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<?php declare(strict_types=1);
namespace Shopware\Core\Content\Cms\Subscriber;
use Doctrine\DBAL\Connection;
use Shopware\Core\Content\Category\CategoryDefinition;
use Shopware\Core\Content\Cms\CmsException;
use Shopware\Core\Content\Cms\CmsPageDefinition;
use Shopware\Core\Content\Cms\Exception\PageNotFoundException;
use Shopware\Core\Content\Product\ProductDefinition;
use Shopware\Core\Defaults;
use Shopware\Core\Framework\DataAbstractionLayer\Event\BeforeDeleteEvent;
use Shopware\Core\Framework\Log\Package;
use Shopware\Core\Framework\Uuid\Uuid;
use Shopware\Core\System\SystemConfig\Event\BeforeSystemConfigChangedEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* @deprecated tag:v6.5.0 - reason:becomes-internal - EventSubscribers will become internal in v6.5.0
*/
#[Package('content')]
class CmsPageDefaultChangeSubscriber implements EventSubscriberInterface
{
/**
* @var array<string>
*/
public static array $defaultCmsPageConfigKeys = [
ProductDefinition::CONFIG_KEY_DEFAULT_CMS_PAGE_PRODUCT,
CategoryDefinition::CONFIG_KEY_DEFAULT_CMS_PAGE_CATEGORY,
];
private Connection $connection;
/**
* @internal
*/
public function __construct(
Connection $connection
) {
$this->connection = $connection;
}
public static function getSubscribedEvents(): array
{
return [
BeforeSystemConfigChangedEvent::class => 'validateChangeOfDefaultCmsPage',
BeforeDeleteEvent::class => 'beforeDeletion',
];
}
/**
* @throws CmsException
* @throws \JsonException
*/
public function beforeDeletion(BeforeDeleteEvent $event): void
{
$cmsPageIds = $event->getIds(CmsPageDefinition::ENTITY_NAME);
// no cms page is affected by this deletion event
if (empty($cmsPageIds)) {
return;
}
$defaultPages = $this->cmsPageIsDefault($cmsPageIds);
// count !== 0 indicates that there are some cms pages which would be deleted but are currently a default
if (\count($defaultPages) !== 0) {
throw CmsException::deletionOfDefault($defaultPages);
}
}
/**
* @throws CmsException
* @throws PageNotFoundException
*/
public function validateChangeOfDefaultCmsPage(BeforeSystemConfigChangedEvent $event): void
{
$newDefaultCmsPageId = $event->getValue();
$systemConfigKey = $event->getKey();
$salesChannelId = $event->getSalesChannelId();
if (!\in_array($systemConfigKey, self::$defaultCmsPageConfigKeys, true)) {
return;
}
// prevent deleting the overall default (salesChannelId === null)
// a sales channel specific default can still be deleted (salesChannelId !== null)
if ($newDefaultCmsPageId === null && $salesChannelId === null) {
$oldCmsPageId = $this->getCurrentOverallDefaultCmsPageId($systemConfigKey);
throw CmsException::overallDefaultSystemConfigDeletion($oldCmsPageId);
}
if (!\is_string($newDefaultCmsPageId) && $newDefaultCmsPageId !== null) {
throw new PageNotFoundException('invalid page');
}
// prevent changing the default to an invalid cms page id
if (\is_string($newDefaultCmsPageId) && !$this->cmsPageExists($newDefaultCmsPageId)) {
throw new PageNotFoundException($newDefaultCmsPageId);
}
}
private function getCurrentOverallDefaultCmsPageId(string $systemConfigKey): string
{
$result = $this->connection->fetchOne(
'SELECT configuration_value FROM system_config WHERE configuration_key = :configKey AND sales_channel_id is NULL;',
[
'configKey' => $systemConfigKey,
]
);
$config = json_decode($result, true);
return $config['_value'];
}
/**
* @param array<string> $cmsPageIds
*
* @return array<string>
*/
private function cmsPageIsDefault(array $cmsPageIds): array
{
$configurations = $this->connection->fetchAllAssociative(
'SELECT DISTINCT configuration_value FROM system_config WHERE configuration_key IN (:configKeys);',
[
'configKeys' => self::$defaultCmsPageConfigKeys,
],
[
'configKeys' => Connection::PARAM_STR_ARRAY,
]
);
$defaultIds = [];
foreach ($configurations as $configuration) {
$configValue = $configuration['configuration_value'];
$config = json_decode($configValue, true);
$defaultIds[] = $config['_value'];
}
// returns from all provided cms pages the ones which are default
return array_intersect($cmsPageIds, $defaultIds);
}
private function cmsPageExists(string $cmsPageId): bool
{
$count = $this->connection->fetchOne(
'SELECT count(*) FROM cms_page WHERE id = :cmsPageId AND version_id = :versionId LIMIT 1;',
[
'cmsPageId' => Uuid::fromHexToBytes($cmsPageId),
'versionId' => Uuid::fromHexToBytes(Defaults::LIVE_VERSION),
]
);
return $count === '1';
}
}

vendor/shopware/core/Content/Cms/Subscriber/CmsPageDefaultChangeSubscriber.php line 55