think\Model::validateData PHP Method

    protected function validateData($data)
    {
        if (!empty($this->validate)) {
            $info = $this->validate;
            if (is_array($info)) {
                $validate = Loader::validate();
                $validate->rule($info['rule']);
                $validate->message($info['msg']);
            } else {
                $name = is_string($info) ? $info : $this->name;
                if (strpos($name, '.')) {
                    list($name, $scene) = explode('.', $name);
                }
                $validate = Loader::validate($name);
                if (!empty($scene)) {
                    $validate->scene($scene);
                }
            }
            if (!$validate->check($data)) {
                $this->error = $validate->getError();
                if ($this->failException) {
                    throw new ValidateException($this->error);
                } else {
                    return false;
                }
            }
            $this->validate = null;
        }
        return true;
    }