转换为Mongoid导致错误:无法加载数据库配置-没有这样的文件- [config/database.yml]

Question

免责声明：我知道有一些关于这个问题的问题，但是我遵循了所有的答案。张贴在这些问题上，我仍然收到错误。

我有一个rails应用程序安装使用Postgres，并试图切换到蒙哥德。以下是我所采取的步骤：

• drop数据库
• 添加'mongoid', '~> 7.0.5'和删除'pg' gem
• 删除对active_record和active_storage的所有引用
• 移除弹簧宝石(已知会引起问题)
• 更新所有模型以与mongodb兼容
• 删除config/database.yml和/db目录
• 切换devise和database-cleaner以使用mongoid

在完成上述所有步骤之后，启动服务器时仍然会出现错误：

Could not load database configuration - No such file - [config/database.yml]

这没有任何意义，因为rails根本不应该加载活动记录，因此不应该加载数据库配置文件。

如果有人能调试这个问题，我会非常感激的。

您可以查看mongodb

编辑：i禁用了bootsnap和devise，并得到了堆栈跟踪如下：(看起来像active_record is still being loaded)

Puma caught this error: Cannot load database configuration:
Could not load database configuration. No such file - ["config/database.yml"] (RuntimeError)
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/railties-6.0.3.2/lib/rails/application/configuration.rb:241:in `database_configuration'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activerecord-6.0.3.2/lib/active_record/railtie.rb:200:in `block (2 levels) in <class:Railtie>'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:71:in `class_eval'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:71:in `block in execute_hook'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:61:in `with_execution_control'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:66:in `execute_hook'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:51:in `each'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activerecord-6.0.3.2/lib/active_record/base.rb:327:in `<module:ActiveRecord>'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activerecord-6.0.3.2/lib/active_record/base.rb:27:in `<top (required)>'
/Users/afamily/.rvm/rubies/ruby-2.7.1/lib/ruby/gems/2.7.0/gems/zeitwerk-2.3.0/lib/zeitwerk/kernel.rb:23:in `require'
/Users/afamily/.rvm/rubies/ruby-2.7.1/lib/ruby/gems/2.7.0/gems/zeitwerk-2.3.0/lib/zeitwerk/kernel.rb:23:in `require'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activerecord-6.0.3.2/lib/active_record/query_cache.rb:31:in `run'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/execution_wrapper.rb:28:in `before'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:428:in `block in make_lambda'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:200:in `block (2 levels) in halting'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:605:in `block (2 levels) in default_terminator'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:604:in `catch'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:604:in `block in default_terminator'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:201:in `block in halting'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:513:in `block in invoke_before'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:513:in `each'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:513:in `invoke_before'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/callbacks.rb:134:in `run_callbacks'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/execution_wrapper.rb:111:in `run!'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/execution_wrapper.rb:73:in `block in run!'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/execution_wrapper.rb:70:in `tap'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/activesupport-6.0.3.2/lib/active_support/execution_wrapper.rb:70:in `run!'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/executor.rb:12:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/static.rb:126:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/rack-2.2.3/lib/rack/sendfile.rb:110:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/host_authorization.rb:82:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/webpacker-4.2.2/lib/webpacker/dev_server_proxy.rb:23:in `perform_request'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/rack-proxy-0.6.5/lib/rack/proxy.rb:57:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/railties-6.0.3.2/lib/rails/engine.rb:527:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/puma-4.3.5/lib/puma/configuration.rb:228:in `call'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/puma-4.3.5/lib/puma/server.rb:713:in `handle_request'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/puma-4.3.5/lib/puma/server.rb:472:in `process_client'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/puma-4.3.5/lib/puma/server.rb:328:in `block in run'
/Users/afamily/.rvm/gems/ruby-2.7.1/gems/puma-4.3.5/lib/puma/thread_pool.rb:134:in `block in spawn_thread'

Answer 1

我认为这是与https://github.com/rails/spring/issues/601相同的问题，就您的情况而言，这个问题源自于以下设计：

/home/sandbox/agilely/vendor/bundle/ruby/2.7.0/gems/devise-4.7.2/lib/devise/models/confirmable.rb:52:in `block in <module:Confirmable>'                                                          

如果您从应用程序中删除了devise，并且能够成功地加载控制台，我建议将此问题报告给devise。