Override CRUDController to add custom form elements to list template for batch action usage in SonataAdminBundle

admin.yml

# config/admin.yml
services:
    sonata.admin.electrical_equipment:
        class: Acme\DemoBundle\Admin\ElectricalEquipmentAdmin
        tags:
            - { name: sonata.admin, manager_type: orm, group: "Internal", label_catalogue: "messages", label: "Electrical Equipment" }
        arguments:
            - ~
            - Acme\DemoBundle\Entity\ElectricalEquipment
            - Acme\DemoBundle:ElectricalEquipmentAdmin
        calls:
            - [ addChild, [ @sonata.admin.electrical_equipment_test ] ]            
            - [ setSecurityContext, [@security.context]]

ElectricalEquipmentAdmin.php

<?php

namespace Acme\DemoBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;

class ElectricalEquipmentAdmin extends Admin
{
    public function getTemplate($name)
    {
        switch ($name) {
            case 'list':
                return 'AcmeDemoBundle:ElectricalEquipmentAdmin:list.html.twig';
                break;

            default:
                return parent::getTemplate($name);
                break;
        }
    }

    public function getBatchActions()
    {
        $actions = parent::getBatchActions();

        if ($this->hasRoute('edit') && $this->isGranted('TEST')) {
            $actions['test'] = array(
                'label'            => 'Test',
                'ask_confirmation' => false
            );
        }

        return $actions;
    }
}

ElectricalEquipmentAdminController.php

<?php

namespace Acme\DemoBundle\Controller;

use Sonata\AdminBundle\Controller\CRUDController as Controller;
use Sonata\DoctrineORMAdminBundle\Datagrid\ProxyQuery as ProxyQueryInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;

use Acme\DemoBundle\Entity\ElectricalEquipmentTest;

use Symfony\Component\Validator\Constraints\Collection;
use Symfony\Component\Validator\Constraints\Date;
use Symfony\Component\Validator\Constraints\NotBlank;

class ElectricalEquipmentAdminController extends Controller
{
    public function listAction()
    {
        if (false === $this->admin->isGranted('LIST')) {
            throw new AccessDeniedException();
        }

        $datagrid = $this->admin->getDatagrid();
        $formView = $datagrid->getForm()->createView();

        $actionForm = $this->get('form.factory')->createNamedBuilder('', 'form')
            ->add('testedAt', 'sonata_type_date_picker', array('label' => 'zum'))
            ->getForm();

        // set the theme for the current Admin Form
        $this->get('twig')->getExtension('form')->renderer->setTheme($formView, $this->admin->getFilterTheme());

        return $this->render($this->admin->getTemplate('list'), array(
            'action'     => 'list',
            'form'       => $formView,
            'actionForm' => $actionForm->createView(),
            'datagrid'   => $datagrid,
            'csrf_token' => $this->getCsrfToken('sonata.batch'),
        ));
    }

    public function batchActionTestIsRelevant(array $selectedIds, $allEntitiesSelected)
    {
        if (count($selectedIds) === 0) return false;

        $parameterBag = $this->get('request')->request;

        // check that a target has been chosen
        if (!$parameterBag->has('testedAt')) {
            return 'flash_batch_test_no_tested_at';
        }

        $testedAt = $parameterBag->get('testedAt');

        $dateConstraint = new Date();
        $dateConstraint->message = 'flash_batch_test_no_tested_at';

        $constraint = new Collection(array(
            'testedAt' => array(
                new NotBlank(),
                $dateConstraint
            )
        ));

        $errorList = $this->get('validator')->validateValue(array('testedAt' => $testedAt), $constraint);

        if (!count($errorList) == 0) {
            return $errorList[0]->getMessage();
        }

        return true;
    }

    public function batchActionTest(ProxyQueryInterface $query)
    {
        if (false === $this->admin->isGranted('TEST')) {
            throw new AccessDeniedException();
        }

        $parameterBag = $this->get('request')->request;

        $testedAt = new \DateTime($parameterBag->get('testedAt'));
        $user     = $this->container->get('security.context')->getToken()->getUser();

        $modelManager = $this->admin->getModelManager();
        try {
            foreach ($query->execute() as $entity) {
                $test = new ElectricalEquipmentTest();
                $test->setTestedAt($testedAt);
                $test->setUser($user);
                $entity->addTest($test);

                // Model Manager missing flush() method.
                $modelManager->update($entity);
            }

            $this->addFlash('sonata_flash_success', 'flash_batch_activation_success');
        } catch (ModelManagerException $e) {
            $this->addFlash('sonata_flash_error', 'flash_batch_activation_error');
        }

        return new RedirectResponse($this->admin->generateUrl('list', array('filter' => $this->admin->getFilterParameters())));
    }
}

list.html.twig

{% extends 'SonataAdminBundle:CRUD:base_list.html.twig' %}
 
{% block batch_actions %}
    <label class="checkbox" for="{{ admin.uniqid }}_all_elements">
        <input type="checkbox" name="all_elements" id="{{ admin.uniqid }}_all_elements">
        {{ 'all_elements'|trans({}, 'SonataAdminBundle') }}
         ({{ admin.datagrid.pager.nbresults }})
    </label>
 
    {{ form_label(actionForm.testedAt) }} {{ form_widget(actionForm.testedAt) }}
 
    <select name="action" style="width: auto; height: auto" class="form-control">
        {% for action, options in batchactions %}
            <option value="{{ action }}">{{ options.label }}</option>
        {% endfor %}
    </select>
{% endblock %}