NameError（未初始化的常量 ShopsController::ShopService - Ruby on Rails

Question

I am getting this error, don't know why.

NameError (uninitialized constant ShopsController::ShopService

My controller name is ShopsController I've made a service /app/services/shop_service.rb The name of the class inside the service is ShopService I'm using it inside a controller action the following way:

flag = ShopService.new.save_categories(@shop, params[:category])

The service code is written below

class ShopService  
  def initialize(shop = nil, services = nil); end
  def save_categories(shop, services)
    debugger
    flag = true
    services.drop(1).each do |service|
      category = Category.new(service: service, shop_id: shop.id)
      flag = false unless category.save
    end
    flag
  end
end

Answer 1

Try to call the service like that: flag = ::ShopService.new.save_categories(@shop, params[:category]) on the controller, this should work

Edit:

Also, check that you are loading the services path in the config/application.rb , on the config.autoload_paths