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RankFeature.php
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54 lines (43 loc) · 1.13 KB
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<?php
declare(strict_types = 1);
namespace Spameri\ElasticQuery\Query;
/**
* @see https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-rank-feature-query.html
*/
class RankFeature implements \Spameri\ElasticQuery\Query\LeafQueryInterface
{
/**
* @param array<string, mixed>|null $function Optional scoring function:
* ['saturation' => ['pivot' => 8]] | ['log' => ['scaling_factor' => 4]]
* | ['sigmoid' => ['pivot' => 7, 'exponent' => 0.6]] | ['linear' => new \stdClass()].
*/
public function __construct(
private string $field,
private array|null $function = null,
private float $boost = 1.0,
)
{
}
public function key(): string
{
return 'rank_feature_' . $this->field;
}
/**
* @return array<string, array<string, mixed>>
*/
public function toArray(): array
{
$body = [
'field' => $this->field,
'boost' => $this->boost,
];
if ($this->function !== null) {
foreach ($this->function as $name => $config) {
$body[$name] = $config;
}
}
return [
'rank_feature' => $body,
];
}
}