By Pass Devise Password requirement for single attribute update - ruby-on-rails-4

Question

Currently my application is using devise and my users are required to enter a password when updating their profile.
I am working on implementing an additional field to my user's table which remembers their sidebar navigational preference (expanded or collapsed). For testing, I setup a boolean field called "menu_collapsed" which is set to "false" by default.
I am trying to have this value updated to "true" remotely when the user decides to condense the sidebar menu.
Index
<li><%= link_to('Toggle', toggle_menu_preference_user_path(#user), :method => :put) %></li>
Routes
resources :users do
member { put :toggle_menu_preference }
end
Users Controller
def toggle_menu_preference
#user = current_user
#user.menu_collapsed = !#user.menu_collapsed
#user.save
end
Application Controller
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:first_name, :last_name, :email, :account_id, :account_name, :password, :password_confirmation) }
devise_parameter_sanitizer.for(:account_update).concat([:name])
end
When I click on the link, it will process the request but I hit a wall with Devise wanting the user to include their password.
Is there a way to by pass the requirement for a password just for this user attribute?

Answer 1

This seems to work like a charm!
Tested on local host as well as Heroku
Application Controller (added :menu_collapsed) to sanitizer
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:first_name, :last_name, :email, :account_id, :account_name, :password, :password_confirmation) }
devise_parameter_sanitizer.for(:account_update).concat([:name, :menu_collapsed])
end
Routes
resources :users do
member { put :toggle_menu_preference }
end
User Controller
def menu_preference
#user = current_user
#user.menu_collapsed = !#user.menu_collapsed
#user.save
if #user.menu_collapsed
render :nothing => true
else
render :nothing => true
end
end
View
<%= link_to menu_preference_user_path(current_user), id: "layout-condensed-toggle", remote: true do %>
<div class="iconset top-menu-toggle-dark"></div>
<% end %>