FormValidator::executeValidateHandlers

public FormValidator::executeValidateHandlers(&$form, FormStateInterface &$form_state)

Executes custom validation handlers for a given form.

Button-specific handlers are checked first. If none exist, the function falls back to form-level handlers.

Parameters

$form: An associative array containing the structure of the form.

$form_state: The current state of the form. If the user submitted the form by clicking a button with custom handler functions defined, those handlers will be stored here.

Overrides FormValidatorInterface::executeValidateHandlers

File

core/lib/Drupal/Core/Form/FormValidator.php, line 74

Class

FormValidator

Provides validation of form submissions.

Namespace

Drupal\Core\Form

Code

public function executeValidateHandlers(&$form, FormStateInterface &$form_state) {
  // If there was a button pressed, use its handlers.
  $handlers = $form_state->getValidateHandlers();
  // Otherwise, check for a form-level handler.
  if (!$handlers && isset($form['#validate'])) {
    $handlers = $form['#validate'];
  }

  foreach ($handlers as $callback) {
    call_user_func_array($form_state->prepareCallback($callback), array(&$form, &$form_state));
  }
}