Updating Roles in rolify using ActiveAdmin

Question

Using Rails 4.0, ActiveAdmin, Rolify and CanCan, Adding and removing user roles via the activeadmin panel does not save (commit to database).

The my ActiveAdmin User and User Model look okay as I can list all the roles that apply to a user using check_boxes. Although when adding any roles or removing any roles via the checkboxes the changes do not get applied.

I get a notification that the user was updated successfully but as I look through the database or render the page, the roles have not been updated.

How can I get the roles to update when the form is saved?

Edit:

Using Devise also.

Answer 1

The solution here is to allow the ActiveAdmin controller to update the role ids related to the user.

ActiveAdmin.register User do

  permit_params :email, :password, :password_confirmation, role_ids: []

Here's a form that shows a check box for each global role.

  form do |f|
    f.inputs "User Details" do
      f.input :email
      f.input :password
      f.input :password_confirmation
      f.input :roles, as: :check_boxes
    end
    f.actions
  end

While we're at it, we might as well make it possible to update the user without entering their password:

  # Allow form to be submitted without a password
  controller do
    def update
      if params[:user][:password].blank?
        params[:user].delete "password"
        params[:user].delete "password_confirmation"
      end

      super
    end
  end

Put all of this in the app/admin/user.rb.