Knp\DictionaryBundle\Validator\Constraints\DictionaryValidator

Complexity

Total Complexity

16

Size/Duplication

Total Lines	60
Duplicated Lines	0 %

Test Coverage

Coverage

96.43%

Importance

Changes	9
Bugs	2	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	1	1
A	validate()	0	19	5
B	varToString()	0	32	10

<?php

declare(strict_types=1);

namespace Knp\DictionaryBundle\Validator\Constraints;

use Exception;
use Knp\DictionaryBundle\Dictionary\Collection;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

final class DictionaryValidator extends ConstraintValidator
{
    public function __construct(private Collection $dictionaries) {}

    public function validate(mixed $value, Constraint $constraint): void
    {
        if (!$constraint instanceof Dictionary) {
            throw new UnexpectedTypeException($constraint, Dictionary::class);
        }

        if (null === $value || '' === $value) {
            return;
        }

        $dictionary = $this->dictionaries[$constraint->name];
        $values     = $dictionary->getKeys();

        if (!\in_array($value, $values, true)) {
            $this->context->addViolation(
                $constraint->message,
                [
                    '{{ key }}'  => $this->varToString($value),
                    '{{ keys }}' => implode(', ', array_map($this->varToString(...), $values)),
                ]
            );
        }
    }

    private function varToString(mixed $var): string
    {
        if (null === $var) {
            return 'null';
        }

        if (\is_string($var)) {
            return '"'.$var.'"';
        }

        if (\is_bool($var)) {
            return $var ? 'true' : 'false';
        }

        if (\is_float($var)) {
            return 0.0 === $var

The condition 0.0 === $var is always false.

                ? '0.0'
                : (string) $var;
        }

        if (\is_object($var) && method_exists($var, '__toString')) {
            return $var->__toString();
        }

        if (settype($var, 'string')) {
            /**
             * @var string $var
             */
            return $var;
        }

        throw new Exception('Unable to transform var to string.');
    }
}