轨道上的红宝石 - 找不到带有子域的商店 =

Question

我遇到以下问题：当我转到http://lvh.me:3000或http://www.lvh.me:3000，我得到这个错误：

找不到子域=的存储

app/controllers/application_controller.rb:8:在"set_current_store"中

使用子域，效果很好（所以如果我转到http://store.lvh.me，它工作得很好。只有根不起作用）。

这是我的代码：

url_helper.rb

module UrlHelper
  def with_subdomain(subdomain)
    subdomain = (subdomain || "")
    subdomain += "." unless subdomain.empty?
    [subdomain, request.domain].join
  end
end

application_controller.rb

class ApplicationController < ActionController::Base
  before_filter :set_current_store
  include UrlHelper
  protect_from_forgery
  private
    def set_current_store
      @current_store = Store.find_by_subdomain!(request.subdomains.first)
    end
end

routes.rb

  resources :stores
  constraints(Subdomain) do
    match '/' => "stores#show"
    resources :stores
    resources :pages, path: "strani"
  end
  root to: "stores#index"

子域.rb

class Subdomain
  def self.matches?(request)
    request.subdomain.present? && request.subdomain != "www"
  end
end

Answer 1

删除find_by_subdomain上的bang !并提供默认子域

例如：

@current_store = Store.find_by_subdomain(request.subdomains.first) || default_subdomain