public function rules()
{
$rules = parent::rules();
$rules[] = [$this->getAttribute(), 'string', 'min' => strlen($this->min) ? (int) $this->min : null, 'max' => strlen($this->max) ? (int) $this->max : null, 'length' => strlen($this->length) ? (int) $this->length : null];
if (isset($this->required)) {
$rules[] = [$this->getAttribute(), 'required'];
}
if (isset($this->pattern)) {
$rules[] = [$this->getAttribute(), 'match', 'pattern' => $this->pattern];
}
if (isset($this->email)) {
$rules[] = [$this->getAttribute(), 'email'];
}
return $rules;
}