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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Query; |
| 4 | |
| 5 | use CirrusSearch\Parser\AST\KeywordFeatureNode; |
| 6 | use CirrusSearch\Query\Builder\QueryBuildingContext; |
| 7 | use CirrusSearch\Search\SearchContext; |
| 8 | use CirrusSearch\SearchConfig; |
| 9 | use CirrusSearch\WarningCollector; |
| 10 | use Elastica\Query\AbstractQuery; |
| 11 | use Elastica\Query\Ids; |
| 12 | use MediaWiki\Message\Message; |
| 13 | |
| 14 | /** |
| 15 | * Filter by a set of page IDs. This is useful for re-validating cached query results. |
| 16 | * Format: pageid:1|2|3 |
| 17 | */ |
| 18 | class PageIdFeature extends SimpleKeywordFeature implements FilterQueryFeature { |
| 19 | |
| 20 | /** Maximum number of IDs allowed. */ |
| 21 | public const MAX_VALUES = 1000; |
| 22 | |
| 23 | /** @inheritDoc */ |
| 24 | public function getFilterQuery( KeywordFeatureNode $node, QueryBuildingContext $context ) { |
| 25 | return $this->doGetFilterQuery( $node->getParsedValue(), $context->getSearchConfig() ); |
| 26 | } |
| 27 | |
| 28 | /** @inheritDoc */ |
| 29 | public function parseValue( |
| 30 | $key, $value, $quotedValue, $valueDelimiter, $suffix, WarningCollector $warningCollector |
| 31 | ) { |
| 32 | $values = explode( '|', $value ); |
| 33 | $validValues = array_map( 'intval', array_values( array_filter( $values, 'ctype_digit' ) ) ); |
| 34 | if ( count( $validValues ) < count( $values ) ) { |
| 35 | $invalidValues = array_values( array_diff( $values, $validValues ) ); |
| 36 | $warningCollector->addWarning( 'cirrussearch-feature-pageid-invalid-id', |
| 37 | Message::listParam( $invalidValues, 'comma' ), count( $invalidValues ) ); |
| 38 | } |
| 39 | |
| 40 | if ( count( $validValues ) > self::MAX_VALUES ) { |
| 41 | $warningCollector->addWarning( |
| 42 | 'cirrussearch-feature-too-many-conditions', |
| 43 | $key, |
| 44 | self::MAX_VALUES |
| 45 | ); |
| 46 | $validValues = array_slice( $validValues, 0, self::MAX_VALUES ); |
| 47 | } |
| 48 | |
| 49 | return [ 'pageids' => $validValues ]; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * @param array $parsedValue |
| 54 | * @param SearchConfig $searchConfig |
| 55 | * @return AbstractQuery|null |
| 56 | */ |
| 57 | protected function doGetFilterQuery( array $parsedValue, SearchConfig $searchConfig ) { |
| 58 | if ( !$parsedValue['pageids'] ) { |
| 59 | return null; |
| 60 | } |
| 61 | $documentIds = array_map( [ $searchConfig, 'makeId' ], $parsedValue['pageids'] ); |
| 62 | return new Ids( $documentIds ); |
| 63 | } |
| 64 | |
| 65 | /** @inheritDoc */ |
| 66 | protected function getKeywords() { |
| 67 | return [ 'pageid' ]; |
| 68 | } |
| 69 | |
| 70 | /** @inheritDoc */ |
| 71 | protected function doApply( SearchContext $context, $key, $value, $quotedValue, $negated ) { |
| 72 | $filter = $this->doGetFilterQuery( |
| 73 | $this->parseValue( $key, $value, $quotedValue, '', '', $context ), |
| 74 | $context->getConfig() |
| 75 | ); |
| 76 | if ( !$filter ) { |
| 77 | $context->setResultsPossible( false ); |
| 78 | } |
| 79 | return [ $filter, false ]; |
| 80 | } |
| 81 | |
| 82 | } |