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<?php declare(strict_types=1);
namespace Shopware\Core\Checkout\Promotion\Validator;
use Doctrine\DBAL\Connection;
use Shopware\Core\Checkout\Promotion\Aggregate\PromotionDiscount\PromotionDiscountDefinition;
use Shopware\Core\Checkout\Promotion\Aggregate\PromotionDiscount\PromotionDiscountEntity;
use Shopware\Core\Checkout\Promotion\PromotionDefinition;
use Shopware\Core\Framework\Api\Exception\ResourceNotFoundException;
use Shopware\Core\Framework\DataAbstractionLayer\Write\Command\InsertCommand;
use Shopware\Core\Framework\DataAbstractionLayer\Write\Command\UpdateCommand;
use Shopware\Core\Framework\DataAbstractionLayer\Write\Command\WriteCommand;
use Shopware\Core\Framework\DataAbstractionLayer\Write\Validation\PreWriteValidationEvent;
use Shopware\Core\Framework\Validation\WriteConstraintViolationException;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Validator\ConstraintViolation;
use Symfony\Component\Validator\ConstraintViolationInterface;
use Symfony\Component\Validator\ConstraintViolationList;
class PromotionValidator implements EventSubscriberInterface
{
/**
* this is the min value for all types
* (absolute, percentage, ...)
*/
private const DISCOUNT_MIN_VALUE = 0.00;
/**
* this is used for the maximum allowed
* percentage discount.
*/
private const DISCOUNT_PERCENTAGE_MAX_VALUE = 100.0;
/**
* @var Connection
*/
private $connection;
/**
* @var array
*/
private $databasePromotions;
/**
* @var array
*/
private $databaseDiscounts;
public function __construct(Connection $connection)
{
$this->connection = $connection;
}
public static function getSubscribedEvents(): array
{
return [
PreWriteValidationEvent::class => 'preValidate',
];
}
/**
* This function validates our incoming delta-values for promotions
* and its aggregation. It does only check for business relevant rules and logic.
* All primitive "required" constraints are done inside the definition of the entity.
*
* @throws WriteConstraintViolationException
*/
public function preValidate(PreWriteValidationEvent $event): void
{
$this->collect($event->getCommands());
$violationList = new ConstraintViolationList();
$writeCommands = $event->getCommands();
foreach ($writeCommands as $index => $command) {
if (!$command instanceof InsertCommand && !$command instanceof UpdateCommand) {
continue;
}
switch (\get_class($command->getDefinition())) {
case PromotionDefinition::class:
/** @var string $promotionId */
$promotionId = $command->getPrimaryKey()['id'];
try {
/** @var array $promotion */
$promotion = $this->getPromotionById($promotionId);
} catch (ResourceNotFoundException $ex) {
$promotion = [];
}
$this->validatePromotion(
$promotion,
$command->getPayload(),
$violationList,
$index
);
break;
case PromotionDiscountDefinition::class:
/** @var string $discountId */
$discountId = $command->getPrimaryKey()['id'];
try {
/** @var array $discount */
$discount = $this->getDiscountById($discountId);
} catch (ResourceNotFoundException $ex) {
$discount = [];
}
$this->validateDiscount(
$discount,
$command->getPayload(),
$violationList,
$index
);
break;
}
}
if ($violationList->count() > 0) {
$event->getExceptions()->add(new WriteConstraintViolationException($violationList));
}
}
/**
* This function collects all database data that might be
* required for any of the received entities and values.
*
* @throws ResourceNotFoundException
* @throws \Doctrine\DBAL\DBALException
*/
private function collect(array $writeCommands): void
{
$promotionIds = [];
$discountIds = [];
/** @var WriteCommand $command */
foreach ($writeCommands as $command) {
if (!$command instanceof InsertCommand && !$command instanceof UpdateCommand) {
continue;
}
switch (\get_class($command->getDefinition())) {
case PromotionDefinition::class:
$promotionIds[] = $command->getPrimaryKey()['id'];
break;
case PromotionDiscountDefinition::class:
$discountIds[] = $command->getPrimaryKey()['id'];
break;
}
}
// why do we have inline sql queries in here?
// because we want to avoid any other private functions that accidentally access
// the database. all private getters should only access the local in-memory list
// to avoid additional database queries.
