/**
  * Create a variant of the model currently loaded.
  *
  * @param DC_General $objDC The data container holding the current model.
  *
  * @return void
  */
 public function createvariant(DC_General $objDC)
 {
     // Check if table is editable.
     if (!$objDC->isEditable()) {
         $this->log('Table ' . $objDC->getTable() . ' is not editable', 'DC_General - Controller - edit()', TL_ERROR);
         $this->redirect('contao/main.php?act=error');
     }
     // Load fields.
     $objDC->loadEditableFields();
     $objDC->setWidgetID($objDC->getId());
     // Check if we have fields.
     if (!$objDC->hasEditableFields()) {
         $this->redirect($this->getReferer());
     }
     // Load rich text editor.
     $objDC->preloadTinyMce();
     // Set buttons.
     $objDC->addButton('save');
     $objDC->addButton('saveNclose');
     // Load record from data provider.
     $objDBModel = $objDC->getDataProvider()->createVariant($objDC->getDataProvider()->getEmptyConfig()->setId($objDC->getId()));
     if ($objDBModel == null) {
         $objDBModel = $objDC->getDataProvider()->getEmptyModel();
     }
     $objDC->setCurrentModel($objDBModel);
     // Check if we have a auto submit.
     if ($objDC->isAutoSubmitted()) {
         // Process input and update changed properties.
         foreach (array_keys($objDC->getFieldList()) as $key) {
             $varNewValue = $objDC->processInput($key);
             if ($objDBModel->getProperty($key) != $varNewValue) {
                 $objDBModel->setProperty($key, $varNewValue);
             }
         }
         $objDC->setCurrentModel($objDBModel);
     }
     // Check submit.
     if ($objDC->isSubmitted() == true) {
         // @codingStandardsIgnoreStart - we know that access to $_POST is discouraged.
         if (isset($_POST['save'])) {
             $this->getDC()->updateModelFromPOST();
             // Process input and update changed properties.
             if ($this->doSave($objDC) !== false) {
                 // Call the on create callbacks.
                 $objDC->getCallbackClass()->oncreateCallback($objDBModel->getID(), $objDBModel->getPropertiesAsArray());
                 // Log the creation.
                 $this->log(sprintf('A new entry in table "%s" has been created (ID: %s)', $objDC->getTable(), $objDBModel->getID()), 'DC_General - Controller - createvariant()', TL_GENERAL);
                 // Redirect to edit mode.
                 $this->redirect($this->addToUrl('id=' . $objDBModel->getID() . '&act=edit'));
             }
         } elseif (isset($_POST['saveNclose'])) {
             $this->getDC()->updateModelFromPOST();
             // Process input and update changed properties.
             if ($this->doSave($objDC) !== false) {
                 setcookie('BE_PAGE_OFFSET', 0, 0, '/');
                 // @codingStandardsIgnoreStart - we know that access to $_SESSION is discouraged.
                 $_SESSION['TL_INFO'] = array();
                 $_SESSION['TL_ERROR'] = array();
                 $_SESSION['TL_CONFIRM'] = array();
                 // @codingStandardsIgnoreEnd
                 $this->redirect($this->getReferer());
             }
         }
         // Maybe Callbacks?
     }
 }