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<?php |
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namespace Boekkooi\Bundle\TwigJackBundle\Twig\Loader; |
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use Boekkooi\Bundle\TwigJackBundle\Model\TemplateInterface; |
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use Boekkooi\Bundle\TwigJackBundle\Model\TranslatableTemplateInterface; |
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use Doctrine\Common\Persistence\ObjectRepository; |
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/** |
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* @author Warnar Boekkooi <[email protected]> |
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*/ |
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class DoctrineLoader implements \Twig_LoaderInterface |
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{ |
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const KEY_SEPARATOR = '|'; |
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/** |
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* @var string |
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*/ |
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protected $prefix; |
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/** |
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* @var ObjectRepository |
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*/ |
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protected $repository; |
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/** |
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* @var callable|null |
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*/ |
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protected $localeCallable; |
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/** |
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* Constructor |
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* |
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* @param ObjectRepository $repository The template repository |
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* @param string $prefix The template prefix to identify database templates |
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* @param callable|null $localeCallable |
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*/ |
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public function __construct(ObjectRepository $repository, $prefix = 'database::', $localeCallable = null) |
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{ |
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if ($localeCallable !== null && !is_callable($localeCallable)) { |
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throw new \InvalidArgumentException('Given `localeCallable` must be a callable or NULL.'); |
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} |
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$this->repository = $repository; |
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$this->prefix = $prefix; |
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$this->localeCallable = $localeCallable; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getSource($name) |
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{ |
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return $this->findTemplate($name)->getTemplate(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function exists($name) |
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{ |
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if ($this->isLoadableTemplate($name)) { |
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$templateIdentifier = substr($name, strlen($this->prefix)); |
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$template = $this->repository->find($templateIdentifier); |
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return $template !== null && $template instanceof TemplateInterface; |
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} |
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return false; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getCacheKey($name) |
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{ |
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$template = $this->findTemplate($name); |
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if ($template instanceof TranslatableTemplateInterface) { |
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/** @var TranslatableTemplateInterface $template */ |
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return $this->prefix . self::KEY_SEPARATOR . $template->getCurrentLocale() . self::KEY_SEPARATOR . $template->getIdentifier(); |
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} |
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return $this->prefix . self::KEY_SEPARATOR . $template->getIdentifier(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function isFresh($name, $time) |
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{ |
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return $this->findTemplate($name)->getLastModified()->getTimestamp() <= $time; |
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} |
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/** |
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* Check if the given name has the correct prefix for loading. |
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* |
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* @param string $name The name of the template to check |
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* @return bool |
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*/ |
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protected function isLoadableTemplate($name) |
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{ |
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return !empty($name) && (empty($this->prefix) || strlen($name) > strlen($this->prefix) && strpos($name, $this->prefix) === 0); |
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} |
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/** |
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* Find a template by it's name |
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* |
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* @param string $name The name of the template to find |
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* @return TemplateInterface |
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* @throws \Twig_Error_Loader |
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*/ |
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protected function findTemplate($name) |
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{ |
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if (!$this->isLoadableTemplate($name)) { |
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throw new \Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "%stemplate_name").', $name, $this->prefix)); |
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} |
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$templateIdentifier = substr($name, strlen($this->prefix)); |
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$template = $this->repository->find($templateIdentifier); |
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if ($template === null) { |
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throw new \Twig_Error_Loader(sprintf('Unable to find template "%s".', $name)); |
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} |
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if (!($template instanceof TemplateInterface)) { |
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throw new \Twig_Error_Loader(sprintf('Unexpected template type "%s" found for template "%s".', get_class($template), $name)); |
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} |
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if ($template instanceof TranslatableTemplateInterface) { |
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/** @var TranslatableTemplateInterface $template */ |
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$locale = $this->getCurrentLocale(); |
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$template->setCurrentLocale($locale); |
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} |
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return $template; |
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} |
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protected function getCurrentLocale() |
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{ |
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if ($currentLocaleCallable = $this->localeCallable) { |
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$locale = call_user_func($currentLocaleCallable); |
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if ($locale) { |
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return $locale; |
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} |
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1 |
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} |
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return 'en'; |
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} |
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} |
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boekkooi /
TwigJackBundle
