Rails 4 - checkbox agreement validation fails on create new user registration using devise

Question

I'm trying to include a "accept terms of service" checkbox (called agreement) on a form. The app is using Devise for the user management.

views/devise/registrations/new.html.erb has:

<%= f.check_box :agreement, class: 'form-control' %>

The application_controller.rb has:

  def configure_permitted_parameters
    devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:agreement, :phone, :first_name, :last_name, :domain, :email, :password, :password_confirmation) }
  end

Then in the user.rb controller, it has

# neither of the below worked
# validates :agreement, :acceptance => true
validates :agreement, acceptance: true

If I view the data in the development.log, it shows the agreement field coming through correctly with a value of 1, which is (according to the Rails docs, the expected value for the validation):

Parameters: {"utf8"=>"✓", "authenticity_token"=>"jFg6+ZDM1qldh020lv/FQHxlgZkby2dhUbejjXurr4w=", "user"=>{"first_name"=>"Joe", "last_name"=>"Smith", "phone"=>"2098993344", "domain"=>"google.com", "email"=>"[email protected]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "agreement"=>"1"}, "commit"=>"Create User"} 

However, any time the form is submitted it shows an error message that "Agreement must be accepted", whether it's checked or not.

Any ideas on what this is caused by?

Answer 1

Try using this for your validation

validates :agreement, acceptance: { accept: true }

as per the Rails documentation

:accept - Specifies value that is considered accepted. The default value is a string “1”, which makes it easy to relate to an HTML checkbox. This should be set to true if you are validating a database column, since the attribute is typecast from “1” to true before validation.