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<?php
declare(strict_types=1);
namespace ReadModel;
abstract class Paginator
{
/** @var int */
protected $limit;
protected $offset;
/** @var array */
protected $meta = [];
public function __construct(?int $limit, int $offset)
$this->limit = $limit;
$this->offset = $offset;
}
/**
* @param string $name
* @param mixed $value also a callable which will be resolved when meta data would be needed; see resolveMeta()
*/
public function addMeta(string $name, $value): void
$this->meta[$name] = $value;
public function getResults(): array
return $this->findAll();
public function getMeta(): array
return array_merge([
'limit' => $this->limit,
'offset' => $this->offset,
'total' => $this->getTotal()
], $this->resolveMeta());
private function resolveMeta(): array
return array_map(function ($value) {
// execute callables
if (is_callable($value)) {
$value = call_user_func($value);
return $value;
}, $this->meta);
abstract protected function findAll(): array;
abstract protected function getTotal(): int;
tomaszhanc /
cqrs-lite-read-model
