public function Email::validate in JS Callback Handler 8.3

Validates the callback.

Parameters

mixed ...: Any number of arguments can be passed here.

Return value

mixed The content to return.

Overrides JsCallbackBase::validate

File

js_callback_examples/src/Plugin/Js/Email.php, line 23

Class

Email

Plugin annotation @JsCallback( id = "js_callback_examples.email", parameters = { "user" = { "type" = "entity:user" }, }, )

Namespace

Drupal\js_callback_examples\Plugin\Js

Code

public function validate(UserInterface $user = NULL) {
  if (!$user || !$user
    ->isActive()) {
    drupal_set_message(t('You must enter a valid user.'), 'error');
    return FALSE;
  }
  return TRUE;
}