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| <?php | |
| namespace CirrusSearch\Search\Rescore; | |
| use CirrusSearch\SearchConfig; | |
| use Elastica\Query\FunctionScore; | |
| /** | |
| * Builds a function using a custom numeric field and | |
| * parameters attached to a profile. | |
| * Uses the function field_value_factor | |
| */ | |
| class CustomFieldFunctionScoreBuilder extends FunctionScoreBuilder { | |
| /** | |
| * @var array the field_value_factor profile | |
| */ | |
| private $profile; | |
| /** | |
| * @param SearchConfig $config | |
| * @param float $weight | |
| * @param array $profile | |
| */ | |
| public function __construct( SearchConfig $config, $weight, $profile ) { | |
| parent::__construct( $config, $weight ); | |
| if ( isset( $profile['factor'] ) ) { | |
| $profile['factor'] = $this->getOverriddenFactor( $profile['factor'] ); | |
| } | |
| $this->profile = $profile; | |
| } | |
| public function append( FunctionScore $functionScore ) { | |
| if ( isset( $this->profile['factor'] ) && $this->profile['factor'] === 0.0 ) { | |
| // If factor is 0 this function score will have no impact. | |
| return; | |
| } | |
| $functionScore->addFunction( 'field_value_factor', $this->profile, null, $this->weight ); | |
| } | |
| } |