Test:Module 的未定义方法“新" [英] undefined method `new' for Test:Module

问题描述

您好，我遇到了命名空间冲突的问题.我有一个模型:测试和控制器 TestsController.服务器显示错误

Hello I have a problem of conflict of the namespace. I have a model: Test and controller TestsController. server displays an error

undefined method `new' for Test:Module

我阅读了这个问题 rails 模型

添加到 UserTest 模块中的模型 Test

added to the model Test in module UserTest

module UserTest
  class Test < ActiveRecord::Base
  ....
  end
end

并添加到控制器

class TestsController < ApplicationController

  def new
    @test = UserTest::Test.new
    @test.questions.build
    @title = "New test"
  end
 ...
end

服务器显示错误:未初始化的常量 TestsController::UserTest

阅读更多内容后，我意识到可能需要添加 require 或包含一个控制器.只有我不明白该怎么做.请告诉我.

after reading more I realized that probably need to add require or include a controller. Only I do not understand how to do it. please tell me.

推荐答案

Rails 中的约定是转换文件中的类名和目录中的模块名.因此，如果您将 UserTest::Test 类放在 app/model 目录中的 test.rb 文件中，则自动加载无法获取您的类.因为搜索 app/model/user_test/test.rb 文件.

The convention in Rails is to convert your Class name in file and your module name in directory. So if you put your UserTest::Test class in test.rb file in your app/model directory, the autoload failed to get your class. Because search on app/model/user_test/test.rb file.

因此，您可以通过在文件顶部添加 require 来强制"控制器中的 require.如果您将类放在 test.rb 中，则要求是:require 'test.rb'

So you can "force" the require in your Controller by adding a require in top of your file. The require if you put your class in your test.rb is : require 'test.rb'

要知道如何定义您的需求，请考虑您的应用程序的 LOAD_PATH 添加 app/model 目录.所以里面的都可以通过要求目录名和文件名直接添加.

To know how define your require is to think the LOAD_PATH of your application add app/model directory. So all inside can be add directly by requiring the directory name and file name.

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