title: Relation between one table records
body: <p>I have a User table.Some Users have a manager which is a user too.
  I need <code>one to many</code> relationship between users, but I don't want to create a new table for that.</p>
  
  <p>I can use <code>manager_id</code> to relate users to their manager.</p>
  
  <p><strong>Now my question</strong></p>
  
  <p>Is it a right way to do some thing like that? If no, so what's the best way?</p>
  
  <p><hr>
  <em>I'm using laravel and sqlite, relation is one to many</em></p>