$promotionQuery = $this->connection->executeQuery(
'SELECT * FROM `promotion` WHERE `id` IN (:ids)',
['ids' => $promotionIds],
['ids' => Connection::PARAM_STR_ARRAY]
);
$this->databasePromotions = $promotionQuery->fetchAll() ?? [];
$discountQuery = $this->connection->executeQuery(
'SELECT * FROM `promotion_discount` WHERE `id` IN (:ids)',
['ids' => $discountIds],
['ids' => Connection::PARAM_STR_ARRAY]
);
$this->databaseDiscounts = $discountQuery->fetchAll() ?? [];
}
/**
* Validates the provided Promotion data and adds
* violations to the provided list of violations, if found.
*
* @param array $promotion the current promotion from the database as array type
* @param array $payload the incoming delta-data
* @param ConstraintViolationList $violationList the list of violations that needs to be filled
* @param int $index the index of this promotion in the command queue
*
* @throws \Exception
*/
private function validatePromotion(array $promotion, array $payload, ConstraintViolationList $violationList, int $index): void
{
/** @var string|null $validFrom */
$validFrom = $this->getValue($payload, 'valid_from', $promotion);
/** @var string|null $validUntil */
$validUntil = $this->getValue($payload, 'valid_until', $promotion);
/** @var bool $useCodes */
$useCodes = $this->getValue($payload, 'use_codes', $promotion);
/** @var bool $useCodesIndividual */
$useCodesIndividual = $this->getValue($payload, 'use_individual_codes', $promotion);
/** @var string|null $pattern */
$pattern = $this->getValue($payload, 'individual_code_pattern', $promotion);
/** @var string|null $promotionId */
$promotionId = $this->getValue($payload, 'id', $promotion);
/** @var string|null $code */
$code = $this->getValue($payload, 'code', $promotion);
if ($code === null) {
$code = '';
}
if ($pattern === null) {
$pattern = '';
}
$trimmedCode = trim($code);
// if we have both a date from and until, make sure that
// the dateUntil is always in the future.
if ($validFrom !== null && $validUntil !== null) {
// now convert into real date times
// and start comparing them
$dateFrom = new \DateTime($validFrom);
$dateUntil = new \DateTime($validUntil);
if ($dateUntil < $dateFrom) {
$violationList->add($this->buildViolation(
'Expiration Date of Promotion must be after Start of Promotion',
$payload['valid_until'],
'validUntil',
'PROMOTION_VALID_UNTIL_VIOLATION',
$index
));
}
}
// check if we use global codes
if ($useCodes && !$useCodesIndividual) {
// make sure the code is not empty
if ($trimmedCode === '') {
$violationList->add($this->buildViolation(
'Please provide a valid code',
$code,
'code',
'PROMOTION_EMPTY_CODE_VIOLATION',
$index
));
}
// if our code length is greater than the trimmed one,
// this means we have leading or trailing whitespaces
if (mb_strlen($code) > mb_strlen($trimmedCode)) {
$violationList->add($this->buildViolation(
'Code may not have any leading or ending whitespaces',
$code,
'code',
'PROMOTION_CODE_WHITESPACE_VIOLATION',
$index
));
}
}
if ($pattern !== '' && $this->isCodePatternAlreadyUsed($pattern, $promotionId)) {
$violationList->add($this->buildViolation(
'Code Pattern already exists in other promotion. Please provide a different pattern.',
$pattern,
'individualCodePattern',
'PROMOTION_DUPLICATE_PATTERN_VIOLATION',
$index
));
}
// lookup global code if it does already exist in database
if ($trimmedCode !== '' && $this->isCodeAlreadyUsed($trimmedCode, $promotionId)) {
$violationList->add($this->buildViolation(
'Code already exists in other promotion. Please provide a different code.',
$trimmedCode,
'code',
'PROMOTION_DUPLICATED_CODE_VIOLATION',
$index
));
}
}
/**
* Validates the provided PromotionDiscount data and adds
* violations to the provided list of violations, if found.
*
* @param array $discount the discount as array from the database
* @param array $payload the incoming delta-data
* @param ConstraintViolationList $violationList the list of violations that needs to be filled
*/
private function validateDiscount(array $discount, array $payload, ConstraintViolationList $violationList, int $index): void
{
/** @var string $type */
$type = $this->getValue($payload, 'type', $discount);
/** @var float|null $value */
$value = $this->getValue($payload, 'value', $discount);
if ($value === null) {
return;
}
if ($value < self::DISCOUNT_MIN_VALUE) {
$violationList->add($this->buildViolation(
'Value must not be less than ' . self::DISCOUNT_MIN_VALUE,
$value,
'value',
'PROMOTION_DISCOUNT_MIN_VALUE_VIOLATION',
$index
));
}
switch ($type) {
case PromotionDiscountEntity::TYPE_PERCENTAGE:
if ($value > self::DISCOUNT_PERCENTAGE_MAX_VALUE) {
$violationList->add($this->buildViolation(
'Absolute value must not greater than ' . self::DISCOUNT_PERCENTAGE_MAX_VALUE,
$value,
'value',
'PROMOTION_DISCOUNT_MAX_VALUE_VIOLATION',
$index
));
}
break;
}
}
/**
* Gets a value from an array. It also does clean checks if
* the key is set, and also provides the option for default values.
