Check if a value has changed

Sebastian

2/26/24, 11:45 AM

Is it possible to check within a constraint validation if a field value has changed?


namespace Drupal\example\Plugin\Validation\Constraint;

use Drupal\Core\Entity\EntityPublishedInterface;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

/**
 * Validates the OverriddenButChanged constraint.
 */
class OverriddenButChangedValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint)
  {
    $entity = &$value;
  }
}

Inside $entity I only can find the new values, but I can't compare them to the old ones.

0 + 0

entities

Elon Musk

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EN: Check if a value has changed

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