title: Spatie Medialibrary Custom Custom Directory As Prefix
body: <p>I am using <code>spatie/laravel-medialibrary:8.0</code>.</p>
  
  <p>When I uploaded file, it was saved in <code>storage/public</code> directory.</p>
  
  <pre><code>1/filename.file_extension, 2/filename.file_extension...
  </code></pre>
  
  <p>I think <code>1, 2...</code> are ids of files.</p>
  
  <p>Is there any way to put different prefix directory according to user?</p>
  
  <p>For example, I want to put like this.</p>
  
  <pre><code>public/storage/user_id/1/filename.file_extension, 
  </code></pre>
  
  <p>I searched about it but couldn't find exact answer,</p>
  
  <p>Can anyone help me?</p>
  
  <p>Thanks</p>