title: How can I filter the auto populate when editing a form in Rails?
body: <p>In Rails, when you go to the edit action, it automatically pulls the information from the models and populates the form. If I had a CRUD that saves sensitive information, for example password or ssn, how can I filter the values so that it doesn't just show it in plaintext when editing the form? </p>
  
  <p>I was going to change the value in the controller by setting it to <code>****</code>, but the potential risk there is people may submit the form and it will update the SSN to <code>****</code>.</p>
  
  <p>I'm not referring to filtering the params so it doesn't show up in console (config.filter_parameters).</p>