Yiisoft\Validator\DataSet\AttributeDataSet

Complexity

Total Complexity

7

Size/Duplication

Total Lines	33
Duplicated Lines	0 %

Test Coverage

Coverage

93.33%

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	3
A	getRules()	0	5	1
A	collectAttributes()	0	11	3

<?php

declare(strict_types=1);

namespace Yiisoft\Validator\DataSet;

use ReflectionAttribute;
use ReflectionClass;
use Yiisoft\Validator\DataSetInterface;
use Yiisoft\Validator\RuleInterface;
use Yiisoft\Validator\RulesProviderInterface;

/**
 * This data set makes use of attributes introduced in PHP 8. It simplifies rules configuration process, especially for
 * nested data and relations. Please refer to the guide for example.
 *
 * @link https://www.php.net/manual/en/language.attributes.overview.php
 */
final class AttributeDataSet implements RulesProviderInterface, DataSetInterface
{
    use ArrayDataTrait;

    private object $baseAnnotatedObject;

    public function __construct(object $baseAnnotatedObject, array $data = [])
    {
        $this->baseAnnotatedObject = $baseAnnotatedObject;
        $this->data = ($data === [] && is_subclass_of($baseAnnotatedObject, DataSetInterface::class))
            ? $baseAnnotatedObject->getData()
            : $data;
    }

    public function getRules(): iterable
    {
        $classMeta = new ReflectionClass($this->baseAnnotatedObject);

        return $this->collectAttributes($classMeta);
    }

    // TODO: use Generator to collect attributes
    private function collectAttributes(ReflectionClass $classMeta): array
    {
        $rules = [];
        foreach ($classMeta->getProperties() as $property) {
            $attributes = $property->getAttributes(RuleInterface::class, ReflectionAttribute::IS_INSTANCEOF);
            foreach ($attributes as $attribute) {
                $rules[$property->getName()][] = $attribute->newInstance();
            }
        }

        return $rules;
    }
}