title: Rails. Necessary to simple_form 2 of the field combine and store in one field
body: <p>I'm novice developer.<br>
  There is a problem: it is necessary to simple_form 2 of the field combine and store in one field of the database table. How to do it?
  <br>Source code to the example I have. I'm just starting and do not know where to start.
  <br><br>
  <strong>UPDATE</strong><br>
  Reformulate the question. 
  In several fields there form two or more. These fields are to be stored in one database field, with share values ​​"-" sign. 
  Way serialize to help? Or the right to use any other way?</p>