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| 1 | <?php |
| 2 | |
| 3 | namespace GeoData\Search; |
| 4 | |
| 5 | use CirrusSearch\Search\Rescore\FunctionScoreBuilder; |
| 6 | use CirrusSearch\SearchConfig; |
| 7 | use Elastica\Query\FunctionScore; |
| 8 | use GeoData\Coord; |
| 9 | |
| 10 | /** |
| 11 | * Builds a boost for documents based on geocoordinates. |
| 12 | * Initialized by special syntax in user query. |
| 13 | * @see CirrusGeoFeature |
| 14 | */ |
| 15 | class GeoRadiusFunctionScoreBuilder extends FunctionScoreBuilder { |
| 16 | /** |
| 17 | * Default feature weight |
| 18 | */ |
| 19 | private const DEFAULT_WEIGHT = 2; |
| 20 | private Coord $coord; |
| 21 | /** |
| 22 | * @var int |
| 23 | */ |
| 24 | private $radius; |
| 25 | |
| 26 | /** |
| 27 | * @param SearchConfig $config |
| 28 | * @param float $weight Used to amend profile weight, e.g. negative boosting |
| 29 | * @param Coord $coord Center coordinate |
| 30 | * @param int $radius |
| 31 | */ |
| 32 | public function __construct( SearchConfig $config, $weight, Coord $coord, $radius ) { |
| 33 | $weightProfile = $config->get( 'GeoDataRadiusScoreOverrides' ); |
| 34 | $weightProfile['value'] = self::DEFAULT_WEIGHT; |
| 35 | // Overrides will be applied to weight in parent ctor |
| 36 | parent::__construct( $config, $weightProfile ); |
| 37 | $this->weight *= $weight; |
| 38 | $this->coord = $coord; |
| 39 | $this->radius = $radius; |
| 40 | } |
| 41 | |
| 42 | public function append( FunctionScore $functionScore ) { |
| 43 | $functionScore->addWeightFunction( $this->weight, |
| 44 | CirrusNearTitleFilterFeature::createQuery( $this->coord, $this->radius ) ); |
| 45 | } |
| 46 | } |