Register Form

/* Action */
public function actionRegister(): void
    {
        if ($this->getUser()->isLoggedIn()) {
            $this->flashMessage("You're already logged in.", "warn");
            $this->redirect("Homepage:default");
        }
    }

/* */

/* Component */
    protected function createComponentRegister(): Form
    {
        $form = new Form;

        $form->setHtmlAttribute("class", "nform-calc-left");

        $form->addText('username', 'Username:')->setHtmlAttribute("class", "form-control")
            ->setRequired('This field is required');

        $form->addText('email', 'Email:')->setHtmlAttribute("class", "form-control")
            ->setRequired('This field is required');

        $form->addPassword('password', 'Password:')->setHtmlAttribute("class", "form-control")
            ->setRequired('This field is required');

        $form->addText('showAs', 'Show your name as:')->setHtmlAttribute("class", "form-control")
            ->setRequired('This field is required');

        //$form->recaptcha("captcha", "", "Fill out the captcha.")->setRequired("Fill out the captcha.");

        $form->addSubmit('send', 'Register')->setHtmlAttribute("class", "btn btn-primary float-right");

        $renderer = $form->getRenderer();
        $renderer->wrappers['controls']['container'] = 'div';
        $renderer->wrappers['pair']['container'] = 'dl';
        $renderer->wrappers['label']['container'] = 'dt';
        $renderer->wrappers['control']['container'] = 'dd';

        $form->onSuccess[] = [$this, 'processRegister'];
        return $form;
    }

/* Process */
    public function processRegister(Form $f, array $v): void
    {
        // hashing password
        $pass = $v['password'];
        $v['password'] = $this->passwords->hash($pass);

        // checking if username isn't used
        $username = $this->database->table("ns_users")->where("username", $v['username'])->fetch();
        if (!$username) {
            // checking if email isn't used
            $email = $this->database->table("ns_users")->where("email", $v['email'])->fetch();
            if (!$email) {
                // registering

                $user = $this->database->table("ns_users")->insert($v);
                $this->model->sendVerifyEmail($v['email'], $user->id);

                $this->redirect("Auth:login");
            } else {
                $f->addError("Email is already used.");
            }
        } else {
            $f->addError("Username is already used.");
        }
    }

Create Section Form:

/* Actions */
    public function actionCreate($s): void
    {

        if (!$this->getUser()->isLoggedIn()) {
            $this->redirect("Auth:login");
        }
        if (!$this->getUser()->isAllowed("section", "edit")) {
            $this->redirect("Homepage:default");
        }
    }
    public function actionEdit($s): void
    {

        if (!$this->getUser()->isLoggedIn()) {
            $this->redirect("Auth:login");
        }
        if (!$this->getUser()->isAllowed("section", "edit")) {
            $this->redirect("Homepage:default");
        }
        $this["section"]->setDefaults($this->model->getSectionArray((int)$s));
    }

/* Component */
    protected function createComponentSection(): Form
    {
        $form = new Form();

        $form->addText('name', 'Name:')->setHtmlAttribute("class", "form-control")->setRequired();
        $form->addText('image', 'Image:')->setHtmlAttribute("class", "form-control")->setRequired();
        $form->addTextArea('description', 'Description:')->setHtmlAttribute("class", "form-control")->setRequired();
        $form->addSubmit("submit", "Create")->setHtmlAttribute("class", "btn btn-primary float-right");

        $renderer = $form->getRenderer();
        $renderer->wrappers['controls']['container'] = 'div';
        $renderer->wrappers['pair']['container'] = 'dl';
        $renderer->wrappers['label']['container'] = 'dt';
        $renderer->wrappers['control']['container'] = 'dd';

        $form->onSuccess[] = [$this, 'processSection'];
        return $form;
    }

/* Process */
    public function processSection(Form $form, array $v): void
    {

        if (!$this->getUser()->isLoggedIn()) {
            $this->error("Access denied.", 403);
        }
        if (!$this->getUser()->isAllowed("section", "edit")) {
            $this->error("Access denied.", 403);
        }
        if ($this->model->saveSection((int)$this->getParameter("s"), $v)) {
            $this->flashMessage("Section created successfully.", "success");
        } else {
            $this->flashMessage("Section updated successfully.", "success");
        }
    }

/* model->saveSection() */
    public function saveSection(int $s, array $v): bool
    {
        if ($s) {
            $section = $this->database->table("ns_sections")->get($s);
            if ($section == null) {
                $this->error("Page not found.");
            }
            $section->update($v);
            return false;
            //$this->flashMessage("Section updated successfully.", "success");
        } else {
            $this->database->table("ns_sections")->insert($v);
            //$this->flashMessage("Section created successfully.", "success");
            return true;
            $this->redirect("Homepage:default");
        }
    }