CRUDlex\SimpleFilesystemFileProcessor::createFile PHP Метод

    public function createFile(Request $request, Entity $entity, $entityName, $field)
    {
        $file = $request->files->get($field);
        if ($file) {
            $targetPath = $this->getPath($entityName, $entity, $field);
            if (!file_exists($targetPath)) {
                mkdir($targetPath, 0777, true);
            }
            $file->move($targetPath, $file->getClientOriginalName());
        }
    }