title: laravel 5.6 Eloquent One to Many Relationship on multiple tables
body: <p>I have some specific database structure as the below diagram </p>
  
  <p><a href="https://i.stack.imgur.com/mpbsw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mpbsw.jpg" alt="Database Structure"></a></p>
  
  <p>So basically one <strong>Part</strong> can have multiple specifications but those specifications are not exist in a known table. Specifications can be in any of the <strong>rsnf_part_specification</strong> , <strong>rgr_part_specification</strong> or <strong>dcd_part_specification</strong> tables. I need for find a way to know which table through the <strong>part_owner_short_code</strong> FK because its the specifications tables prefix <strong>rsnf,dcd or rgr</strong>.</p>
  
  <p>Is it possible to do this using Laravel 5.6 Eloquent Relationship ? </p>