title: Relation or Pointer?
body: <p>If I have a class titled <code>Article</code>, and I want to add an <code>Author</code> column (which is class type <code>User</code>), should I use relation or pointer? There can only be one <code>Author</code>, but that <code>Author</code> can write many articles. I'm assuming pointer, but just making sure.</p>
  
  <p><img src="https://i.stack.imgur.com/LOpuN.png" alt="enter image description here"></p>
  
  <p>Thanks!</p>