protected function fillExcel(PHPExcel $excel, aPollPoll $poll, aPollBaseForm $fields_form, aPollAnswerForm $answer_form)
 {
     // loading helpers
     sfContext::getInstance()->getConfiguration()->loadHelpers('a');
     // file properties
     $excel->getProperties()->setCreator("Buddies Sàrl")->setLastModifiedBy($this->getUser()->getGuardUser()->getName())->setTitle(sprintf('Poll %s answers export', $this->poll->getTitle()))->setSubject(sprintf('Poll %s answers export', $this->poll->getTitle()))->setDescription('Export generated at ' . date('l d F Y H:i:s'));
     // Header
     $names = array(a_('Id'), a_('Posted from'), a_('Submission language'), a_('Submission date'));
     $excel->setActiveSheetIndex(0);
     $column = 'A';
     $row = 1;
     $font = 'Arial';
     $font_size = 10;
     // aPollAnswer fields
     foreach ($names as $name) {
         $cell = $column . $row;
         $excel->getActiveSheet()->setCellValue($cell, $name);
         $excel->getActiveSheet()->getColumnDimension($column)->setAutoSize(true);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setName($font);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setSize($font_size);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setBold(true);
         $column++;
     }
     // aPollAnswerField fields
     foreach ($fields_form->getFieldsToSave() as $field) {
         $cell = $column . $row;
         $excel->getActiveSheet()->setCellValue($cell, $fields_form->getWidget($field)->getLabel());
         $excel->getActiveSheet()->getColumnDimension($column)->setAutoSize(true);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setName($font);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setSize($font_size);
         $excel->getActiveSheet()->getStyle($cell)->getFont()->setBold(true);
         $column++;
     }
     // answers
     $answer_fields_to_report = array('id', 'remote_address', 'culture', 'created_at');
     $row = 1;
     foreach ($poll->getAnswers() as $answer) {
         $column = 'A';
         $row++;
         foreach ($answer_fields_to_report as $field) {
             $cell = $column . $row;
             $excel->getActiveSheet()->setCellValue($cell, aPollToolkit::renderFormFieldValue($answer_form, $answer_form[$field], $answer->get($field)));
             $excel->getActiveSheet()->getStyle($cell)->getFont()->setName($font);
             $excel->getActiveSheet()->getStyle($cell)->getFont()->setSize($font_size);
             $column++;
         }
         // building array of answer fields
         $answer_fields = $answer->getFields();
         $fields = array();
         foreach ($answer_fields as $field) {
             $fields[$field->getName()] = $field->getValue();
         }
         // writing values to excel
         foreach ($fields_form->getFieldsToSave() as $name) {
             $cell = $column . $row;
             if (isset($fields[$name])) {
                 $fields_form_field = $fields_form[$name];
                 $excel->getActiveSheet()->setCellValue($cell, aPollToolkit::renderFormFieldValue($fields_form, $fields_form_field, $fields[$name]));
                 $excel->getActiveSheet()->getStyle($cell)->getFont()->setName($font);
                 $excel->getActiveSheet()->getStyle($cell)->getFont()->setSize($font_size);
             }
             $column++;
         }
     }
     $excel->setActiveSheetIndex(0);
     return $excel;
 }
 static function sendNotificationEmail($name, sfMailer $mailer, aPollPoll $poll, aPollAnswer $answer)
 {
     if (!self::getSendNotification($name)) {
         return false;
     }
     sfContext::getInstance()->getConfiguration()->loadHelpers('Partial');
     $from = self::isUserOrEmail(self::getNotificationEmailFrom($name), true);
     $to = self::isUserOrEmail(self::getNotificationEmailTo($name), true);
     if (is_null($to)) {
         throw new sfException('No destination email defined. Cannot send a notification.');
     }
     $form_name = aPollToolkit::getPollFormName($poll->getType());
     $arguments = array('poll' => $poll, 'poll_form' => new $form_name($answer->getFieldsAsArray()), 'answer' => $answer);
     $message = $mailer->compose($from, $to);
     //$message->setContentType("text/html");
     $message->setSubject(get_partial(self::getNotificationEmailTitlePartial($name), $arguments));
     $body = get_partial(self::getNotificationEmailBodyPartial($name), $arguments);
     $message->addPart(self::createPlainTextBody($body), 'text/plain');
     $message->addPart(self::createHtmlBody($poll->getType(), $body), 'text/html');
     $mailer->send($message);
     return true;
 }