nineskeletor/src/Controller/BlogController.php

<?php

namespace App\Controller;

use App\Entity\Blog as Entity;
use App\Form\BlogType as Form;
use Doctrine\Persistence\ManagerRegistry;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;

class BlogController extends AbstractController
{
    private $data = 'blog';
    private $route = 'app_blog';
    private $render = 'Blog/';
    private $entity = "App\Entity\Blog";

    public function list(ManagerRegistry $em)
    {
        // Récupérer les blogs
        $datas = $em->getRepository($this->entity)->findAll();

        return $this->render($this->render.'list.html.twig', [
            $this->data.'s' => $datas,
            'useheader' => true,
            'usesidebar' => true,
        ]);
    }

    public function submit(Request $request, ManagerRegistry $em)
    {
        // Initialisation de l'enregistrement
        $data = new Entity();

        // Création du formulaire
        $form = $this->createForm(Form::class, $data, ['mode' => 'submit']);

        // Récupération des data du formulaire
        $form->handleRequest($request);

        // Sur erreur
        $this->getErrorForm(null, $form, $request, $data, 'submit');

        // Sur validation
        if ($form->get('submit')->isClicked() && $form->isValid()) {
            $data = $form->getData();

            $em->getManager()->persist($data);
            $em->getManager()->flush();

            // Retour à la liste
            return $this->redirectToRoute('app_child', ['catparent' => 'blog', 'idparent' => $data->getId()]);
        }

        // Affichage du formulaire
        return $this->render($this->render.'edit.html.twig', [
            'useheader' => true,
            'usesidebar' => true,
            $this->data => $data,
            'mode' => 'submit',
            'form' => $form->createView(),
            'from' => 'blog',
        ]);
    }

    public function update($id, Request $request, ManagerRegistry $em)
    {
        // Initialisation de l'enregistrement
        $data = $em->getRepository($this->entity)->find($id);
        $from = $request->get('from');

        // Création du formulaire
        $form = $this->createForm(Form::class, $data, ['mode' => 'update']);

        // Récupération des data du formulaire
        $form->handleRequest($request);

        // Sur erreur
        $this->getErrorForm(null, $form, $request, $data, 'update');

        // Sur validation
        if ($form->get('submit')->isClicked() && $form->isValid()) {
            $data = $form->getData();
            $em->getManager()->flush();

            // Retour à la liste
            if ('child' == $from) {
                return $this->redirectToRoute('app_child', ['catparent' => 'blog', 'idparent' => $data->getId()]);
            } else {
                return $this->redirectToRoute($this->route);
            }
        }

        // Affichage du formulaire
        return $this->render($this->render.'edit.html.twig', [
            'useheader' => true,
            'usesidebar' => true,
            $this->data => $data,
            'mode' => 'update',
            'form' => $form->createView(),
            'from' => $from,
        ]);
    }

    public function delete($id, Request $request, ManagerRegistry $em)
    {
        // Initialisation de l'enregistrement
        $data = $em->getRepository($this->entity)->find($id);

        try {
            $em->getManager()->remove($data);
            $em->getManager()->flush();
        } catch (\Exception $e) {
            $request->getSession()->getFlashBag()->add('error', $e->getMessage());

            return $this->redirectToRoute($this->route.'_update', ['id' => $id]);
        }

        return $this->redirectToRoute($this->route);
    }

    public function home(ManagerRegistry $em)
    {
        $heros = $em->getRepository("App\Entity\Child")->findHeads('blog');
        $blogs = $em->getRepository($this->entity)->findBy([], ['submitdate' => 'DESC']);

        return $this->render($this->render.'home.html.twig', [
            'useheader' => true,
            'usesidebar' => false,
            'heros' => $heros,
            'blogs' => $blogs,
        ]);
    }

    public function select(Request $request, ManagerRegistry $em)
    {
        $output = [];
        $page_limit = $request->query->get('page_limit');
        $q = $request->query->get('q');

        $qb = $em->getManager()->createQueryBuilder();
        $qb->select('table')->from($this->entity, 'table')
        ->where('table.name LIKE :value')
        ->setParameter('value', '%'.$q.'%')
        ->orderBy('table.name');

        $datas = $qb->setFirstResult(0)->setMaxResults($page_limit)->getQuery()->getResult();
        foreach ($datas as $data) {
            array_push($output, ['id' => $data->getId(), 'text' => $data->getName()]);
        }

        $ret_string['results'] = $output;

        return new JsonResponse($ret_string);
    }

    protected function getErrorForm($id, $form, $request, $data, $mode)
    {
        if ($form->get('submit')->isClicked() && 'delete' == $mode) {
        }

        if ($form->get('submit')->isClicked() && ('submit' == $mode || 'update' == $mode)) {
        }

        if ($form->get('submit')->isClicked() && !$form->isValid()) {
            $this->get('session')->getFlashBag()->clear();

            $errors = $form->getErrors();
            foreach ($errors as $error) {
                $request->getSession()->getFlashBag()->add('error', $error->getMessage());
            }
        }
    }
}