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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 * http://www.gnu.org/copyleft/gpl.html
19 require_once __DIR__
. '/Maintenance.php';
22 * Populate and improve accuracy of change_tag_def statistics.
24 * @ingroup Maintenance
26 class PopulateChangeTagDef
extends Maintenance
{
27 /** @var Wikimedia\Rdbms\ILBFactory */
30 public function __construct() {
31 parent
::__construct();
32 $this->addDescription( 'Populate and improve accuracy of change_tag_def statistics' );
33 $this->addOption( 'dry-run', 'Print debug info instead of actually deleting' );
34 $this->setBatchSize( 1000 );
37 'Sleep time (in seconds) between every batch',
41 $this->addOption( 'populate-only', 'Do not update change_tag_def table' );
44 public function execute() {
45 global $wgChangeTagsSchemaMigrationStage;
46 $this->lbFactory
= MediaWiki\MediaWikiServices
::getInstance()->getDBLoadBalancerFactory();
47 $this->setBatchSize( $this->getOption( 'batch-size', $this->getBatchSize() ) );
49 $this->countDown( 5 );
50 if ( $wgChangeTagsSchemaMigrationStage < MIGRATION_NEW
) {
51 if ( !$this->hasOption( 'populate-only' ) ) {
52 $this->updateCountTag();
54 $this->backpopulateChangeTagId();
56 $this->updateCountTagId();
60 // $this->cleanZeroCountRows();
63 private function updateCountTagId() {
64 $dbr = $this->lbFactory
->getMainLB()->getConnection( DB_REPLICA
);
66 // This query can be pretty expensive, don't run it on master
69 [ 'ct_tag_id', 'hitcount' => 'count(*)' ],
72 [ 'GROUP BY' => 'ct_tag_id' ]
75 $dbw = $this->lbFactory
->getMainLB()->getConnection( DB_MASTER
);
77 foreach ( $res as $row ) {
78 if ( !$row->ct_tag_id
) {
82 if ( $this->hasOption( 'dry-run' ) ) {
83 $this->output( 'This row will be updated: ' . implode( ', ', $row ) . "\n" );
89 [ 'ctd_count' => $row->hitcount
],
90 [ 'ctd_id' => $row->ct_tag_id
],
94 $this->lbFactory
->waitForReplication();
97 private function updateCountTag() {
98 $dbr = $this->lbFactory
->getMainLB()->getConnection( DB_REPLICA
);
100 // This query can be pretty expensive, don't run it on master
103 [ 'ct_tag', 'hitcount' => 'count(*)' ],
106 [ 'GROUP BY' => 'ct_tag' ]
109 $dbw = $this->lbFactory
->getMainLB()->getConnection( DB_MASTER
);
111 foreach ( $res as $row ) {
113 if ( !$row->ct_tag
) {
117 if ( $this->hasOption( 'dry-run' ) ) {
118 $this->output( 'This row will be updated: ' . $row->ct_tag
. $row->hitcount
. "\n" );
125 'ctd_name' => $row->ct_tag
,
126 'ctd_user_defined' => 0,
127 'ctd_count' => $row->hitcount
130 [ 'ctd_count' => $row->hitcount
],
134 $this->lbFactory
->waitForReplication();
137 private function backpopulateChangeTagId() {
138 $dbr = $this->lbFactory
->getMainLB()->getConnection( DB_REPLICA
);
139 $changeTagDefs = $dbr->select(
141 [ 'ctd_name', 'ctd_id' ],
144 [ 'ORDER BY' => 'ctd_id' ]
147 foreach ( $changeTagDefs as $row ) {
148 $this->backpopulateChangeTagPerTag( $row->ctd_name
, $row->ctd_id
);
152 private function backpopulateChangeTagPerTag( $tagName, $tagId ) {
153 $dbr = $this->lbFactory
->getMainLB()->getConnection( DB_REPLICA
);
154 $dbw = $this->lbFactory
->getMainLB()->getConnection( DB_MASTER
);
155 $sleep = (int)$this->getOption( 'sleep', 10 );
157 $this->output( "Starting to add ct_tag_id = {$tagId} for ct_tag = {$tagName}\n" );
159 // Given that indexes might not be there, it's better to use replica
160 $ids = $dbr->selectFieldValues(
163 [ 'ct_tag' => $tagName, 'ct_tag_id' => null, 'ct_id > ' . $lastId ],
165 [ 'LIMIT' => $this->getBatchSize(), 'ORDER BY' => 'ct_id' ]
171 $lastId = end( $ids );
173 if ( $this->hasOption( 'dry-run' ) ) {
175 "These ids will be changed to have \"{$tagId}\" as tag id: " . implode( ', ', $ids ) . "\n"
179 $this->output( "Updating ct_tag_id = {$tagId} up to row ct_id = {$lastId}\n" );
184 [ 'ct_tag_id' => $tagId ],
189 $this->lbFactory
->waitForReplication();
195 $this->output( "Finished adding ct_tag_id = {$tagId} for ct_tag = {$tagName}\n" );
200 $maintClass = PopulateChangeTagDef
::class;
201 require_once RUN_MAINTENANCE_IF_MAIN
;