public function SymfonyQuestionHelper::ask in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/symfony/console/Helper/SymfonyQuestionHelper.php \Symfony\Component\Console\Helper\SymfonyQuestionHelper::ask()

Asks a question to the user.

Parameters

InputInterface $input An InputInterface instance:

OutputInterface $output An OutputInterface instance:

Question $question The question to ask:

Return value

string The user answer

Throws

\RuntimeException If there is no data to read in the input stream

Overrides QuestionHelper::ask

File

vendor/symfony/console/Helper/SymfonyQuestionHelper.php, line 31

Class

SymfonyQuestionHelper

Symfony Style Guide compliant question helper.

Namespace

Symfony\Component\Console\Helper

Code

public function ask(InputInterface $input, OutputInterface $output, Question $question) {
  $validator = $question
    ->getValidator();
  $question
    ->setValidator(function ($value) use ($validator) {
    if (null !== $validator && is_callable($validator)) {
      $value = $validator($value);
    }

    // make required
    if (!is_array($value) && !is_bool($value) && 0 === strlen($value)) {
      throw new \Exception('A value is required.');
    }
    return $value;
  });
  return parent::ask($input, $output, $question);
}