/**
* Create
*
* @param string|string[] $key
* @param string|string[] $default
* @param string $type
* @param array $candidates
* @return self
*/
public static function create($key, $default, $type, array $candidates)
{
$rule = new self();
$rule->key = $key;
$rule->default = $default;
$rule->type = $type;
$rule->candidates = $candidates;
$rule->delimiter = $rule->types(self::TYPE_SET) ? Straw::getConfigure('set') : null;
return $rule;
}
/**
* Set datetime type
*
* @param string $format
* @return $this
*/
public function datetime($format)
{
$this->piece = Straw::getConfigure('alnum');
$this->datetime_format = $format;
$this->is_datetime = true;
return $this;
}