public function ask(InputInterface $input, OutputInterface $output, Question $question)
{
$validator = $question->getValidator();
$question->setValidator(function ($value) use($validator) {
if (null !== $validator) {
$value = $validator($value);
}
if (!is_array($value) && !is_bool($value) && 0 === strlen($value)) {
throw new LogicException('A value is required.');
}
return $value;
});
return parent::ask($input, $output, $question);
}
/**
* Validates an attempt.
*
* @param callable $interviewer A callable that will ask for a question and return the result
* @param OutputInterface $output An Output instance
* @param Question $question A Question instance
*
* @return string The validated response
*
* @throws \Exception In case the max number of attempts has been reached and no valid response has been given
*/
private function validateAttempts(callable $interviewer, OutputInterface $output, Question $question)
{
$error = null;
$attempts = $question->getMaxAttempts();
while (null === $attempts || $attempts--) {
if (null !== $error) {
$this->writeError($output, $error);
}
try {
return call_user_func($question->getValidator(), $interviewer());
} catch (\Exception $error) {
}
}
throw $error;
}
/**
* Validates an attempt.
*
* @param callable $interviewer A callable that will ask for a question and return the result
* @param OutputInterface $output An Output instance
* @param Question $question A Question instance
*
* @return string The validated response
*
* @throws \Exception In case the max number of attempts has been reached and no valid response has been given
*/
private function validateAttempts($interviewer, OutputInterface $output, Question $question)
{
$error = null;
$attempts = $question->getMaxAttempts();
while (null === $attempts || $attempts--) {
if (null !== $error) {
if (null !== $this->getHelperSet() && $this->getHelperSet()->has('formatter')) {
$message = $this->getHelperSet()->get('formatter')->formatBlock($error->getMessage(), 'error');
} else {
$message = '<error>' . $error->getMessage() . '</error>';
}
$output->writeln($message);
}
try {
return call_user_func($question->getValidator(), $interviewer());
} catch (\Exception $error) {
}
}
throw $error;
}
