Symfony2+Doctrine - Validating one-to-many collection of entities

Question

I have a form to create a new entity. That entity has a collection of other entities that are also entered in that form.

I want to use the validation options of the

Answer 1

Just add annotation assert like following

/** 
 * @Assert\Count(
 *      min = "1",
 *      minMessage = "You must specify at least one"
 * )
 * @Assert\Valid 
 * 
 */
protected $name_of_collection_property;

Answer 2

I use this:

use Symfony\Component\Validator\ExecutionContextInterface;

class Person 
{
...

/**
 * @ORM\OneToMany(targetEntity="Address", mappedBy="owner", cascade={"persist", "detach"})
 */
protected $addressList;

....

/**
 * @Assert\Callback
 */
public function validate(ExecutionContextInterface $context)
{
    if (!$this->getAddressList()->count()) {
        $context->addViolationAt(
            'addressList',
            'You must add at least one address',
            array(),
            null
        );
    }
}
}

http://symfony.com/doc/current/reference/constraints/Callback.html

Answer 3

You could also use the "Valid" constraint with the "All" constraint :

/**
 * @ORM\OneToMany(targetEntity="Address", mappedBy="owner", cascade={"persist", "detach"})
 * @Assert\All({
 *     @Assert\Valid
 * })
 */

protected $addressList;

Answer 4

I had the same problem but was solved with:

/**
 * @ORM\OneToMany(
 *  targetEntity="Entity",
 *  mappedBy="mappedEntity",
 *  cascade={"persist" , "remove"}
 * )
 * @Assert\Valid
 */