/**
* @param string $idsStr Eg: '1, 3, 5, 10'
*
* @return IdSet
*
* @throws InvalidArgumentException
*/
public static function fromString($idsStr)
{
if (!Validator::isOptionalString($idsStr)) {
throw InvalidArgumentException::notString('ids', $idsStr);
}
$idsStr = preg_replace('/\\s+/', '', $idsStr);
$idsArr = $idsStr == '' ? array() : explode(IdSet::DELIMITER, $idsStr);
return static::fromArray($idsArr);
}
/**
* {@inheritDoc}
*/
public function isOptionalString($value, $suppressException = true)
{
/* Clear the last error. */
$this->lastError = null;
/* If valid just return true. */
if (Validator::isOptionalString($value)) {
return true;
}
/* Set the error message. */
$this->lastError = sprintf('Expected null or string, \'%s\' given.', gettype($value));
return $this->validationFailed($suppressException);
}
