Devise custom messages when validation fails

Question

I'm using devise as authentication engine in my app. Is there any way to use custom messages when devise validation fails. Devise provides me with the following message when the password is blank: Password can't be blank, but i need another message. How can i do it?

Answer 1

ActiveRecord en.yml is the answer I would suggest if you want to change the Validation Message for Devise

Here is how the en.yml should look like

en:
  activerecord:
    errors:
      models:
        user:
          attributes:
            email:
              blank: "Please Specify an Email id"
              taken: "Please use a different Email id"
              invalid: "Please Specify a valid Email id"
            password:
              blank: "Please Specify a Password"
              confirmation: "Password does not match"
            password_confirmation:
              blank: "Please Specify a Password Confirmation"
            first_name:
              blank: "Please Specify First Name"
            last_name:
              blank: "Please Specify Last Name"
        pdf:
          attributes:
            name:
              blank: "Please Specify name to PDF"
              taken: "Please use different name for PDF"
            attachment:
              blank: "Please Upload a PDF Attachment"
        data_element:
          attributes:
            name:
              blank: "Please give Element a desired name"
              taken: "Already Created Element with given name"
            color:
              blank: "Please assign a color to Element"
        template:
          attributes:
            name:
              blank: "Please Specify a Name"
              taken: "Please use a different name"

I advice you to define this way instead of customizing devise validation module

Because if you follow the above approach, it would be possible that you would skip a validation a place or two

for Example I the remove the above devise validation module and then substitue your own in User Model

then all the validation would work for but you would miss the validation in Change Password

There by resulting your to login even though the password was never supplied and never given

Keep a loop of that too

Cheer

Regards

Answer 2

Please refer to the URL below.

http://railscasts.com/episodes/210-customizing-devise?view=asciicast

If the user is signing in, you can edit all the error messages in devise.en.yml under config/locales.

If you're signing up, Devise provides its own validations out of the box without any customizing. If you want to customize it, you can edit the User model.

Find devise :validatable and remove the :validatable option. After which, you should be able to use the usual rails validations. Note that this will cause you to have to do all the validations yourself.

validates_presence_of :password, :message=>"Your custom error message!"

Some usual validations:

  validates_confirmation_of :password
  validates_presence_of :password, :on => :create
  validates_presence_of :email
  validates_uniqueness_of :email