*
* @param array $data the data array
* @param string $key the requested key in the array
* @param array $dbRow the db row of from the database
*
* @return mixed the object found in the key, or the default value
*/
private function getValue(array $data, string $key, array $dbRow)
{
// try in our actual data set
if (isset($data[$key])) {
return $data[$key];
}
// try in our db row fallback
if (isset($dbRow[$key])) {
return $dbRow[$key];
}
// use default
return null;
}
/**
* @throws ResourceNotFoundException
*
* @return array|mixed
*/
private function getPromotionById(string $id)
{
/** @var array $promotion */
foreach ($this->databasePromotions as $promotion) {
if ($promotion['id'] === $id) {
return $promotion;
}
}
throw new ResourceNotFoundException('promotion', [$id]);
}
/**
* @throws ResourceNotFoundException
*
* @return array|mixed
*/
private function getDiscountById(string $id)
{
/** @var array $discount */
foreach ($this->databaseDiscounts as $discount) {
if ($discount['id'] === $id) {
return $discount;
}
}
throw new ResourceNotFoundException('promotion_discount', [$id]);
}
/**
* This helper function builds an easy violation
* object for our validator.
*
* @param string $message the error message
* @param mixed $invalidValue the actual invalid value
* @param string $propertyPath the property path from the root value to the invalid value without initial slash
* @param string $code the error code of the violation
* @param int $index the position of this entity in the command queue
*
* @return ConstraintViolationInterface the built constraint violation
*/
private function buildViolation(string $message, $invalidValue, string $propertyPath, string $code, int $index): ConstraintViolationInterface
{
$formattedPath = "/{$index}/{$propertyPath}";
return new ConstraintViolation(
$message,
'',
[
'value' => $invalidValue,
],
$invalidValue,
$formattedPath,
$invalidValue,
null,
$code
);
}
/**
* True, if the provided pattern is already used in another promotion.
*/
private function isCodePatternAlreadyUsed(string $pattern, ?string $promotionId): bool
{
$qb = $this->connection->createQueryBuilder();
$query = $qb
->select('id')
->from('promotion')
->where($qb->expr()->eq('individual_code_pattern', ':pattern'))
->setParameter(':pattern', $pattern);
$promotions = $query->execute()->fetchAll();
/** @var array $p */
foreach ($promotions as $p) {
// if we have a promotion id to verify
// and a promotion with another id exists, then return that is used
if ($promotionId !== null && $p['id'] !== $promotionId) {
return true;
}
}
return false;
}
/**
* True, if the provided code is already used as global
* or individual code in another promotion.
*/
private function isCodeAlreadyUsed(string $code, ?string $promotionId): bool
{
$qb = $this->connection->createQueryBuilder();
// check if individual code.
// if we dont have a promotion Id only
// check if its existing somewhere,
// if we have an Id, verify if it's existing in another promotion
$query = $qb
->select('id')
->from('promotion_individual_code')
->where($qb->expr()->eq('code', ':code'))
->setParameter(':code', $code);
if ($promotionId !== null) {
$query->andWhere($qb->expr()->neq('promotion_id', ':promotion_id'))
->setParameter(':promotion_id', $promotionId);
}
$existingIndividual = \count($query->execute()->fetchAll()) > 0;
if ($existingIndividual) {
return true;
}
$qb = $this->connection->createQueryBuilder();
// check if it is a global promotion code.
// again with either an existing promotion Id
// or without one.
$query
= $qb->select('id')
->from('promotion')
->where($qb->expr()->eq('code', ':code'))
->setParameter(':code', $code);
if ($promotionId !== null) {
$query->andWhere($qb->expr()->neq('id', ':id'))
->setParameter(':id', $promotionId);
}
return \count($query->execute()->fetchAll()) > 0;
}
}

vendor/shopware/platform/src/Core/Checkout/Promotion/Validator/PromotionValidator.php line 68