Sylius\Bundle\PromotionBundle\Validator\CouponGenerationAmountValidator::validate PHP Метод

    public function validate($instruction, Constraint $constraint)
    {
        if (null === $instruction->getCodeLength() || null === $instruction->getAmount()) {
            return;
        }
        /** @var PromotionCouponGeneratorInstructionInterface $value */
        Assert::isInstanceOf($instruction, PromotionCouponGeneratorInstructionInterface::class);
        /** @var CouponPossibleGenerationAmount $constraint */
        Assert::isInstanceOf($constraint, CouponPossibleGenerationAmount::class);
        if (!$this->generationPolicy->isGenerationPossible($instruction)) {
            $this->context->addViolation($constraint->message, array('%expectedAmount%' => $instruction->getAmount(), '%codeLength%' => $instruction->getCodeLength(), '%possibleAmount%' => $this->generationPolicy->getPossibleGenerationAmount($instruction)));
        }
    }