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<?php |
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declare(strict_types=1); |
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namespace Alpha\TwigBundle\Loader; |
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use Doctrine\DBAL\Exception\TableNotFoundException; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Doctrine\ORM\NoResultException; |
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use Twig\Error\LoaderError; |
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use Twig\Loader\LoaderInterface; |
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use Twig\Source; |
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class DatabaseTwigLoader implements LoaderInterface |
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{ |
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protected $entityManager; |
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protected $entity; |
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public function __construct(EntityManagerInterface $entityManager, string $entity) |
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{ |
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$this->entityManager = $entityManager; |
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$this->entity = $entity; |
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} |
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public function getCacheKey($name): string |
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{ |
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return $name; |
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} |
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public function exists($templateName): bool |
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{ |
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try { |
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$template = $this->getTemplate($templateName); |
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return $template instanceof $this->entity; |
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} catch (NoResultException | TableNotFoundException $exception) { |
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return false; |
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} |
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} |
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private function getTemplate(string $templateName): object |
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{ |
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return $this->entityManager |
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->getRepository($this->entity) |
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->createQueryBuilder('t') |
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->select('t') |
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->where('t.name = :name') |
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->setMaxResults(1) |
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->getQuery() |
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->setParameter('name', $templateName) |
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->getSingleResult(); |
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} |
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public function getSourceContext($templateName): Source |
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{ |
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$templateSource = $this->getValue('source', $templateName); |
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if (!is_string($templateSource) || mb_strlen($templateSource) < 1) { |
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throw new LoaderError(sprintf('Template "%s" does not exist.', $templateName)); |
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} |
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return new Source($templateSource, $templateName); |
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} |
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public function isFresh($templateName, $time): bool |
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{ |
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try { |
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$lastModified = $this->getValue('lastModified', $templateName); |
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if (null === $lastModified) { |
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return false; |
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} |
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return strtotime($lastModified) <= $time; |
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} catch (NoResultException $exception) { |
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return false; |
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} |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getValue(string $column, string $templateName) |
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{ |
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return $this->entityManager |
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->getRepository($this->entity) |
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->createQueryBuilder('t') |
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->select(sprintf('t.%s', $column)) |
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->where('t.name = :name') |
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->setMaxResults(1) |
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->getQuery() |
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->setParameter('name', $templateName) |
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->getSingleScalarResult(); |
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} |
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} |
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Lendable /
TwigBundle
