我有这个 Rails 3.2 应用程序运行良好。我按照以下步骤安装了Rolify ：
- 添加
gem "rolify"到 Gemfile - 跑
bundle install - 跑
rails g rolify:role - 检查新的迁移、新文件和修改的文件（由上面的命令生成/修改）。
- 跑
rake db:migrate
此时，我尝试创建/编辑用户并收到以下错误：
NoMethodError in UsersController#create
undefined method `user_id' for #<User:0x007f8f21f168e8>
请注意，在我安装 Rolify 之前，一切正常，所以问题来自 Rolify。
以下是有问题的迁移、新文件和修改后的文件：
新的迁移：
class RolifyCreateRoles < ActiveRecord::Migration
def change
create_table(:roles) do |t|
t.string :name
t.references :resource, :polymorphic => true
t.timestamps
end
create_table(:users_roles, :id => false) do |t|
t.references :user
t.references :role
end
add_index(:roles, :name)
add_index(:roles, [ :name, :resource_type, :resource_id ])
add_index(:users_roles, [ :user_id, :role_id ])
end
end
新型号：
class Role < ActiveRecord::Base
has_and_belongs_to_many :users, :join_table => :users_roles
belongs_to :resource, :polymorphic => true
end
修改后的模型：
class User < ActiveRecord::Base
rolify
has_secure_password
has_many :issues
acts_as_tenant(:client)
attr_accessible :email, :password, :password_confirmation, :username
validates :username, presence: true,
length: { within: 4..50 },
format: { with: /(?:[\w\d]){4,255}/ }
validates_uniqueness_to_tenant :username, case_sensitive: false
validates :email, presence: true,
uniqueness: { case_sensitive: false },
length: { within: 8..255 },
format: { with: /^[-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$/i }
validates :password, presence: true, on: :create,
confirmation: true,
length: { within: 4..255 }
validates :password_confirmation, presence: true, on: :create
# NOTE: Used by SimpleForm to display the dropdown proerply
def to_label
"#{username}"
end
end
您可以在Github存储库中找到项目中的其余文件
请问有谁知道错误来自哪里？