where('model_type', '')->chunkById(50, function ($bimFiles) { foreach ($bimFiles as $bimFile) { $file = $bimFile->file; if ($file) { $bimFileBO = new BimFileBO($file->extension, $file->title); $bimFile->model_type = $bimFileBO->modelType; $bimFile->timestamps = false; $bimFile->save(); echo $bimFile->id . ' model_type is ' . $bimFileBO->modelType . PHP_EOL; } } }); } }