How to validate user input in RoR?

Question

I know that the RoR can do the validation in the models. But I want to confirm the user's password in the views. I means, it show two textfield for user to type password twice to ensure the user type the password correct, but in the database I only store one value. How can I handle it in the RoR?

Answer 1

In your model do:

validates_confirmation_of :password

In your view do:

<%= form.password_field :password %>
<%= form.password_field :password_confirmation %>

This is using the built in rails confirmation validation. It's will add the virtual accessor for you.