LcShopBundle/ShopBundle/Twig/FrontendTwigExtension.php

<?php

namespace Lc\ShopBundle\Twig;

use Doctrine\ORM\EntityManagerInterface;
use Lc\ShopBundle\Context\MerchantInterface;
use Lc\ShopBundle\Context\MerchantUtilsInterface;
use Lc\ShopBundle\Context\ProductCategoryInterface;
use Lc\ShopBundle\Context\ProductFamilyInterface;
use Lc\ShopBundle\Form\Frontend\NewsletterType;
use Liip\ImagineBundle\Imagine\Cache\CacheManager;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Component\Form\FormFactoryInterface;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpKernel\KernelInterface;
use Symfony\Component\Security\Core\Security;
use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;
use Twig\TwigFunction;

class FrontendTwigExtension extends AbstractExtension
{
        protected $em;
        protected $security;
        protected $merchantUtils;
        protected $formFactory;
        protected $requestStack;
        protected $productCategoryRepository;
        protected $merchantRepository;
        protected $productFamilyRepository;
        protected $liipCacheHelper;
        protected $parameterBag;
        protected $kernel;

        public function __construct(EntityManagerInterface $em, Security $security, MerchantUtilsInterface $merchantUtils,
                                    FormFactoryInterface $formFactory, RequestStack $requestStack, ParameterBagInterface $parameterBag, KernelInterface $kernel)
        {
                $this->em = $em;
                $this->security = $security;
                $this->merchantUtils = $merchantUtils;
                $this->formFactory = $formFactory;
                $this->requestStack = $requestStack;
                $this->productCategoryRepository = $this->em->getRepository($this->em->getClassMetadata(ProductCategoryInterface::class)->getName());
                $this->merchantRepository = $this->em->getRepository($this->em->getClassMetadata(MerchantInterface::class)->getName());
                $this->productFamilyRepository = $this->em->getRepository($this->em->getClassMetadata(ProductFamilyInterface::class)->getName());
                $this->parameterBag = $parameterBag;
                $this->kernel = $kernel;
        }

        public function getFunctions()
        {
                return array(
                        new TwigFunction('get_product_categories', [$this, 'getProductCategories']),
                        new TwigFunction('get_form_newsletter', [$this, 'getFormNewsletter']),
                        new TwigFunction('get_merchants', [$this, 'getMerchants']),
                        new TwigFunction('get_file_manager_folder', [$this, 'getFileManagerFolder']),
                );
        }

        public function getFilters()
        {
                return [
                        new TwigFilter('format_price', [$this, 'formatPrice']),
                        new TwigFilter('lc_cache', [$this, 'lcCache']),
                ];
        }

        public function lcCache($file)
        {
                $cacheTime = filemtime($this->kernel->getProjectDir() . '/public' . $file);
                if ($cacheTime) {
                        return $file . '?c=' . $cacheTime;
                } else {
                        return $file . "?c=0";
                }
        }

        public function getProductCategories()
        {
                $categories = $this->productCategoryRepository->findAllParents(false);
                return $categories;
        }

        public function getFormNewsletter()
        {
                $form = $this->formFactory->create(NewsletterType::class);
                return $form->createView();
        }

        public function formatPrice($price)
        {
                $price = number_format($price, 2, ',', ' ');
                $price = $price . '&nbsp;€';
                return $price;
        }

        public function getMerchants()
        {
                return $this->merchantRepository->findAll();
        }

}