When working with Drupal, it's important to ensure data integrity by validating user input. Drupal 9 provides a robust system for field validation through constraints.
When working with Drupal, it's important to ensure data integrity by validating user input. Drupal 9 provides a robust system for field validation through constraints.
This time we will check if the current user has role 'administrator', we will use a simple controller example to demonstrate that.