如何解决Rails 6 Zeitwerk“弃用警告:初始化自动加载常量......”但我不知道在哪里?
我发誓我已经阅读了文档并且我认为我对这些原则有基本的了解,但是我终其一生都无法弄清楚我在哪里不恰当地加载了这些常量。
我在运行 RSpec、服务器、本地控制台等时收到此警告
DEPRECATION WARNING: Initialization autoloaded the constants ApplicationHelper,EventsHelper,FontAwesome::Rails::IconHelper,DeviseHelper,ErrorHandler,and ApplicationController.
Being able to do this is deprecated. Autoloading during initialization is going
to be an error condition in future versions of Rails.
以下是被不当自动加载的常量:
- ApplicationHelper - 标准 Rails 文件
- EventsHelper - EventsController 的标准 Rails 文件
- FontAwesome::Rails::IconHelper - 来自 gem,不在我的应用程序目录中
- DeviseHelper - 来自 gem,不在我的应用程序目录中
- ErrorHandler - 位于“app/controllers/concerns/error_handler”
- ApplicationController - 标准 Rails 文件
我查找了可能会为这些常量调用 include
或 require
的实例,但没有找到。我特别关注我的初始化程序。
我在没有任何明显提示的情况下运行(并通读)bin/rails zeitwerk:check
。我看到这些实例按预期加载:
...
Zeitwerk@rails.main: constant ApplicationHelper loaded from file /Users/ckragt/ruby/filterbuildscheduler/app/helpers/application_helper.rb
...
Zeitwerk@rails.main: constant EventsHelper loaded from file /Users/ckragt/ruby/filterbuildscheduler/app/helpers/events_helper.rb
...
Zeitwerk@rails.main: constant FontAwesome::Rails::IconHelper loaded from file /Users/ckragt/.rvm/gems/ruby-2.7.0/gems/font-awesome-rails-4.7.0.7/app/helpers/font_awesome/rails/icon_helper.rb
...
Zeitwerk@rails.main: constant DeviseHelper loaded from file /Users/ckragt/.rvm/gems/ruby-2.7.0/gems/devise-4.7.3/app/helpers/devise_helper.rb
...
Zeitwerk@rails.main: constant ErrorHandler loaded from file /Users/ckragt/ruby/filterbuildscheduler/app/controllers/concerns/error_handler.rb
...
Zeitwerk@rails.main: autoload set for ApplicationController,to be loaded from /Users/ckragt/ruby/filterbuildscheduler/app/controllers/application_controller.rb
我正在使用 Spring 和 Binstub(都更新到最新版本)。
这是我的 application.rb
文件的顶部:
# frozen_string_literal: true
require_relative 'boot'
require 'csv'
require 'rails'
# Pick the frameworks you want:
require 'active_model/railtie'
require 'active_job/railtie'
require 'active_record/railtie'
# require "active_storage/engine"
require 'action_controller/railtie'
require 'action_mailer/railtie'
# require 'action_mailBox/engine'
# require 'action_text/engine'
require 'action_view/railtie'
# require 'action_cable/engine'
require 'sprockets/railtie'
# require 'rails/test_unit/railtie'
require 'google/apis/gmail_v1'
require 'google/api_client/client_secrets'
# Require the gems listed in Gemfile,including any gems
# you've limited to :test,:development,or :production.
Bundler.require(*Rails.groups)
module Buildplanner
class Application < Rails::Application
# Initialize configuration defaults for originally generated Rails version.
config.load_defaults 6.0
...
对我应该去哪里看看有什么想法吗?
解决方法
事实证明这似乎与rails_admin
有关。
我是如何了解到这一点的:
Someone else 分享了我对警告消息的不满,并寻求更多帮助来追踪问题。
One response 建议将 pp caller_locations
放在正在自动加载的文件之一的顶部。这样做给了我一个可以使用的回溯。那时我注意到 rails_admin
出现在每个路径中。
我注意到我已经在 require
中有大量的 config/initializers/rails_admin.rb
语句:
require 'money-rails/rails_admin'
require 'rails_admin/adapters/active_record'
require 'application_record'
require 'user'
require 'event'
require 'registration'
require 'location'
require 'technology'
require 'supplier'
require 'component'
require 'part'
require 'material'
require 'count'
require 'inventory'
require 'extrapolate_component_part'
require 'extrapolate_material_part'
require 'extrapolate_technology_component'
require 'extrapolate_technology_part'
require 'extrapolate_technology_material'
对于百灵鸟,我将它们全部注释掉,然后进行了 RSpec 测试。我的警告信息突然变得很长,还有更多的实例:
DEPRECATION WARNING: Initialization autoloaded the constants ApplicationHelper,EventsHelper,FontAwesome::Rails::IconHelper,DeviseHelper,ErrorHandler,ApplicationController,ApplicationRecord,User,Event,Registration,Location,Technology,Component,Part,Material,Supplier,Count,Inventory,ExtrapolateComponentPart,ExtrapolateMaterialPart,ExtrapolateTechnologyComponent,ExtrapolateTechnologyPart,and ExtrapolateTechnologyMaterial.
所以我决定在我之前的实例中添加:
require 'application_helper'
require 'events_helper'
require 'devise_helper'
require 'error_handler'
require 'application_controller'
...对于我已经很长的列表,我的警告信息,除了 FontAwesome::Rails::IconHelper
之外的所有内容都消失了。如果我能找出正确的文件路径,我想我也可以得到那个。
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