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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\RecentChanges\ChangesListQuery; |
| 4 | |
| 5 | use MediaWiki\User\UserIdentity; |
| 6 | use MediaWiki\User\UserIdentityValue; |
| 7 | use stdClass; |
| 8 | use Wikimedia\Rdbms\IReadableDatabase; |
| 9 | |
| 10 | /** |
| 11 | * @internal For use by ChangesListQuery |
| 12 | * @since 1.45 |
| 13 | * @ingroup RecentChanges |
| 14 | */ |
| 15 | class UserCondition extends ChangesListConditionBase { |
| 16 | /** @inheritDoc */ |
| 17 | public function validateValue( $value ) { |
| 18 | if ( $value instanceof UserIdentity ) { |
| 19 | // Convert to UserIdentityValue since that is stringable and so will |
| 20 | // work with array_unique() etc. |
| 21 | return new UserIdentityValue( $value->getId(), $value->getName() ); |
| 22 | } else { |
| 23 | throw new \InvalidArgumentException( 'user filter value must be a UserIdentity' ); |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * @param stdClass $row |
| 29 | * @param UserIdentityValue $value |
| 30 | * @return bool |
| 31 | */ |
| 32 | public function evaluate( stdClass $row, $value ): bool { |
| 33 | return $row->rc_user_text === $value->getName(); |
| 34 | } |
| 35 | |
| 36 | protected function prepareCapture( IReadableDatabase $dbr, QueryBackend $query ) { |
| 37 | $query->rcUserFields(); |
| 38 | } |
| 39 | |
| 40 | protected function prepareConds( IReadableDatabase $dbr, QueryBackend $query ) { |
| 41 | [ $required, $excluded ] = $this->getUniqueValues(); |
| 42 | if ( $required === [] ) { |
| 43 | $query->forceEmptySet(); |
| 44 | } elseif ( $required ) { |
| 45 | [ $ids, $names ] = $this->makeSet( $required ); |
| 46 | $orConds = []; |
| 47 | if ( $ids ) { |
| 48 | $orConds[] = $dbr->expr( 'actor_user', '=', $ids ); |
| 49 | } |
| 50 | if ( $names ) { |
| 51 | $orConds[] = $dbr->expr( 'actor_name', '=', $names ); |
| 52 | } |
| 53 | $query->where( count( $orConds ) > 1 ? $dbr->orExpr( $orConds ) : $orConds[0] ); |
| 54 | $query->joinForConds( 'actor' )->reorderable(); |
| 55 | $query->adjustDensity( QueryBackend::DENSITY_USER ); |
| 56 | } elseif ( $excluded ) { |
| 57 | $names = $this->makeNames( $excluded ); |
| 58 | $query->where( $dbr->expr( 'actor_name', '!=', $names ) ); |
| 59 | $query->joinForConds( 'actor' )->straight(); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * @param UserIdentityValue[] $users |
| 65 | * @return array{int[],string[]} |
| 66 | */ |
| 67 | private function makeSet( $users ) { |
| 68 | $ids = []; |
| 69 | $names = []; |
| 70 | foreach ( $users as $user ) { |
| 71 | if ( $user->isRegistered() ) { |
| 72 | $ids[] = $user->getId(); |
| 73 | } else { |
| 74 | $names[] = $user->getName(); |
| 75 | } |
| 76 | } |
| 77 | return [ $ids, $names ]; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @param UserIdentityValue[] $users |
| 82 | * @return string[] |
| 83 | */ |
| 84 | private function makeNames( $users ) { |
| 85 | $names = []; |
| 86 | foreach ( $users as $user ) { |
| 87 | $names[] = $user->getName(); |
| 88 | } |
| 89 | return $names; |
| 90 | } |
| 91 | } |