顺便提一句，在定义类时，rails 不提倡使用“限定常量”的形式，而是使用“相对常量”的形式，否则对于 classic 的 autoloader，有时会产生诡异的类加载错误。因此 class Api::V1::Com::OptionsController 最好能写成

module Api::V1::Com
  class OptionsContoller < Api::V1::Com::BaseController
  end
end

对于 Zeitwerk 的 autoloader，这两种写法没有区别

那就需要更多的信息了，坑可能在其他地方。rails 的常量自动加载机制已经变过几次了。随手试了下，这点代码信息在 rails 6 上没有复现问题。

错误信息就是答案

Unable to autoload constant Api::V1::Com::OptionsController, expected /mnt/workspaces/rails_projects/reviewservice/app/controllers/api/v1/com/options_controller.rb to define it

翻译：不能自动加载常量 Api::V1::Com::OptionsController，期望在 /mnt/workspaces/rails_projects/reviewservice/app/controllers/api/v1/com/options_controller.rb 中去定义这个常量。

类名与文件层次不对应

rails_param 这个 gem 倒是内置了你要的效果，在 action 中使用param! :tag_ids, Array 就能把逗号分隔的参数转为数组。不过单纯为了这个功能而引入一个 gem 有点划不来，可以考虑自己手动封装个类似的方法。

写成这样也 ok。但为什么不直接传数组勒

no wonder some parts are so slow...

@woto From what I see, there are few foreign developers in China because of the salary and language. And ruby is not very popular in China. As a result, there is only one or two recruitment information per month in RubyChina; you can see it here.

The good news is that Chinese companies and the government don't care about your nationality. They will NOT ban you because of Russian citizenship.

It seems you are a very seasoned developer, that's great; I think many employers would like to contact you if you can speak some Chinese. I know some companies spend years finding a good rails developer.

A little more suggestion

1. This forum supports markdown. Maybe you can use it to make your post more formal. And please put the important information about your skills and experiments in the post itself, not only in the replies.
2. You can try to append "俄国资深全栈工程师寻远程工作" to your title, these Chinese characters mean "Russian seasoned full-stack developer looking for a remote job". This would make your post look more meaningful on the index page in my opinion.
3. Usually, there are far more people in RubyChina on weekdays than on weekends. So you may wait until Monday or later to get more replies.
4. You can try to look for some information in Japan's forum. They are very lacking developers, as I know.

I hope here will help you.

This was the first time I knew that a European developer was looking for a job in China. It seems the world is changing .

Although I can't help too much, I suggest you leave more information to help recruiters in RubyChina get to know you better, such as your working experience, skill stack, your Github, and so on.

我读 unless 的逻辑的时候脑子里会自动翻译成 if !xxx

醪糟

边喝酒边敲代码，细想下还有点诗意啊

要用文件系统来存附件的话，docker 容器应该要配个数据卷吧。

点赞。当初在 BOSS 上聊过，感觉老哥招人还是挺有诚意。不过因为 BOSS 的消息丢失没有看到面试消息（顺便吐槽下 BOSS 有时候真坑），于是去了另一家。没想到现在还在招人

试试 asdf。我现在逐步用 asdf 取代 rvm，主要本地环境中的 python，nodejs，ruby 都需要个版本管理工具，恰好 asdf 都支持，正好统一了

排名改了之后俺也上榜了。激动

我当时也遇到了这个问题。重新设置 config.file_watcher = ActiveSupport::FileUpdateChecker 后，改了 ruby 代码也能正常同步，但是 js 文件一直不能自动编译。迁移到 wsl 内部文件系统就又快又正常了

谢了老哥，果然有这样的 gem

好总结。以前试过这种方案，觉得稍微有点 hack 就没这么整 。

捉个虫：

tag_ids = ActsAsTaggableOn::Tag.where(name: 'Rails').pluck(:id)

应该是

tag_ids = ActsAsTaggableOn::Tag.where(name: tag_name).pluck(:id)

顺便问一下楼主：ActsAsTaggableOn::Tag 是在模型下建的命名空间么，还是用的 gem 的要求

顺手在 rails 6.1.1 上试了下，完全没复现。一切正常

老哥，我感觉你链接都贴错了

module Pipline
  def self.included(base)
    class << base
      attr_accessor :seg_column_name
    end
  end
end

class A
  include Pipline
  self.seg_column_name ='a'
end

不懂就问：数仓具体是干啥的

楼上老哥这么一提，我倒是想起那个赌博老哥了，连载好多年，中途也是培训上岸，最后好像忍不住又亏回去了，大风大浪的故事。

成年人全都要，先搞 rails 后搞 go

没有必要了吧。除非你打算把 docker 当虚拟机用。。。我见过在 docker 里先装 linux，再装 rbenv，再装 ruby 的情况（当然还有一大堆依赖），整个镜像大概 4G。完全不理解这样搞的好处。

没看到 ruby 代码勒？

https://ruby-china.org/topics/35195

楼主敢写这么多东西出来，我还是相信楼主的水平

希望楼主能把一些高级、架构课程写一些样章出来。直接扔几千块钱万一听不懂咋整

谢谢回复，因为是在 wsl2 里开发，所以没有把应用放在 docker。你说的第二点倒是很有启发，难怪 vscode 每次都要提醒我

不懂就问：将应用放在宿主机，数据库、redis 之类的依赖放 docker，这种开发模式有什么风险么