Configuring Sonata Admin Bundle with Symfony 4

Question

I'm trying to install the Sonata Admin Bundle to generate easily admin interfaces of my various entities. I've been following the official docs (https://symfony.com/doc/master/bundles/SonataAdminBundle/getting_started/creating_an_admin.html) but I'm facing a problem I can't figure out while creating my first simple Admin.

My entity is :

<?php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;
use Gedmo\Timestampable\Traits\TimestampableEntity;

/**
 * @ORM\Entity(repositoryClass="App\Repository\SectorRepository")
 */
class Sector
{
    use TimestampableEntity;

    /**
     * @ORM\Id()
     * @ORM\GeneratedValue()
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=30)
     */
    private $name;

    /**
     * @Gedmo\Slug(fields={"name"})
     * @ORM\Column(type="string", length=128)
     */
    private $slug;

    /**
     * @ORM\OneToMany(targetEntity="App\Entity\Company", mappedBy="sector", cascade = {"persist"})
     * @ORM\JoinColumn(onDelete="SET NULL")
     */
    private $companies;

    public function __toString()
    {
        return $this->name;
    }

    public function getId()
    {
        return $this->id;
    }

    public function getName(): ?string
    {
        return $this->name;
    }

    public function setName(string $name): self
    {
        $this->name = $name;

        return $this;
    }

    public function getSlug(): ?string
    {
        return $this->slug;
    }

    public function setSlug(string $slug): self
    {
        $this->slug = $slug;

        return $this;
    }

    public function getCompanies(): array
    {
        return $this->companies;
    }

    public function setCompanies($companies): self
    {
        $this->companies = $companies;

        return $this;
    }
}

My Admin class looks like this:

<?php

namespace App\Admin;

use Sonata\AdminBundle\Admin\AbstractAdmin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;
use Symfony\Component\Form\Extension\Core\Type\TextType;

class SectorAdmin extends AbstractAdmin
{
    protected function configureFormFields(FormMapper $formMapper)
    {
        $formMapper->add('name', TextType::class);
    }

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

    protected function configureListFields(ListMapper $listMapper)
    {
        $listMapper->addIdentifier('name');
    }
}

I've added this configuration:

services:
    admin.sector:
        class: App\Admin\SectorAdmin
        arguments: [ ~, App\Entity\Sector, ~]
        tags:
            - { name: sonata.admin, manager_type: orm, label: Sector}
    public: true

And in my sonata admin routes file:

admin_area:
    resource: "@SonataAdminBundle/Resources/config/routing/sonata_admin.xml"
    prefix: /admin

_sonata_admin:
    resource: .
    type: sonata_admin
    prefix: /admin

Which is, as I understand from the doc the minimum configuration to get the Admin to be registered.

Yet, when I run my code, I get an error "Array to string conversion" on the {{ form_errors(form) }} of the datagrid filters. If I comment out the line adding the name attribute to these filters, the list page renders fine but if I then enter the form (creation/edition) view, I get the same error on another element so I guess the problem is deeper.

Could it be a problem of compatibility with Symfony 4.x ?

Thanks by advance !

Hi, thanks for answering. Here is the stack trace returned by Symfony: ErrorException : pasted.co/46e0232d Haha, digging into this one deeper, it seems the problem comes from another library in fact. I'm going to investigate further ! — TPouliquen
Yes, apparently the problem came from the fact that I used a particular package to format phone numbers. And it failed on entities that didn't even have a phone number but well.... Thanks for the exterior eye ;) — TPouliquen
Good to hear that as your files look ok, I was a bit confused. If you use slack you can find support with sonata on symfony.com/slack-invite in #sonata channel. — kunicmarko20

TPouliquen TPouliquen · Accepted Answer · 2018-04-10T10:26:03

Th problem came from using the Misd Phone Number Bundle (https://github.com/misd-service-development/phone-number-bundle).

I still haven't figured out why, I'll edit this if I find the cause of the bug or a solution to it ;)

Configuring Sonata Admin Bundle with Symfony 4

2 Answers