Created
April 20, 2015 14:03
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<?php | |
namespace ExampleSiteBundle\Twig\Loader; | |
use Symfony\Component\Config\FileLocatorInterface; | |
use Symfony\Component\Templating\TemplateNameParserInterface; | |
use Symfony\Component\Templating\TemplateReferenceInterface; | |
use Liip\ThemeBundle\ActiveTheme; | |
class FilesystemLoader extends \Twig_Loader_Filesystem | |
{ | |
protected $locator; | |
protected $parser; | |
/** | |
* @var ActiveTheme|null | |
*/ | |
protected $activeTheme; | |
/** | |
* Constructor. | |
* | |
* @param FileLocatorInterface $locator A FileLocatorInterface instance | |
* @param TemplateNameParserInterface $parser A TemplateNameParserInterface instance | |
* @param ActiveTheme $activeTheme | |
*/ | |
public function __construct(FileLocatorInterface $locator, TemplateNameParserInterface $parser, ActiveTheme $activeTheme = null) | |
{ | |
parent::__construct(array()); | |
$this->locator = $locator; | |
$this->parser = $parser; | |
$this->activeTheme = $activeTheme; | |
} | |
/** | |
* Returns the path to the template file. | |
* | |
* The file locator is used to locate the template when the naming convention | |
* is the symfony one (i.e. the name can be parsed). | |
* Otherwise the template is located using the locator from the twig library. | |
* | |
* @param string|TemplateReferenceInterface $template The template | |
* | |
* @return string The path to the template file | |
* | |
* @throws \Twig_Error_Loader if the template could not be found | |
*/ | |
protected function findTemplate($template) | |
{ | |
$logicalName = (string) $template; | |
if ($this->activeTheme) { | |
$logicalName .= '|' . $this->activeTheme->getName(); | |
} | |
if (isset($this->cache[$logicalName])) { | |
return $this->cache[$logicalName]; | |
} | |
$file = null; | |
$previous = null; | |
try { | |
$file = parent::findTemplate((string) $template); | |
} catch (\Twig_Error_Loader $e) { | |
$previous = $e; | |
// for BC | |
try { | |
$template = $this->parser->parse($template); | |
$file = $this->locator->locate($template); | |
} catch (\Exception $e) { | |
$previous = $e; | |
} | |
} | |
if (false === $file || null === $file) { | |
throw new \Twig_Error_Loader(sprintf('Unable to find template "%s".', $logicalName), -1, null, $previous); | |
} | |
return $this->cache[$logicalName] = $file; | |
} | |
} |
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