狂欢宝石导轨中的NameError（未初始化的常量......）答案

【问题标题】：NameError (uninitialized constant ...) in spree gem rails狂欢宝石导轨中的NameError（未初始化的常量......）
【发布时间】：2015-11-01 06:54:52
【问题描述】：

我定义了一个控制器： spree/admin/payment_members_controller.rb

module Spree
  module Admin
    class PaymentMembersController < ResourceController
      def index
      end 
    end
  end
end

在文件配置/路由中

Spree::Core::Engine.routes.append do
  namespace :admin do
    resources :payment_members
  end
end

路线：

admin_payment_members_path  GET  /admin/payment_members(.:format)   spree/admin/payment_members#index
                            POST /admin/payment_members(.:format)   spree/admin/payment_members#create
new_admin_payment_member_path   GET /admin/payment_members/new(.:format)    spree/admin/payment_members#new
edit_admin_payment_member_path  GET /admin/payment_members/:id/edit(.:format)   spree/admin/payment_members#edit
admin_payment_member_path   GET /admin/payment_members/:id(.:format)    spree/admin/payment_members#show
                            PATCH   /admin/payment_members/:id(.:format)    spree/admin/payment_members#update

当我在浏览器中访问网址“http://localhost:3000/admin/payment_members”（索引）时：在控制台中：

Processing by Spree::Admin::PaymentMembersController#index as HTML
NameError (uninitialized constant Spree::PaymentMember):
  activesupport (4.1.6) lib/active_support/inflector/methods.rb:253:in `const_get'
  activesupport (4.1.6) lib/active_support/inflector/methods.rb:253:in `block in constantize'
  ..........

请告诉我，如何解决这个错误？

【问题讨论】：

标签： ruby-on-rails ruby ruby-on-rails-4 ruby-on-rails-3.2

【解决方案1】：

它会根据您在ResourceController 中使用before_filter 的控制器名称尝试load the resource。你创建了Spree:: PaymentMember吗？

我的建议是你要么创建Spree::PaymentMember(app/models/spree/payment_member.rb) 要么覆盖PaymentMembersController 中的load_resource 方法。

【讨论】：