NoMethodError in controller#new - undefined method - ruby-on-rails

Question

I'm getting a NoMethodError in the new action of my business_controller.
It seems to be acessing the #business object for a form in my view and the error occurs then:
undefined method `businesses_path' for
Here is my new method:
def new
if Business.where(:user_id => current_user.id).first.blank?
#business = Business.new
else
redirect_to user_businesses_path(current_user.id)
end
end
My routes are:
resources :users do
resources :businesses
member do
get 'account'
post 'payment'
put 'update_password'
get 'membership'
end
end
mind.blank's suggested changes
before_filter :check_if_user_has_business, :only => :index
def new
#business = Business.new
end
private
def check_if_user_has_business
redirect_to new_user_business_path(current_user) unless current_user.business
end

Answer 1

Do you have a route businesses_path or only user_businesses_path? If you only have the second one then you should specify that URL in your form:
<%= form_for #business, url: user_businesses_path do |f| %>
Also, if you have the correct associations set up, then you can write your if statement as follows:
if current_user.business.nil? # since it's a has_one association
Here's how I would write it:
Class BusinessesController < ApplicationController
before_filter :check_if_user_has_business, only: :new
def new
#business = Business.new
end
private
def check_if_user_has_business
redirect_to user_businesses_path(current_user) if current_user.business
end
end