Contao\Model::getClassFromTable PHP Method

    public static function getClassFromTable($strTable)
    {
        if (isset(static::$arrClassNames[$strTable])) {
            return static::$arrClassNames[$strTable];
        }
        if (isset($GLOBALS['TL_MODELS'][$strTable])) {
            static::$arrClassNames[$strTable] = $GLOBALS['TL_MODELS'][$strTable];
            // see 4796
            return static::$arrClassNames[$strTable];
        } else {
            $arrChunks = explode('_', $strTable);
            if ($arrChunks[0] == 'tl') {
                array_shift($arrChunks);
            }
            static::$arrClassNames[$strTable] = implode('', array_map('ucfirst', $arrChunks)) . 'Model';
            return static::$arrClassNames[$strTable];
        }
    }

 /**
  * @param $dc
  */
 public static function deleteDataRecord($dc)
 {
     // If this is not the backend than return
     if (TL_MODE != 'BE') {
         return;
     }
     // Check if there is an active record
     if ($dc instanceof DataContainer && $dc->activeRecord) {
         $intId = $dc->activeRecord->id;
         $strTable = $dc->table;
         $strModel = '\\' . Model::getClassFromTable($strTable);
         // Return if the class does not exist (#9 thanks to tsarma)
         if (!class_exists($strModel)) {
             return;
         }
         // Get object from model
         $objModel = $strModel::findByPk($intId);
         if ($objModel !== null) {
             $arrData = $objModel->row();
             if (is_array($arrData) && count($arrData) > 0) {
                 // Load current data container
                 Controller::loadDataContainer($strTable);
                 // Get tl_undo data
                 $objUndo = Database::getInstance()->prepare("SELECT * FROM tl_undo WHERE fromTable=? ORDER BY id DESC")->limit(1)->execute($dc->table);
                 $arrSet = $objUndo->row();
                 // Deserialize tl_undo data
                 $arrSet['data'] = deserialize($arrSet['data']);
                 foreach ($arrData as $strField => $varValue) {
                     $strInputType = $GLOBALS['TL_DCA'][$strTable]['fields'][$strField]['inputType'];
                     switch ($strInputType) {
                         case 'TranslationInputUnit':
                         case 'TranslationTextArea':
                         case 'TranslationTextField':
                             $intFid = $varValue;
                             if ($strInputType == 'TranslationInputUnit') {
                                 $arrDeserialized = deserialize($varValue);
                                 $intFid = $arrDeserialized['value'];
                             }
                             // Get translation values
                             $objTranslation = TranslationFieldsModel::findByFid($intFid);
                             if ($objTranslation !== null) {
                                 while ($objTranslation->next()) {
                                     $t = TranslationFieldsModel::getTable();
                                     // Add cross table record to undo data
                                     $arrSet['data'][$t][] = $objTranslation->row();
                                     // Delete translation
                                     $objTranslation->delete();
                                 }
                             }
                             break;
                     }
                 }
                 // Serialize tl_undo data
                 $arrSet['data'] = serialize($arrSet['data']);
                 // Update tl_undo
                 Database::getInstance()->prepare("UPDATE tl_undo %s WHERE id=?")->set($arrSet)->execute($objUndo->id);
             }
         }
     }
 }