 | */ |
| 40 | private function cleanDuplicates() { |
| 41 | $this->output( "Cleaning duplicates\n" ); |
| 42 | |
| 43 | $db = CNDatabase::getDb( DB_PRIMARY ); |
| 44 | |
| 45 | $res = $db->newSelectQueryBuilder() |
| 46 | ->select( [ |
| 47 | 'rt_page', |
| 48 | 'maxrev' => 'MAX(rt_revision)', |
| 49 | 'count' => 'COUNT(*)' |
| 50 | ] ) |
| 51 | ->from( 'revtag' ) |
| 52 | ->where( [ 'rt_type' => $this->ttag ] ) |
| 53 | ->groupBy( 'rt_page' ) |
| 54 | ->caller( __METHOD__ ) |
| 55 | ->fetchResultSet(); |
| 56 | |
| 57 | foreach ( $res as $row ) { |
| 58 | if ( (int)$row->count === 1 ) { |
| 59 | continue; |
| 60 | } |
| 61 | |
| 62 | $maxRev = (int)$row->maxrev; |
| 63 | $db->newDeleteQueryBuilder() |
| 64 | ->deleteFrom( 'revtag' ) |
| 65 | ->where( [ |
| 66 | 'rt_type' => $this->ttag, |
| 67 | 'rt_page' => $row->rt_page, |
| 68 | $db->expr( 'rt_revision', '!=', $maxRev ), |
| 69 | ] ) |
| 70 | ->caller( __METHOD__ ) |
| 71 | ->execute(); |
| 72 | $numRows = $db->affectedRows(); |
| 73 | $this->output( |
| 74 | " -- Deleted {$numRows} rows for banner with page id {$row->rt_page}\n" |
| 75 | ); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Attach a banner ID with a orphan metadata line |
| 81 | */ |
| 82 | private function populateIDs() { |
| 83 | $this->output( "Associating metadata with banner ids\n" ); |
| 84 | |
| 85 | $db = CNDatabase::getDb( DB_PRIMARY ); |
| 86 | |
| 87 | $res = $db->newSelectQueryBuilder() |
| 88 | ->select( [ 'rt_page', 'rt_revision', 'page_title', 'tmp_id' ] ) |
| 89 | ->from( 'revtag' ) |
| 90 | ->join( 'page', null, 'rt_page=page_id' ) |
| 91 | ->join( 'cn_templates', null, [ |
| 92 | # Length of "centralnotice-template-" |
| 93 | 'tmp_name=substr(page_title, 24)' |
| 94 | ] ) |
| 95 | ->where( [ |
| 96 | 'rt_type' => $this->ttag, |
| 97 | 'rt_value' => null, |
| 98 | ] ) |
| 99 | ->caller( __METHOD__ ) |
| 100 | ->fetchResultSet(); |
| 101 | |
| 102 | foreach ( $res as $row ) { |
| 103 | $this->output( " -- Associating banner id {$row->tmp_id} " . |
| 104 | "with revtag with page id {$row->rt_page}\n" ); |
| 105 | $db->newUpdateQueryBuilder() |
| 106 | ->update( 'revtag' ) |
| 107 | ->set( [ 'rt_value' => $row->tmp_id ] ) |
| 108 | ->where( [ |
| 109 | 'rt_type' => $this->ttag, |
| 110 | 'rt_page' => $row->rt_page, |
| 111 | 'rt_value' => null, |
| 112 | ] ) |
| 113 | ->caller( __METHOD__ ) |
| 114 | ->execute(); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Delete rows that have no banner ID associated with them |
| 120 | */ |
| 121 | private function deleteOrphans() { |
| 122 | $db = CNDatabase::getDb( DB_PRIMARY ); |
| 123 | $this->output( "Preparing to delete orphaned rows\n" ); |
| 124 | |
| 125 | $res = $db->newSelectQueryBuilder() |
| 126 | ->select( [ 'rt_page', 'rt_revision' ] ) |
| 127 | ->from( 'revtag' ) |
| 128 | ->where( [ 'rt_type' => $this->ttag, 'rt_value' => null ] ) |
| 129 | ->caller( __METHOD__ ) |
| 130 | ->fetchResultSet(); |
| 131 | |
| 132 | foreach ( $res as $row ) { |
| 133 | $this->output( " -- Deleting orphan row {$row->rt_page}:{$row->rt_revision}\n" ); |
| 134 | $db->newDeleteQueryBuilder() |
| 135 | ->deleteFrom( 'revtag' ) |
| 136 | ->where( [ |
| 137 | 'rt_type' => $this->ttag, |
| 138 | 'rt_page' => $row->rt_page, |
| 139 | 'rt_revision' => $row->rt_revision, |
| 140 | 'rt_value' => null, // Just in case something updated it |
| 141 | ] ) |
| 142 | ->caller( __METHOD__ ) |
| 143 | ->execute(); |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | $maintClass = CleanCNTranslateMetadata::class; |
| 149 | require_once RUN_MAINTENANCE_IF_MAIN; |