CountValidator.php

<?php


/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;

/**
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
class CountValidator extends ConstraintValidator {
    public function validate(mixed $value, Constraint $constraint) : void {
        if (!$constraint instanceof Count) {
            throw new UnexpectedTypeException($constraint, Count::class);
        }
        if (null === $value) {
            return;
        }
        if (!\is_array($value) && !$value instanceof \Countable) {
            throw new UnexpectedValueException($value, 'array|\\Countable');
        }
        $count = \count($value);
        if (null !== $constraint->max && $count > $constraint->max) {
            $exactlyOptionEnabled = $constraint->min == $constraint->max;
            $this->context
                ->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->maxMessage)
                ->setParameter('{{ count }}', $count)
                ->setParameter('{{ limit }}', $constraint->max)
                ->setInvalidValue($value)
                ->setPlural($constraint->max)
                ->setCode($exactlyOptionEnabled ? Count::NOT_EQUAL_COUNT_ERROR : Count::TOO_MANY_ERROR)
                ->addViolation();
            return;
        }
        if (null !== $constraint->min && $count < $constraint->min) {
            $exactlyOptionEnabled = $constraint->min == $constraint->max;
            $this->context
                ->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->minMessage)
                ->setParameter('{{ count }}', $count)
                ->setParameter('{{ limit }}', $constraint->min)
                ->setInvalidValue($value)
                ->setPlural($constraint->min)
                ->setCode($exactlyOptionEnabled ? Count::NOT_EQUAL_COUNT_ERROR : Count::TOO_FEW_ERROR)
                ->addViolation();
            return;
        }
        if (null !== $constraint->divisibleBy) {
            $this->context
                ->getValidator()
                ->inContext($this->context)
                ->validate($count, [
                new DivisibleBy([
                    'value' => $constraint->divisibleBy,
                    'message' => $constraint->divisibleByMessage,
                ]),
            ], $this->context
                ->getGroup());
        }
    }

}