Adding custom blocks to your admin panel is not as straightforward as you would expect. Here are the basics to do so :

1) Extend BaseBlockService

I created the file TEN/AdminBundle/Block/Service/StatisticsBlockService.php with the following content :

<?php

namespace TEN\AdminBundle\Block\Service;

use Symfony\Component\HttpFoundation\Response;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Validator\ErrorElement;
use Sonata\BlockBundle\Model\BlockInterface;
use Sonata\BlockBundle\Block\BaseBlockService;
use Sonata\BlockBundle\Block\BlockContextInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Doctrine\ORM\EntityManager;

class StatisticsBlockService extends BaseBlockService
{
    private $em;

    public function setDefaultSettings(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'template' => 'TENAdminBundle:Block:block_statistics.html.twig',
        ));
    }

    public function execute(BlockContextInterface $blockContext, Response $response = null)
    {
        // merge settings
        $settings = $blockContext->getSettings();

        $userRepository = $this->em->getRepository('TENUserBundle:User');
        $activatedUsers = $userRepository->countActivated();

        return $this->renderResponse($blockContext->getTemplate(), array(
            'activatedUsers' => $activatedUsers,
            'block'     => $blockContext->getBlock(),
            'settings'  => $settings,
        ), $response);
    }

    public function __construct($name, $templating, EntityManager $entityManager)
    {
            parent::__construct($name, $templating);
            $this->em = $entityManager;
    }
}

2) Create the twig file for your custom block

I created the file TEN/AdminBundle/Resources/views/Block/block_statistics.html.twig with the following content :

{% extends sonata_block.templates.block_base %}

{% block block %}
    <div class="col-lg-3 col-xs-6">
        <div class="small-box bg-green">
            <div class="inner">
                <h3>{{ activatedUsers }}</h3>

                <p>Activated</p>
            </div>
            <div class="icon">
                <i class="fa fa-users"></i>
            </div>
            <a href="ten/user/user/list" class="small-box-footer">
                View more <i class="fa fa-arrow-circle-right"></i>
            </a>
        </div>
    </div>
{% endblock %}

3) Register the new service StatisticsBlockService

sonata.block.service.statistics:
        class: TEN\AdminBundle\Block\Service\StatisticsBlockService
        tags:
            - name: sonata.block
              manager_type: orm
              label: Statistics
        arguments:
            - "sonata.block.service.statistics"
            - "@templating"
            - "@doctrine.orm.entity_manager"

4) Edit config.yml

Finally add the following lines to config.yml :

sonata_block:
    blocks:
        sonata.block.service.statistics: ~

sonata_admin:
    dashboard:
        blocks:
            -
                position: top
                class: col-md-12
                type: sonata.block.service.statistics

That’s it!

Add custom blocks to SonataAdminBundle admin panel in Symfony

1) Extend BaseBlockService

2) Create the twig file for your custom block

3) Register the new service StatisticsBlockService

4) Edit config.yml

Written by

Grégoire Willmann

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