使用 MongoMapper 创建 Rails 引擎

发布于 2024-12-25 22:38:26 字数 1198 浏览 2 评论 0原文

我正在尝试使用 MongoMapper 创建 Rails 3 引擎。我正在经历一个痛苦的世界，让它继续下去。这是我的模型：

module GoodComments
  class Comment
    include MongoMapper::Document

    key :comment,   String

  end
end

超级简单，我知道！我的 config/routes.rb：

GoodComments::Engine.routes.draw do
  resources :comments
end

我创建了 config/application.rb：

require File.expand_path('../boot', __FILE__)

module GoodComments
  class Application < Rails::Application
    config.generators do |g|
      g.orm :mongo_mapper    # :active_record
      g.template_engine :erb # :haml
      g.test_framework :rspec, :fixture => true, :views => false
      g.fixture_replacement :factory_girl, :dir => "spec/factories"
    end
  end
end

我运行了 railsgeneratescaffold_controllerComment -o mongo_mapper 并且我的控制器是生成的。当我运行服务器并转到 http://localhost:3000/good_comments/comments 时，出现错误：

LoadError in GoodComments::CommentsController#index

Expected /Users/shamoon/Sites/good_comments/ app/models/comment.rb 定义 Comment Rails.root：/Users/shamoon/Sites/good_comments/test/dummy

有帮助吗？

原文

I'm trying to create a Rails 3 Engine using MongoMapper. I'm having a world of pain getting it going. Here is my model:

module GoodComments
  class Comment
    include MongoMapper::Document

    key :comment,   String

  end
end

Super simple, I know! My config/routes.rb:

GoodComments::Engine.routes.draw do
  resources :comments
end

I created a config/application.rb:

require File.expand_path('../boot', __FILE__)

module GoodComments
  class Application < Rails::Application
    config.generators do |g|
      g.orm :mongo_mapper    # :active_record
      g.template_engine :erb # :haml
      g.test_framework :rspec, :fixture => true, :views => false
      g.fixture_replacement :factory_girl, :dir => "spec/factories"
    end
  end
end

I ran rails generate scaffold_controller Comment -o mongo_mapper and my controllers were generated. When I run my server and go to http://localhost:3000/good_comments/comments, I get an error:

LoadError in GoodComments::CommentsController#index

Expected /Users/shamoon/Sites/good_comments/app/models/comment.rb to define Comment
Rails.root: /Users/shamoon/Sites/good_comments/test/dummy

Any help?

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眼泪也成诗 2025-01-01 22:38:26

看起来您的控制器期望在 comment.rb 中有一个名为 Comment 的类，所以控制器可能需要在同一模块中运行？或者您只需指定一些非默认配置，或更具体地说明控制器应使用哪个模型。

另外，在我的 MongoMapper 应用程序中，我在 config/application.rb 顶部添加的行数比您添加的行数多：

require File.expand_path('../boot', __FILE__)

# from http://mongomapper.com/documentation/getting-started/rails.html
# replace:
# require 'rails/all'
# with:
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "rails/test_unit/railtie"
# Uncomment for asset pipelining in Rails 3.1
# require "sprockets/railtie"

It looks like your controller was expecting a class called Comment in comment.rb, so maybe the controller needs to be operating in the same module? Or you would just have to specify some non-default configurations or be more specific about which model the controller should use.

Also in my MongoMapper app I have a few more lines than you added to the top of config/application.rb:

require File.expand_path('../boot', __FILE__)

# from http://mongomapper.com/documentation/getting-started/rails.html
# replace:
# require 'rails/all'
# with:
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "rails/test_unit/railtie"
# Uncomment for asset pipelining in Rails 3.1
# require "sprockets/railtie"

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