Schema::getColumnListing PHP Method

        public static function getColumnListing($table)
        {
            return \Illuminate\Database\Schema\MySqlBuilder::getColumnListing($table);
        }

 public function import($entity)
 {
     $appHelper = new libs\AppHelper();
     $className = $appHelper->getNameSpace() . $entity;
     $model = new $className();
     $table = $model->getTable();
     $columns = \Schema::getColumnListing($table);
     $key = $model->getKeyName();
     $notNullColumnNames = array();
     $notNullColumnsList = \DB::select(\DB::raw("SHOW COLUMNS FROM `" . $table . "` where `Null` = 'no'"));
     if (!empty($notNullColumnsList)) {
         foreach ($notNullColumnsList as $notNullColumn) {
             $notNullColumnNames[] = $notNullColumn->Field;
         }
     }
     $status = \Input::get('status');
     $filePath = null;
     if (\Input::hasFile('import_file') && \Input::file('import_file')->isValid()) {
         $filePath = \Input::file('import_file')->getRealPath();
     }
     if ($filePath) {
         \Excel::load($filePath, function ($reader) use($model, $columns, $key, $status, $notNullColumnNames) {
             $this->importDataToDB($reader, $model, $columns, $key, $status, $notNullColumnNames);
         });
     }
     $importMessage = $this->failed == true ? \Lang::get('panel::fields.importDataFailure') : \Lang::get('panel::fields.importDataSuccess');
     return \Redirect::to('panel/' . $entity . '/all')->with('import_message', $importMessage);
 }