annoxoli

Update:
its work, but only if i create manual some user with their right email address!
Code:

public function addFromCheckout() {
        $url = '';
        $post = req::get('post');
        $res = $this->validateStep1($post);
		//if registration from checkout is enabled and unregistered users don't allow to checkout
        if(isset($post['registration']) && !frame::_()->getModule('options')->get('allow_guest_checkout')) {
            $userAddErrors = frame::_()->getModule('user')->getModel()->validate($post['registration']);
            if(!empty($userAddErrors)) {
                $regErrors = array();
                foreach($userAddErrors as $key => $error)
                    $regErrors['registration['. $key. ']'] = lang::_('Registration: '). $error;     //To touch only registration fields
                $res->pushError( $regErrors );
            }
        }
        if(!$res->error) {
            if(!frame::_()->getModule('user')->getCurrentID()) {
                if(empty($post['registration']) && frame::_()->getModule('options')->get('checkout_force_create_user')) {
                    if(empty($post['registration']['password']))
                        $post['registration']['password'] = wp_generate_password(12, false);
                    $post['registration']['email'] = frame::_()->getModule('user')->getCurrentEmail();
                    if(empty($post['registration']['email'])) {
                        $post['registration']['username'] = utils::getRandStr();
                        $post['registration']['email'] = $post['registration']['username']. '@temp.com';
                    } else {
                        $userNameArr = explode('@', $post['registration']['email']);
                        $post['registration']['username'] = $userNameArr[0];
                    }
                }
                if(isset($post['registration'])) {                      //if registration from checkout is enabled
                    $post['registration']['forceLogin'] = true;         //make he logged right affter his add
                    req::setVar('loggedOnCheckoutRegister', true, 'session'); //to know that we logged him, @see checkoutView::getConfirnationPage()
                    frame::_()->getModule('user')->getModel()->post( $post['registration'], true /*This will skip validation*/ );
                }
            }
            if($id = $this->getModel()->post($post)) {
                $res->setHtml( frame::_()->getModule('checkout')->getView('checkout')->getConfirnationPage() );
            } else {
                errors::push(lang::_('Can not add Order Record'));
                $res->addError( errors::get() );
            }
        }
        return $res->ajaxExec();
    }

Here:

$post['registration']['email'] = $post['registration']['username']. '@temp.com';

there create some user email with randome value! (Like: yHNIGotv8t@temp.com )
you must select there user email on orders.php (billing_email)

how can i do that ?

greetings