我想知道如何为具有不同用户的现有数据库添加设计。在这里,我已经有了一个客户模型定义,我想改变以允许设计工作。
我已经创建了一个新的迁移,并且插入的代码已经跟随
class AddDeviseToCustomer < ActiveRecord::Migration
def change
change_table :customers do |t|
#t.database_authenticatable
t.string :encrypted_password, :null => false, :default => '', :limit => 128
t.confirmable
t.recoverable
t.rememberable
t.trackable
t.token_authenticatable
t.timestamps
end
end
end
据此,它应该工作。 https://github.com/plataformatec/devise/wiki/How-To:-change-an-already-existing-table-to-add-devise-required-columns。但是当运行rake db:migrate时,我得到以下内容
undefined method `confirmable' for #<ActiveRecord::ConnectionAdapters::Table:0x9286a28>
我已经运行了以下一行
rails g devise:install
任何理由设计都不会认出来,我是否需要做一些事情来说客户是一个设计? 提前致谢
答案 0 :(得分:17)
看起来文档已经过时了。
尝试使用设计生成器,它将创建相同的迁移,使用正确的参数,如果它是现有模型就可以了:
rails g devise customer
它应该创建AddDeviseToCustomers
迁移
与此类似:
class AddDeviseToCustomers < ActiveRecord::Migration
def self.up
change_table(:customers) do |t|
## Database authenticatable
t.string :email, :null => false, :default => ""
t.string :encrypted_password, :null => false, :default => ""
## Recoverable
t.string :reset_password_token
t.datetime :reset_password_sent_at
## Rememberable
t.datetime :remember_created_at
## Trackable
t.integer :sign_in_count, :default => 0
t.datetime :current_sign_in_at
t.datetime :last_sign_in_at
t.string :current_sign_in_ip
t.string :last_sign_in_ip
## Confirmable
t.string :confirmation_token
t.datetime :confirmed_at
t.datetime :confirmation_sent_at
t.string :unconfirmed_email # Only if using reconfirmable
## Lockable
# t.integer :failed_attempts, :default => 0 # Only if lock strategy is :failed_attempts
# t.string :unlock_token # Only if unlock strategy is :email or :both
# t.datetime :locked_at
## Token authenticatable
# t.string :authentication_token
# Uncomment below if timestamps were not included in your original model.
# t.timestamps
end
def self.down
# By default, we don't want to make any assumption about how to roll back a migration when your
# model already existed. Please edit below which fields you would like to remove in this migration.
raise ActiveRecord::IrreversibleMigration
end
end
请注意,不再有t.confirmable