Edit file File name : ValidatorFactory.php Content :<?php namespace Api\V8\Factory; use Symfony\Component\Validator\Validator\ValidatorInterface; class ValidatorFactory { /** * @var ValidatorInterface */ protected $validator; /** * @param ValidatorInterface $validator */ public function __construct(ValidatorInterface $validator) { $this->validator = $validator; } /** * @param \Symfony\Component\Validator\Constraint[] $constraints * @param boolean $allowNull * * @return \Closure */ public function createClosure(array $constraints, $allowNull = false) { return function ($value) use ($constraints, $allowNull) { if ($allowNull && $value === null) { return true; } $violations = $this->validator->validate($value, $constraints); return !$violations->count(); }; } /** * @param \Symfony\Component\Validator\Constraint[] $constraints * @param boolean $allowNull * * @return \Closure */ public function createClosureForIterator(array $constraints, $allowNull = false) { return function ($value) use ($constraints, $allowNull) { if ($allowNull && $value === null) { return true; } if (!is_array($value) && !$value instanceof \Iterator) { return false; } foreach ($value as $v) { if ($this->validator->validate($v, $constraints)->count()) { return false; } } return true; }; } } Save