Conditional validation in Laravel
<p>How i validate the table, if privacy=public then all user has unique title but privacy=private then every single user has a unique title.</p>

<pre><code> ---------------------------
 user_id | title | privacy
 ---------------------------
    2    | hello | public
 ---------------------------
    2    | hello | private
 ---------------------------
    2    | hello | private   **Error**
 ---------------------------
    2    | hello | public    **Error**
 ---------------------------
    3    | hello | public    **Error**
 ---------------------------
    3    | hello | private   
 ---------------------------
</code></pre>