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<?php |
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/* |
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* This file is part of the Pagerfanta package. |
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* |
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* (c) Pablo Díez <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace WhiteOctober\PagerfantaBundle\Twig; |
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use Pagerfanta\PagerfantaInterface; |
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use Pagerfanta\View\ViewFactory; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\RequestStack; |
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use Symfony\Component\PropertyAccess\PropertyAccess; |
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use Symfony\Component\PropertyAccess\PropertyPath; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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use Twig\Extension\AbstractExtension; |
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use Twig\TwigFunction; |
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/** |
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* PagerfantaExtension. |
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* |
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* @author Pablo Díez <[email protected]> |
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*/ |
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class PagerfantaExtension extends AbstractExtension |
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{ |
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private $defaultView; |
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private $viewFactory; |
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private $router; |
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private $requestStack; |
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private $request; |
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public function __construct($defaultView, ViewFactory $viewFactory, UrlGeneratorInterface $router, RequestStack $requestStack = null) |
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{ |
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$this->defaultView = $defaultView; |
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$this->viewFactory = $viewFactory; |
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$this->router = $router; |
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$this->requestStack = $requestStack; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getFunctions() |
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{ |
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return array( |
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new TwigFunction('pagerfanta', array($this, 'renderPagerfanta'), array('is_safe' => array('html'))), |
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new TwigFunction('pagerfanta_page_url', array($this, 'getPageUrl')), |
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); |
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} |
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/** |
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* Renders a pagerfanta. |
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* |
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* @param PagerfantaInterface $pagerfanta The pagerfanta. |
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* @param string|array $viewName The view name. |
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* @param array $options An array of options (optional). |
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* |
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* @return string The pagerfanta rendered. |
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*/ |
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public function renderPagerfanta(PagerfantaInterface $pagerfanta, $viewName = null, array $options = array()) |
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{ |
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if (is_array($viewName)) { |
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list($viewName, $options) = array(null, $viewName); |
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} |
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$viewName = $viewName ?: $this->defaultView; |
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$routeGenerator = $this->createRouteGenerator($options); |
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return $this->viewFactory->get($viewName)->render($pagerfanta, $routeGenerator, $options); |
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} |
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/** |
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* Generates the url for a given page in a pagerfanta instance. |
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* |
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* @param \Pagerfanta\PagerfantaInterface $pagerfanta |
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* @param $page |
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* @param array $options |
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* |
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* @return string The url of the given page |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function getPageUrl(PagerfantaInterface $pagerfanta, $page, array $options = array()) |
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{ |
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if ($page < 0 || $page > $pagerfanta->getNbPages()) { |
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throw new \InvalidArgumentException("Page '{$page}' is out of bounds"); |
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} |
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$routeGenerator = $this->createRouteGenerator($options); |
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return $routeGenerator($page); |
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} |
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/** |
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* Creates an anonymous function which returns the URL for a given page. |
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* |
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* @param array $options |
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* |
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* @return callable |
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* |
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* @throws \Exception |
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*/ |
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private function createRouteGenerator($options = array()) |
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{ |
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$options = array_replace(array( |
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'routeName' => null, |
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'routeParams' => array(), |
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'pageParameter' => '[page]', |
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'omitFirstPage' => false |
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), $options); |
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$router = $this->router; |
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if (null === $options['routeName']) { |
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$request = $this->getRequest(); |
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$options['routeName'] = $request->attributes->get('_route'); |
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if ('_internal' === $options['routeName']) { |
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throw new \Exception('PagerfantaBundle can not guess the route when used in a subrequest'); |
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} |
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// make sure we read the route parameters from the passed option array |
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$defaultRouteParams = array_merge($request->query->all(), $request->attributes->get('_route_params', array())); |
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if (array_key_exists('routeParams', $options)) { |
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$options['routeParams'] = array_merge($defaultRouteParams, $options['routeParams']); |
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} else { |
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$options['routeParams'] = $defaultRouteParams; |
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} |
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} |
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$routeName = $options['routeName']; |
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$routeParams = $options['routeParams']; |
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$pagePropertyPath = new PropertyPath($options['pageParameter']); |
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$omitFirstPage = $options['omitFirstPage']; |
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return function($page) use($router, $routeName, $routeParams, $pagePropertyPath, $omitFirstPage) { |
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$propertyAccessor = PropertyAccess::createPropertyAccessor(); |
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if($omitFirstPage){ |
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$propertyAccessor->setValue($routeParams, $pagePropertyPath, $page > 1 ? $page : null); |
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} else { |
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$propertyAccessor->setValue($routeParams, $pagePropertyPath, $page); |
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} |
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return $router->generate($routeName, $routeParams); |
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}; |
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} |
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public function setRequest(Request $request = null) |
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{ |
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$this->request = $request; |
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} |
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/** |
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* @return Request|null |
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*/ |
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private function getRequest() |
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{ |
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if ($this->requestStack && $request = $this->requestStack->getCurrentRequest()) { |
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return $request; |
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} |
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return $this->request; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getName() |
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{ |
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return 'pagerfanta'; |
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} |
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} |
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whiteoctober /
WhiteOctoberPagerfantaBundle
