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<?php |
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namespace Bdf\Form\Validator; |
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use Bdf\Form\ElementInterface; |
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use Bdf\Form\Error\FormError; |
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use Exception; |
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use Symfony\Component\Validator\Constraint; |
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/** |
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* Value validator using symfony constraint |
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* The element will be used as "root" context object on the symfony validator |
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* |
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* @template T |
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* @implements ValueValidatorInterface<T> |
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*/ |
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final class ConstraintValueValidator implements ValueValidatorInterface |
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{ |
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/** |
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* @var self |
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*/ |
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private static $emptyInstance; |
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/** |
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* @var Constraint[] |
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*/ |
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private $constraints; |
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/** |
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* @var TransformerExceptionConstraint |
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*/ |
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private $transformerExceptionConstraint; |
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/** |
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* ConstraintValueValidator constructor. |
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* |
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* @param Constraint[] $constraints |
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* @param TransformerExceptionConstraint|null $transformerExceptionConstraint |
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*/ |
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public function __construct(array $constraints = [], ?TransformerExceptionConstraint $transformerExceptionConstraint = null) |
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{ |
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$this->constraints = $constraints; |
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$this->transformerExceptionConstraint = $transformerExceptionConstraint ?? new TransformerExceptionConstraint(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($value, ElementInterface $element): FormError |
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{ |
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if (!$this->constraints) { |
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return FormError::null(); |
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} |
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$root = $element->root(); |
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$groups = $root->constraintGroups(); |
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/** @psalm-suppress TooManyArguments */ |
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$context = $root->getValidator()->startContext($element); |
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foreach ($this->constraints as $constraint) { |
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$errors = $context->validate($value, $constraint, $groups)->getViolations(); |
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if ($errors->has(0)) { |
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return FormError::violation($errors->get(0)); |
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} |
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} |
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return FormError::null(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function onTransformerException(Exception $exception, $value, ElementInterface $element): FormError |
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{ |
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if ($this->transformerExceptionConstraint->ignoreException) { |
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return FormError::null(); |
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} |
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/** @psalm-suppress TooManyArguments */ |
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$errors = $element->root() |
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->getValidator() |
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->startContext($element) |
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->validate($value, $this->transformerExceptionConstraint->withException($exception)) |
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->getViolations() |
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; |
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if ($errors->has(0)) { |
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return FormError::violation($errors->get(0)); |
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} |
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return FormError::null(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function constraints(): array |
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{ |
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return $this->constraints; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function hasConstraints(): bool |
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{ |
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return !empty($this->constraints); |
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} |
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/** |
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* Get the empty value validator instance |
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* |
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* @return ConstraintValueValidator<mixed> |
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*/ |
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public static function empty(): self |
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{ |
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if (self::$emptyInstance) { |
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return self::$emptyInstance; |
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} |
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return self::$emptyInstance = new self(); |
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} |
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} |
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b2pweb /
bdf-form
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.