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<?php
declare(strict_types=1);
namespace ReadModel\Walker;
use ReadModel\InvalidArgumentException;
class ScalarTransformerWalker implements ResultWalker
{
/** @var array */
private $typeMapping;
/**
* @param array $typeMapping e.g: ['id' => 'int', 'active' => 'bool']
*/
public function __construct(array $typeMapping)
$this->typeMapping = $typeMapping;
}
public function walk(array $result): array
array_walk($result, function (&$value, $key) {
if ($value === null || !isset($this->typeMapping[$key])) {
return;
$value = $this->transform($value, $this->typeMapping[$key]);
});
return $result;
private function transform($value, $type)
$type = strtolower($type);
$type = 'boolean' === $type ? 'bool' : $type;
$function = $type.'val';
if (function_exists($function)) {
return $function($value);
throw InvalidArgumentException::invalidType($type, $function);
tomaszhanc /
cqrs-lite-read-model
