OphCoTherapyapplication_Processor::generatePreviewPdf PHP Method

    public function generatePreviewPdf($controller)
    {
        Yii::app()->params['wkhtmltopdf_left_margin'] = '10mm';
        Yii::app()->params['wkhtmltopdf_right_margin'] = '10mm';
        $ec = $this->getElement('Element_OphCoTherapyapplication_ExceptionalCircumstances');
        if (!$ec) {
            throw new Exception("Exceptional circumstances not found for event ID {$this->event->id}");
        }
        $template_data = $this->getTemplateData();
        $html = '<link rel="stylesheet" type="text/css" href="' . $controller->assetPath . '/css/print.css" />';
        if ($ec->hasLeft()) {
            $left_template_data = $template_data + $this->getSideSpecificTemplateData('left');
            $html .= $this->getPDFContentForSide($controller, $left_template_data, 'left');
        }
        if ($ec->hasRight()) {
            $right_template_data = $template_data + $this->getSideSpecificTemplateData('right');
            $html .= $this->getPDFContentForSide($controller, $right_template_data, 'right');
        }
        $this->event->lock();
        if (!$this->event->hasPDF('therapy_application') || @$_GET['html']) {
            $wk = new WKHtmlToPDF();
            $wk->setDocuments(1);
            $wk->setDocRef($this->event->docref);
            $wk->setPatient($this->event->episode->patient);
            $wk->setBarcode($this->event->barcodeHTML);
            $wk->generatePDF($this->event->imageDirectory, 'event', 'therapy_application', $html, (bool) @$_GET['html'], false);
        }
        $this->event->unlock();
        if (@$_GET['html']) {
            return Yii::app()->end();
        }
        $pdf = $this->event->getPDF('therapy_application');
        header('Content-Type: application/pdf');
        header('Content-Length: ' . filesize($pdf));
        readfile($pdf);
    }

 /**
  * preview of the application - will generate both left and right forms into one PDF.
  *
  * @throws CHttpException
  */
 public function actionPreviewApplication()
 {
     $this->assetPath = Yii::app()->getAssetManager()->publish(Yii::getPathOfAlias('application.modules.' . $this->getModule()->name . '.assets'), false, -1);
     $service = new OphCoTherapyapplication_Processor($this->event);
     $service->generatePreviewPdf($this);
 }