Rails 6 HasManyThroughOrderError 与 Rolify

Question

我刚刚从 rails 4.2.1 迁移到 rails 6.0.3.1，我遇到了与 @scverano 相同的 HasManyThroughOrderError 问题，我已经尝试了本文中提到的所有解决方案。我的关联声明顺序正确，这是我的模型的样子：

class User < ActiveRecord::Base
   rolify :after_add => :handle_role_change_async
   
   # Associations
   has_many :users_roles, dependent: :destroy
   has_many :roles, through: :users_roles
end

class Role < ActiveRecord::Base
   
  # Associations
  has_many :users_roles, dependent: :destroy
  has_many :users, through: :users_roles
end

class UserRole < ActiveRecord::Base
   
  belongs_to :role
  belongs_to :user
  belongs_to :resource, polymorphic: true
end

这是我的错误：

Started GET "/" for 172.25.0.1 at 2020-10-21 16:22:51 +0000
  User Load (3.3ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2  [["id", 16], ["LIMIT", 1]]
  ↳ app/lib/user_constraint.rb:3:in `matches?'
Processing by MapsController#index as HTML
Completed 500 Internal Server Error in 127ms (ActiveRecord: 0.0ms | Allocations: 5413)



ActiveRecord::HasManyThroughOrderError (Cannot have a has_many :through association 'User#roles' which goes through 'User#users_roles' before the through association is defined.):

app/user_profiling/user_modules.rb:27:in `load_modules'
app/user_profiling/user_modules.rb:16:in `initialize'
app/user_profiling/user_profiling.rb:22:in `new'
app/user_profiling/user_profiling.rb:22:in `initialize'
app/controllers/application_controller.rb:40:in `new'
app/controllers/application_controller.rb:40:in `load_profiling'
app/middleware/notifications_backend.rb:51:in `call!'
app/middleware/notifications_backend.rb:18:in `call'

我正在使用： 红宝石 2.5.8 导轨 6.0.3.1 Rolify 5.3.0

有人知道发生了什么吗？我已经看过几篇帖子，所有的独白都建议先声明你正在经历的关联，但这对我不起作用。

非常感谢您的帮助，谢谢

Answer 1

你可以这样试试。我觉得应该可以帮到你。

# app/models/user.rb

class User < ActiveRecord::Base
   rolify :after_add => :handle_role_change_async
   
   # Associations
   has_many :user_roles, dependent: :destroy
   has_many :roles, through: :user_roles
end

# app/models/role.rb

class Role < ActiveRecord::Base
  # Associations
  has_many :user_roles, dependent: :destroy
  has_many :users, through: :user_roles
end