/**
  * Generate the module
  */
 protected function compile()
 {
     /** @var Message|\Model\Collection $objMessages */
     /** @noinspection PhpUndefinedMethodInspection */
     $objMessages = Message::findBy(array('pid IN (' . implode(',', $this->nc_member_customizable_notifications) . ') AND member_customizable<>\'\''), array());
     $arrOptions = array();
     $arrSelected = array();
     while ($objMessages->next()) {
         if (MemberMessages::memberHasSelected(\FrontendUser::getInstance()->id, $objMessages->id)) {
             $arrSelected[$objMessages->pid][] = $objMessages->id;
         }
         // Fetch tokens for parsing the option labels
         $objNotification = $objMessages->getRelated('pid');
         $objGateway = $objMessages->getRelated('gateway');
         $arrTokens = array_merge(array_combine(array_map(function ($key) {
             return 'message_' . $key;
         }, array_keys($objMessages->row())), $objMessages->row()), array_combine(array_map(function ($key) {
             return 'notification_' . $key;
         }, array_keys($objNotification->row())), $objNotification->row()), array_combine(array_map(function ($key) {
             return 'gateway_' . $key;
         }, array_keys($objGateway->row())), $objGateway->row()));
         $arrOptions[$objMessages->pid][$objMessages->id] = \StringUtil::parseSimpleTokens($this->nc_member_customizable_label ?: '##message_title## (##gateway_title##)', $arrTokens);
     }
     $objForm = new Form('tl_select_notifications', 'POST', function ($objHaste) {
         /** @noinspection PhpUndefinedMethodInspection */
         return \Input::post('FORM_SUBMIT') === $objHaste->getFormId();
     });
     foreach ($arrOptions as $k => $options) {
         /** @noinspection PhpUndefinedMethodInspection */
         $objForm->addFormField('notification_' . $k, array('label' => Notification::findByPk($objMessages->pid)->title, 'inputType' => $this->nc_member_customizable_inputType, 'options' => $options, 'eval' => array('mandatory' => $this->nc_member_customizable_mandatory), 'value' => !empty($arrSelected[$k]) ? $arrSelected[$k] : array()));
         // Add a validator
         // We check whether it is possible to send the message to the recipient by means of the gateway
         // E.g. a sms message requires a phone number set by the member which is not default
         $objForm->addValidator('notification_' . $k, function ($varValue, $objWidget, $objForm) use($k, $arrOptions) {
             if (empty($varValue)) {
                 return $varValue;
             }
             foreach ($varValue as $msg) {
                 /** @noinspection PhpUndefinedMethodInspection */
                 /** @var Message|\Model $objMessage */
                 $objMessage = Message::findByPk($msg);
                 /** @noinspection PhpUndefinedMethodInspection */
                 /** @var GatewayInterface|MessageDraftCheckSendInterface $objGateway */
                 $objGateway = $objMessage->getRelated('gateway')->getGateway();
                 if (!$objGateway instanceof MessageDraftCheckSendInterface) {
                     continue;
                 }
                 // Throw the error message as exception if the method has not yet
                 if (!$objGateway->canSendDraft($objMessage)) {
                     throw new \Exception(sprintf($GLOBALS['TL_LANG']['ERR']['messageNotSelectable'], $arrOptions[$k][$msg]));
                 }
             }
             return $varValue;
         });
     }
     $objForm->addSubmitFormField('submit', $GLOBALS['TL_LANG']['MSC']['saveSettings']);
     // Process form submit
     if ($objForm->validate()) {
         $arrData = $objForm->fetchAll();
         foreach ($arrData as $field => $notification) {
             if (strpos($field, 'notification_') !== 0) {
                 continue;
             }
             list(, $notificationId) = trimsplit('_', $field);
             // Delete
             foreach (array_diff((array) $arrSelected[$notificationId], (array) $notification) as $msg) {
                 /** @noinspection PhpUndefinedMethodInspection */
                 MemberMessages::findByMemberAndMessage(\FrontendUser::getInstance()->id, $msg)->delete();
             }
             // Create
             foreach (array_diff((array) $notification, (array) $arrSelected[$notificationId]) as $msg) {
                 /** @var MemberMessages|\Model $objMemberMessage */
                 $objMemberMessage = new MemberMessages();
                 $objMemberMessage->member_id = \FrontendUser::getInstance()->id;
                 $objMemberMessage->message_id = $msg;
                 $objMemberMessage->save();
             }
         }
     }
     $this->Template->form = $objForm->generate();
 }
    /**
     * Skip messages that are member customizable and were not selected by the member
     *
     * @param Message|\Model $objMessage
     * @param array          $arrTokens
     * @param string         $strLanguage
     * @param Gateway|\Model $objGateway
     *
     * @return bool
     */
    public function skipUnselectedMessages($objMessage, $arrTokens, $strLanguage, $objGateway)
    {
        $intMemberId = $arrTokens['member_id'];
        if (!$intMemberId) {
            return true;
        }
        // User did not customize their messages for this notification
        if (\Database::getInstance()->prepare(<<<SQL
\t\tSELECT n.id
FROM tl_nc_member_messages mm
INNER JOIN tl_nc_message m
  ON mm.message_id = m.id
INNER JOIN tl_nc_notification n
  ON m.pid = n.id
WHERE mm.member_id=?
  AND m.member_customizable<>''
SQL
)->execute($intMemberId)->numRows < 1) {
            return true;
        }
        // Message is member customizable but was not selected by the member
        if ($objMessage->member_customizable && !MemberMessages::memberHasSelected($intMemberId, $objMessage->id)) {
            return false;
        }
        return true;
    }