Symfony erron on callback constraint validation

Question

I am attempting to apply this symfony callback constraint reference, but I am getting the following error:

[] targeted by Callback constraint is not a valid callable

I've also seen this question, which did not help much.

So, what I am trying to do is to limit input to a entity field to a defined array of items ( self::$valid_years in the code below ).

I also did a dump on the variable $method on class below, which generates the error, and in fact the $method variable is an empty array.

Symfony\Component\Validator\Constraints\CallbackValidaor.php

This is the entity:

Warranty.php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Mapping\ClassMetadata;

/**
 * @ORM\Entity(repositoryClass="AppBundle\Repository\WarrantyRepository")
 * @ORM\Table(name="warranties")
 */
class Warranty
{
/** 
* @ORM\Id 
* @ORM\OneToOne(targetEntity="Brand") 
* @Assert\NotBlank(message="La marque est requise.")
*/
private $brand;

/**
 * @ORM\Column(type="string",length=5)
 * @Assert\Callback
 */
private $wrYear;

.... some code .....

public static $valid_years;
public static $valid_wrpaint;
public static $valid_wrcorr;
public static $valid_wrtransf;

public function __construct()
{
    self::$valid_years = array('0','1','2','3','4','5','ilim');
    self::$valid_wrpaint = array('0','1','2','3','4','5','ilim','n/c');
    self::$valid_wrcorr = array('0','3','7','8','12','13','ilim','n/c');
    self::$valid_wrtransf = array('Y','N','n/c');
}



public function validate(ExecutionContextInterface $context, $payload)
{
            \Doctrine\Common\Util\Debug::dump(self::$valid_years);
    if (!in_array($this->getWrYear(), self::$valid_years)) {
        $context->buildViolation('Invalid year!')
            ->atPath('wrYear')
            ->addViolation();
    }

}

public static function loadValidatorMetadata(ClassMetadata $metadata)
{
    $metadata->addConstraint(new Assert\Callback('validate'));
}

.... some code....
/**
 * Get wrYear
 *
 * @return string
 */
public function getWrYear()
{
    return $this->wrYear;
}
}

validation.yml

AppBundle\Entity\Warranty:
    constraints:
        - Callback: validate

Asha Asha · Accepted Answer · 2017-10-11T13:22:15

The configuration for validation seems mixed up. Use below for annotation configuration

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Mapping\ClassMetadata;

/**
 * @ORM\Entity(repositoryClass="AppBundle\Repository\WarrantyRepository")
 * @ORM\Table(name="warranties")
 */
class Warranty
{
        /**
         * @Assert\Callback
         */
        public function validate(ExecutionContextInterface $context, $payload)
        {
            // ...
        }
}

Then remove your validation.yml config (yml configuration) and loadValidatorMetadata (PHP configuration)

Symfony erron on callback constraint validation

2 Answers