Show login errors in Community Auth

In this particular case, your best option is just to use javascript to disallow form submission if the fields are empty. It is for your benefit that the login error is not specific. For instance:

1) It is generally accepted that a login error should not say "The username does not exist", or "The email does not exist", or "The username was good but the password was bad".

2) If you do a little client side validation through javascript, it'll handle anything that you want with ease. Javascript is super easy, especially if using jQuery, so I recommend to do that.

Lastly, in general I am the only one that answers questions about Community Auth, since I'm the one that made it. I do work 2 jobs, so be patient when you ask a question, because it can sometimes be a while before I can answer (but I always do).

Expert Website Development - Temecula, CA
Community Auth For CodeIgniter 3