How to Encrypt data after validation in Ruby on Rails?

Question

I am using devise for authentication, register. Now i want to save emailId in MySQL in encrypted format. So i use gem 'aescrypt'.

My controller:

 def create
    @dashboard_user = DashboardUser.new(dashboard_user_params)
    @dashboard_user.created_by=current_dashboard_user.username
    @dashboard_user.company_id=current_dashboard_user.company_id
    active_ind = ""
    email = @dashboard_user.email

    if params["active"] == nil then
      active_ind = "0"
    else
      active_ind = "1"
    end

    @dashboard_user.active = active_ind
    @dashboard_user.email= AESCrypt.encrypt(email, "password")

    respond_to do |format|
      if @dashboard_user.save
        format.html { flash[:notice] = 'User successfully Created.' and redirect_to action: "index"}
      else
        @dashboard_user.email = email
        format.html { render :new }
      end
    end
  end

When i try to save user, it throws Email invalid. I removed validation for email in model. Even though same error exists. What problem it is? If there any way to encrypt data after validation?

Thanks in advance.

Answer 1

You can encrypt the data using using a method triggered by the after_validation callback. It is described here: http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html

Answer 2

On its model you can just declare like the example scenario below: E.g.:

after_validation :encrypt_cc_number, on: :create

It will validate then encrypt the credit car number on a create action.