title: Use Rails model without database interaction
body: <p>Is there a way to use Rails model for validation only without interaction with the database?</p>
  
  <p>Would I generate model using console and use it with Active Record validations?</p>
  
  <p>I'm trying to use it to validate a CSV import, use Model validations, process then output back in another CSV format.</p>
  
  <p>This is done without database interaction but I thought for validation, using Model would be a good way to be less error prone.</p>