title: Shall a Model class in CodeIgniter send back MySQL error messages as they are to the controller class?
body: <p>I'm writing a CRUD (Create Read Update Delete) model in the CI (CodeIgniter) framework.</p>
  
  <p>I ask, as security and accordance to the MVC paradigm, shall my Model send the eventual MySQL error messages as they are to the controller when they happen, knowing that they can contain table or column names, or, I  shall "map" these errors inside the model and communicate with the controller with my proper feed-backs.</p>