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| 1 | <?php |
| 2 | |
| 3 | namespace GeoData\Search; |
| 4 | |
| 5 | use CirrusSearch\Parser\AST\KeywordFeatureNode; |
| 6 | use CirrusSearch\Query\BoostFunctionFeature; |
| 7 | use CirrusSearch\Query\Builder\QueryBuildingContext; |
| 8 | use CirrusSearch\Query\SimpleKeywordFeature; |
| 9 | use CirrusSearch\Search\Rescore\BoostFunctionBuilder; |
| 10 | use CirrusSearch\Search\SearchContext; |
| 11 | use CirrusSearch\SearchConfig; |
| 12 | use CirrusSearch\WarningCollector; |
| 13 | use GeoData\Coord; |
| 14 | |
| 15 | /** |
| 16 | * Applies geo boosting to the query by providing a Title. |
| 17 | * |
| 18 | * it increases the score of results within the geographic area. All values can be prefixed |
| 19 | * with a radius in m or km to apply. If not specified this defaults to 5km. |
| 20 | * |
| 21 | * Examples: |
| 22 | * boost-neartitle:"San Francisco" |
| 23 | * boost-neartitle:50km,Kampala |
| 24 | */ |
| 25 | class CirrusNearTitleBoostFeature extends SimpleKeywordFeature implements BoostFunctionFeature { |
| 26 | use CirrusGeoFeature; |
| 27 | |
| 28 | /** @inheritDoc */ |
| 29 | protected function getKeywords() { |
| 30 | return [ 'boost-neartitle' ]; |
| 31 | } |
| 32 | |
| 33 | /** @inheritDoc */ |
| 34 | protected function doApply( SearchContext $context, $key, $value, $quotedValue, $negated ) { |
| 35 | [ $coord, $radius ] = $this->parseGeoNearbyTitle( $context, $key, $value ); |
| 36 | if ( $coord ) { |
| 37 | $context->addCustomRescoreComponent( |
| 38 | new GeoRadiusFunctionScoreBuilder( $context->getConfig(), $negated ? 0.1 : 1, $coord, $radius ) |
| 39 | ); |
| 40 | } |
| 41 | |
| 42 | return [ null, false ]; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * @param KeywordFeatureNode $node |
| 47 | * @param SearchConfig $config |
| 48 | * @param WarningCollector $warningCollector |
| 49 | * @return array{?Coord,int,int|string} |
| 50 | */ |
| 51 | public function expand( |
| 52 | KeywordFeatureNode $node, |
| 53 | SearchConfig $config, |
| 54 | WarningCollector $warningCollector |
| 55 | ) { |
| 56 | return $this->parseGeoNearbyTitle( $warningCollector, $node->getKey(), $node->getValue() ); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * @param KeywordFeatureNode $node |
| 61 | * @param QueryBuildingContext $context |
| 62 | * @return BoostFunctionBuilder|null |
| 63 | */ |
| 64 | public function getBoostFunctionBuilder( |
| 65 | KeywordFeatureNode $node, |
| 66 | QueryBuildingContext $context |
| 67 | ) { |
| 68 | [ $coord, $radius ] = $context->getKeywordExpandedData( $node ); |
| 69 | if ( $coord !== null ) { |
| 70 | return new GeoRadiusFunctionScoreBuilder( $context->getSearchConfig(), 1, |
| 71 | $coord, $radius ); |
| 72 | } |
| 73 | return null; |
| 74 | } |
| 75 | } |