Piwik\Plugins\Installation\FormSuperUser::init PHP Method

    function init()
    {
        HTML_QuickForm2_Factory::registerRule('checkLogin', 'Piwik\\Plugins\\Installation\\Rule_isValidLoginString');
        HTML_QuickForm2_Factory::registerRule('checkEmail', 'Piwik\\Plugins\\Installation\\Rule_isValidEmailString');
        $login = $this->addElement('text', 'login')->setLabel(Piwik::translate('Installation_SuperUserLogin'));
        $login->addRule('required', Piwik::translate('General_Required', Piwik::translate('Installation_SuperUserLogin')));
        $login->addRule('checkLogin');
        $password = $this->addElement('password', 'password')->setLabel(Piwik::translate('Installation_Password'));
        $password->addRule('required', Piwik::translate('General_Required', Piwik::translate('Installation_Password')));
        $pwMinLen = UsersManager::PASSWORD_MIN_LENGTH;
        $pwLenInvalidMessage = Piwik::translate('UsersManager_ExceptionInvalidPassword', array($pwMinLen));
        $password->addRule('length', $pwLenInvalidMessage, array('min' => $pwMinLen));
        $passwordBis = $this->addElement('password', 'password_bis')->setLabel(Piwik::translate('Installation_PasswordRepeat'));
        $passwordBis->addRule('required', Piwik::translate('General_Required', Piwik::translate('Installation_PasswordRepeat')));
        $passwordBis->addRule('eq', Piwik::translate('Installation_PasswordDoNotMatch'), $password);
        $email = $this->addElement('text', 'email')->setLabel(Piwik::translate('Installation_Email'));
        $email->addRule('required', Piwik::translate('General_Required', Piwik::translate('Installation_Email')));
        $email->addRule('checkEmail', Piwik::translate('UsersManager_ExceptionInvalidEmail'));
        $this->addElement('checkbox', 'subscribe_newsletter_piwikorg', null, array('content' => '  ' . Piwik::translate('Installation_PiwikOrgNewsletter')));
        $professionalServicesNewsletter = Piwik::translate('Installation_ProfessionalServicesNewsletter', array("<a href='http://piwik.org/consulting/?pk_medium=App_Newsletter_link&pk_source=Piwik_App&pk_campaign=App_Installation' style='color:#444;' rel='noreferrer' target='_blank'>", "</a>"));
        $currentLanguage = StaticContainer::get('Piwik\\Translation\\Translator')->getCurrentLanguage();
        $this->addElement('checkbox', 'subscribe_newsletter_professionalservices', null, array('content' => '&nbsp;&nbsp;' . $professionalServicesNewsletter));
        $this->addElement('submit', 'submit', array('value' => Piwik::translate('General_Next') . ' »', 'class' => 'btn'));
        // default values
        $this->addDataSource(new HTML_QuickForm2_DataSource_Array(array('subscribe_newsletter_piwikorg' => 1, 'subscribe_newsletter_professionalservices' => $currentLanguage == 'de' ? 0 : 1)));
    }