resq/src/Controller/ServiceChargeController.php

<?php

namespace App\Controller;

use App\Entity\ServiceCharge;

use Doctrine\ORM\Query;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Validator\Validator\ValidatorInterface;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

use Catalyst\MenuBundle\Annotation\Menu;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;

class ServiceChargeController extends Controller
{
    /**
     * @Menu(selected="service_charge_list")
     */
    public function index()
    {
        $this->denyAccessUnlessGranted('service_charge.list', null, 'No access.');

        return $this->render('service-charge/list.html.twig');
    }

    public function rows(Request $req)
    {
        $this->denyAccessUnlessGranted('service_charge.list', null, 'No access.');

        // build query
        $qb = $this->getDoctrine()
                ->getRepository(ServiceCharge::class)
                ->createQueryBuilder('q');

        // get datatable params
        $datatable = $req->request->get('datatable');

        // count total records
        $tquery = $qb->select('COUNT(q)');

        // add fitlers to count query
        $this->setQueryFilters($datatable, $tquery);

        $total = $tquery->getQuery()
            ->getSingleScalarResult();

        // get current page number
        $page = $datatable['pagination']['page'] ?? 1;

        $perpage = $datatable['pagination']['perpage'];
        $offset = ($page - 1) * $perpage;

        // add metadata
        $meta = [
            'page' => $page,
            'perpage' => $perpage,
            'pages' => ceil($total / $perpage),
            'total' => $total,
            'sort' => 'asc',
            'field' => 'id'
        ];

        // build query
        $query = $qb->select('q');

        // add filters to query
        $this->setQueryFilters($datatable, $query);

        // check if sorting is present, otherwise use default
        if (isset($datatable['sort']['field']) && !empty($datatable['sort']['field'])) {
            $order = $datatable['sort']['sort'] ?? 'asc';
            $query->orderBy('q.' . $datatable['sort']['field'], $order);
        } else {
            $query->orderBy('q.id', 'asc');
        }

        // get rows for this page
        $obj_rows = $query->setFirstResult($offset)
            ->setMaxResults($perpage)
            ->getQuery()
            ->getResult();

        // process rows
        $rows = [];
        foreach ($obj_rows as $orow) {
            // add row data
            $row['id'] = $orow->getID();
            $row['name'] = $orow->getName();

            // add row metadata
            $row['meta'] = [
                'update_url' => '',
                'delete_url' => ''
            ];

            // add crud urls
            if ($this->isGranted('service_charge.update'))
                $row['meta']['update_url'] = $this->generateUrl('service_charge_update', ['id' => $row['id']]);
            if ($this->isGranted('service.delete'))
                $row['meta']['delete_url'] = $this->generateUrl('service_charge_delete', ['id' => $row['id']]);

            $rows[] = $row;
        }

        // response
        return $this->json([
            'meta' => $meta,
            'data' => $rows
        ]);
    }

    /**
     * @Menu(selected="service_charge_list")
     */
    public function addForm()
    {
        $this->denyAccessUnlessGranted('service_charge.add', null, 'No access.');

        $params = [];
        $params['obj'] = new ServiceCharge();
        $params['mode'] = 'create';

        // response
        return $this->render('service-charge/form.html.twig', $params);
    }

    public function addSubmit(Request $req, ValidatorInterface $validator, EntityManagerInterface $em)
    {
        $this->denyAccessUnlessGranted('service_charge.add', null, 'No access.');

        // create new object
        $row = new ServiceCharge();

        // set and save values
        $row->setName($req->request->get('name'));
        $row->setAmount($req->request->get('amount'));

        // validate
        $errors = $validator->validate($row);

        // initialize error list
        $error_array = [];

        // add errors to list
        foreach ($errors as $error) {
            $error_array[$error->getPropertyPath()] = $error->getMessage();
        }

        // check if any errors were found
        if (!empty($error_array)) {
            // return validation failure response
            return $this->json([
                'success' => false,
                'errors' => $error_array
            ], 422);
        } else {
            // validated! save the entity
            $em->persist($row);
            $em->flush();

            // return successful response
            return $this->json([
                'success' => 'Changes have been saved!'
            ]);
        }
    }

    /**
     * @Menu(selected="service_charge_list")
     * @ParamConverter("sc", class="App\Entity\ServiceCharge")
     */
    public function updateForm(ServiceCharge $sc)
    {
        $this->denyAccessUnlessGranted('service_charge.update', null, 'No access.');

        $params = [];
        $params['mode'] = 'update';

        if ($sc == null)
            throw $this->createNotFoundException('The item does not exist');

        $params['obj'] = $sc;

        // response
        return $this->render('service-charge/form.html.twig', $params);
    }

    /**
     * @ParamConverter("sc", class="App\Entity\ServiceCharge")
     */
    public function updateSubmit(Request $req, ValidatorInterface $validator, 
                                 ServiceCharge $sc, EntityManagerInterface $em)
    {
        $this->denyAccessUnlessGranted('service_charge.update', null, 'No access.');

        // make sure this row exists
        if ($sc == null)
            throw $this->createNotFoundException('The item does not exist');

        // set and save values
        $sc->setName($req->request->get('name'));
        $sc->setAmount($req->request->get('amount'));

        // validate
        $errors = $validator->validate($sc);

        // initialize error list
        $error_array = [];

        // add errors to list
        foreach ($errors as $error) {
            $error_array[$error->getPropertyPath()] = $error->getMessage();
        }

        // check if any errors were found
        if (!empty($error_array)) {
            // return validation failure response
            return $this->json([
                'success' => false,
                'errors' => $error_array
            ], 422);
        } else {
            // validated! save the entity
            $em->flush();

            // return successful response
            return $this->json([
                'success' => 'Changes have been saved!'
            ]);
        }
    }

    /**
     * @Menu(selected="service_list")
     * @ParamConverter("sc", class="App\Entity\ServiceCharge")
     */
    public function destroy(ServiceCharge $sc, EntityManagerInterface $em)
    {
        $this->denyAccessUnlessGranted('service_charge.delete', null, 'No access.');

        $params = [];

        if ($sc == null)
            throw $this->createNotFoundException('The item does not exist');

        // delete this row
        $em->remove($sc);
        $em->flush();

        // response
        $response = new Response();
        $response->setStatusCode(Response::HTTP_OK);
        $response->send();
    }

    protected function setQueryFilters($datatable, &$query)
    {
        if (isset($datatable['query']['data-rows-search']) && !empty($datatable['query']['data-rows-search'])) {
            $query->where('q.name LIKE :filter')
                ->setParameter('filter', '%' . $datatable['query']['data-rows-search'] . '%');
        }
    }

}