这是我的 model

class Equipment::Accepting < ApplicationRecord
end

这是我的 controller

class Api::App::Equipment::AcceptingsController < Api::App::ApplicationController
end

当我在我的 controller 里调用 Equipment::Accepting 时，会告诉我

=>NameError: uninitialized constant Api::App::Equipment::AcceptingsController::Equipment

然后我试着在 console 里调用 Equipment::Accepting

=>Equipment::Accepting (call 'Equipment::Accepting.connection' to establish a connection)

成功了。然后我试着创建一些新的 model，然后在 controller 里调用 Approval::Flow

=> Approval::Flow(id: integer, apply_id: integer, timestamp: datetime, to_id: integer, message: string, pass: boolean, is_sync: boolean, code: string, created_at: datetime, updated_at: datetime)

很奇怪的一个问题，尝试了许多办法。能给我指点一下的话，不胜感激。