• active_record
• rails
• active_support/core_ext/object/try
• active_model/railtie
• action_controller/railtie
• active_record/railties/console_sandbox
• active_record/base
• active_record/base
• active_record/railties/controller_runtime
• active_record/railties/job_runtime
• active_record/message_pack

• 模块 ActionDispatch
• 模块 ActiveRecord
• 模块 ActiveRecord::ConnectionAdapters
• 模块 ActiveRecord::Encryption
• 模块 ActiveRecord::MessagePack
• 模块 ActiveRecord::Tasks
• 模块 ActiveSupport
• 模块 Rails
• 类 ActiveRecord::Migration