/**
  * @param string $collectionName
  * @param string $diskName
  *
  * @return \Spatie\MediaLibrary\Media
  *
  * @throws FileCannotBeAdded
  * @throws \Spatie\MediaLibrary\Exceptions\FileCannotBeAdded
  */
 public function toCollectionOnDisk(string $collectionName = 'default', string $diskName = '')
 {
     if (!$this->subject->exists) {
         throw FileCannotBeAdded::modelDoesNotExist($this->subject);
     }
     if (!is_file($this->pathToFile)) {
         throw FileCannotBeAdded::fileDoesNotExist($this->pathToFile);
     }
     if (filesize($this->pathToFile) > config('laravel-medialibrary.max_file_size')) {
         throw FileCannotBeAdded::fileIsTooBig($this->pathToFile);
     }
     $mediaClass = config('laravel-medialibrary.media_model');
     $media = new $mediaClass();
     $media->name = $this->mediaName;
     $media->file_name = $this->fileName;
     $media->disk = $this->determineDiskName($diskName);
     $media->collection_name = $collectionName;
     $media->size = filesize($this->pathToFile);
     $media->custom_properties = $this->customProperties;
     $media->manipulations = [];
     $media->fill($this->properties);
     $this->subject->media()->save($media);
     $this->filesystem->add($this->pathToFile, $media, $this->fileName);
     if (!$this->preserveOriginal) {
         unlink($this->pathToFile);
     }
     return $media;
 }
 public function toCollectionOnDisk($collectionName = 'default', $diskName = '')
 {
     if (!is_file($this->pathToFile)) {
         throw new FileDoesNotExist();
     }
     if (filesize($this->pathToFile) > config('laravel-medialibrary.max_file_size')) {
         throw new FileTooBig();
     }
     $media = new Media();
     $media->name = $this->mediaName;
     $media->file_name = $this->fileName;
     $media->disk = $this->determineDiskName($diskName);
     $media->collection_name = $collectionName;
     $media->size = filesize($this->pathToFile);
     $media->custom_properties = $this->customProperties;
     $media->manipulations = [];
     $this->subject->media()->save($media);
     $this->fileSystem->add($this->pathToFile, $media, $this->fileName);
     if (!$this->preserveOriginal) {
         unlink($this->pathToFile);
     }
     return $media;
 }