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<?php
namespace Daikon\Entity\Entity;
use Daikon\Entity\EntityType\AttributeInterface;
use Daikon\Entity\Exception\UnexpectedType;
final class EntityDiff
{
public function __invoke(EntityInterface $leftEntity, EntityInterface $rightEntity): ValueObjectMap
$this->assertComparabiliy($leftEntity, $rightEntity);
return $this->generateDiff($leftEntity, $rightEntity);
}
private function assertComparabiliy(EntityInterface $leftEntity, EntityInterface $rightEntity)
if ($leftEntity->getEntityType() !== $rightEntity->getEntityType()) {
throw new UnexpectedType('Comparing entities of different types is not supported.');
private function generateDiff(EntityInterface $leftEntity, EntityInterface $rightEntity): ValueObjectMap
return ValueObjectMap::forEntity($leftEntity, array_reduce(
$leftEntity->getEntityType()->getAttributes()->toArray(),
function (array $diff, AttributeInterface $attribute) use ($leftEntity, $rightEntity): array {
$attrName = $attribute->getName();
if ($rightEntity->has($attrName) && $leftEntity->has($attrName)) {
if (!$leftEntity->get($attrName)->equals($rightEntity->get($attrName))) {
$diff[$attrName] = $leftEntity->get($attrName);
} elseif ($leftEntity->has($attrName)) {
return $diff;
},
[]
));
daikon-cqrs /
entity
