Fatal error : Declaration of {{path}}::validate() must be compatible with that of Sonata\AdminBundle\Admin\AdminInterface::validate()

You are trying to setup a custom validator on Sonata and you get this error :

Fatal error: Declaration of Adin\AdminBundle\Admin\AnnonceAdmin::validate() must be compatible with that of Sonata\AdminBundle\Admin\AdminInterface::validate() in /home/www/arlogis/src/Adin/AdminBundle/Admin/AnnonceAdmin.php on line 250

Don’t panic, just add this at the begining of your class

use Sonata\AdminBundle\Validator\ErrorElement;

in our example it’s in this file : /AdminBundle/Admin/AnnonceAdmin.php

Doctrine2 override save method

With Doctrine2 you cannot override save method but you can execute preUpdate() method.
See below how to implement it.

On your entity class, for example AdminBundle/Entity/Annonce.php, add the HasLifecycleCallbacks annontation

/**
 * @ORM\Entity(repositoryClass="Tripix\AdminBundle\Repository\AnnonceRepository")
 * @ORM\HasLifecycleCallbacks
 */

And your method, with the annotation

/** @ORM\PreUpdate() */
        public function preUpdate()
        {
                $this->created_at = new \DateTime("now");
        }

That’s all, it should works.

A complete example, just in case :

<?php
namespace Tripix\AdminBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\Common\Collections\ArrayCollection;


/**
 * @ORM\Entity(repositoryClass="Tripix\AdminBundle\Repository\AnnonceRepository")
 * @ORM\HasLifecycleCallbacks
 */
class Annonce
{

/** @ORM\PreUpdate() */
        public function preUpdate()
        {
                $this->created_at = new \DateTime("now");
        }

    public function __construct()
    {
        $this->created_at = new \DateTime("now");
        $this->visuels = new ArrayCollection();
    }

Symfony2 sonata custom CRUD template

It is possible to change templates use by default.

First, override the controller action method, in your AdminBundle/Controller/SecteurAdminController.php file

 /**
     * return the Response object associated to the list action
     *
     * @return Response
     */
    public function listAction()
    {
        if (false === $this->admin->isGranted('LIST')) {
            throw new AccessDeniedException();
        }

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

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

        //custom code from here
        $total = 0;
        $enable = 0;
        $new = 0;
        $site = $this->admin->site;

        $repository = $this->getDoctrine()->getRepository('TripixAdminBundle:Annonce');
        $total = $repository->getNombreAnnonceTotal($site);
        $enable = $repository->getNombreAnnonceEnabled($site);
        $new = $repository->getNombreAnnonceNew($site);



        return $this->render('TripixAdminBundle:CRUD:list_secteur.html.twig', array(
            'action'   => 'list',
            'form'     => $formView,
            'datagrid' => $datagrid,
            'total'     => $total,
            'enable'    => $enable,
            'new'       => $new,
        ));
    }

The import thing on previous code is the render() fonction, the first parameter is the template to use.
In our example, the template file will be /AdminBundle/Ressources/view/CRUD/list_secteur.html.twig

You can use the /AdminBundle/Ressources/view/CRUD/base_secteur.html.twig file as example for your custom template.

Parent function to override on the controller are here : /vendor/bundles/Sonata/AdminBundle/Controller/CRUDController.php

Symfony2 Sonata add custom column on page list

To add a custom column on a page list, just follow these steps. In the example, we will add a “Nombre d’annoce(s)” column.

On your admin class file (ex: /AdminBundle/Admin/SecteurAdmin.php), on your configureListFields() fonction, add a new entry on the listMapper object

    /**
     * @param \Sonata\AdminBundle\Datagrid\ListMapper $listMapper
     * @return void
     */
    protected function configureListFields(ListMapper $listMapper) {
        $listMapper
                ->addIdentifier('titre')
                ->add('Tri', 'string', array('template' => 'TripixAdminBundle:Admin:list_tri.html.twig'))
                ->add('Nb', 'string', array('label' => 'Nombre d\'annonce(s)', 'template' => 'TripixAdminBundle:Admin:list_nb_annonce.html.twig'))
                ->add('_action', 'actions', array(
                    'actions' => array(
                        'edit' => array(),
                        'delete' => array(),
                    )
                ))
        ;
    }

This new entry said to use the TripixADminBundle:Admin:list_tri.html.twig template.

Now, create your template file (list_nb_annonce.html) in the /AdminBundle/ressources/view/admin/ directory.

{% extends 'SonataAdminBundle:CRUD:base_list_field.html.twig' %}

{% block field%}
{% if admin.datagrid.results|length > 1 %}
 <div>
        <strong>{{ object.getNombreAnnonce}}</strong>
    </div>
{% endif %}
{% endblock %}

In our example, getNombreAnnonce() is not defined, let’s do it
In the /adminBundle/Entity/Secteur.php file, add

   public function getNombreAnnonce()
    {
      return count($this->getAnnonces());
    }

That’s all.

must be compatible with that of Sonata\AdminBundle\Admin\AdminInterface::validate() error message

You are using sonata and want to validate some fields.
You innocently add the validate function to your Admin file

function validate(ErrorElement $errorElement, $object)
{
}

Then, you get this error :

Fatal error: Declaration of Adin\AdminBundle\Admin\AnnonceAdmin::validate() must be compatible with that of Sonata\AdminBundle\Admin\AdminInterface::validate() in /home/www/arlogis/src/Adin/AdminBundle/Admin/AnnonceAdmin.php on line 251 

You checked to AdminInterface file the declaration is the same.

To fix it, you need to use additionnal namespace :

use Sonata\AdminBundle\Validator\ErrorElement;
use Symfony\Component\Validator\ValidatorInterface;