A choice list based on database values in sonata - entity

Question

is it possible to add a choice list in configureformfields with choices values mapped from the database instead of configuring it manually like this :
->add('testfield', 'choice', array('choices' => array(
'1' => 'choice 1',
'2' => 'choice 2',)))

Answer 1

if the entity is correctly mapped then you can just use:
->add('testfield')
and Sonata admin will do the job.
Let's say you have a Product class linked to a Category class:
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Product
*
* #ORM\Table(name="product")
*
*/
class Product
{
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="Category", inversedBy="products")
*/
protected $category;
/**
* Get id
*
* #return int
*/
public function getId()
{
return $this->id;
}
/**
* Set category
*
* #param Category $category
*
* #return Product
*/
public function setCategory(Category $category = null)
{
$this->category = $category;
return $this;
}
/**
* Get category
*
* #return Category
*/
public function getCategory()
{
return $this->category;
}
}
Simply using:
->add('category')
will provide a select form field with all the categories.
You can also use SONATA_TYPE_MODEL if you want something more advanced:
<?php
// src/AppBundle/Admin/ProductAdmin.php
class ProductAdmin extends AbstractAdmin
{
protected function configureFormFields(FormMapper $formMapper)
{
$imageFieldOptions = array(); // see available options below
$formMapper
->add('category', 'sonata_type_model', $imageFieldOptions)
;
}
}
The documentation is on this page: Form Types
Hope this helps!