TemplateBundle/Admin/TemplateAdmin.php

<?php

namespace TemplateBundle\Admin;

use Base\AdminBundle\Admin\BaseAdmin;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Show\ShowMapper;
use TemplateBundle\Entity\Template;

class TemplateAdmin extends BaseAdmin
{

    public function getTemplate($name)
    {
        switch ($name) {
            case 'edit':
                return 'TemplateBundle:Template:template_edit.html.twig';
                break;

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

    function getNewInstance()
    {
        return new Template($this->get('security.token_storage'));
    }

    /**
     * @param DatagridMapper $datagridMapper
     */
    protected function configureDatagridFilters(DatagridMapper $datagridMapper)
    {
        $datagridMapper
            ->add('name');
    }

    /**
     * @param ListMapper $listMapper
     */
    protected function configureListFields(ListMapper $listMapper)
    {
        $listMapper
            ->add('name')
            ->add('content', 'string', array('template' => 'TemplateBundle:CRUD:content_field.html.twig','data' => 'list'))
            ->add('_action', null, array(
                'actions' => array(
                    'show' => array(),
                    'edit' => array(),
                    'clone' => array(
                        'template' => '@BaseAdmin/CRUD/list__action_clone.html.twig'
                    ),
                    'delete' => array(),
                )
            ));
    }

    /**
     * @param FormMapper $formMapper
     */
    protected function configureFormFields(FormMapper $formMapper)
    {
        $formMapper
            ->add('name')
            ->add('content', null, array('attr' => array('style' => 'height: 300px')));
    }

    /**
     * @param ShowMapper $showMapper
     */
    protected function configureShowFields(ShowMapper $showMapper)
    {
        $showMapper
            ->add('name')
            ->add('content','string', array(
                'template' => 'TemplateBundle:Template:show_template.html.twig',
            ));
    }
    
    /**
     * @param string $action
     * @param Template $object
     *
     * @return array
     */
    public function getActionButtons($action, $object = null)
    {
        $actions = parent::getActionButtons($action, $object);
        if ($this->isCurrentRoute('show')) {
            $actions['clone'] = [
                'template' => '@BaseAdmin/CRUD/show__action_clone.html.twig',
            ];
        }

        return $actions;
    }

}