Devise and helper for custom form builder

Question

I created custom form builder for devise sign up form.

Form looks like this, and works fine:

<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name), builder: BootstrapFormBuilder) do |f| 
  <%= f.text_field :username, :autofocus => true %>
  <%= f.email_field :email %>
  <%= f.password_field :password %>
  <%= f.password_field :password_confirmation %>

  <%= f.submit "Sign up", class: "btn btn-default" %>
<% end %>

Now I want to create helper named bootstrap_form_for . In application helper I wrote (just to test it):

module ApplicationHelper
  def bootstrap_form_for(record, options = {}, &block)
    form_for(record, options = {}, &block)
  end
end

When instead of form_for I insert bootstrap_form_for I get error: undefined method 'users_path' for #<#<Class:0x007f9eb40bc728>:0x007f9eb40bb9b8> in this bootstrap_form_for line.

Error page title: NoMethodError in Devise::Registrations#new

Do you know why?

Answer 1

Problem was here:

module ApplicationHelper
  def bootstrap_form_for(record, options = {}, &block)
    form_for(record, options = {}, &block)
  end
end

It should be:

module ApplicationHelper
  def bootstrap_form_for(record, options = {}, &block)
    form_for(record, options, &block)
  end
end