从现有的模型/数据库中进行安装 [英] Devise install from existing model/database

问题描述

我想知道如何使用不同的用户添加设备到现有的数据库。在这里我已经有一个客户模型定义，我想改变以允许设计工作。

I am wondering how can i add devise to an existing database with a different user. Here I already have a customer model define and I want to change to allow devise to work on it.

我已经创建了一个新的迁移并插入代码遵循

I have created a new migration and inserted the code has follow

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

根据这一点，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

According to this it should work. https://github.com/plataformatec/devise/wiki/How-To:-change-an-already-existing-table-to-add-devise-required-columns. But when running rake db:migrate i get the following

undefined method `confirmable' for #<ActiveRecord::ConnectionAdapters::Table:0x9286a28>

我已经运行以下行

rails g devise:install

任何理由不能识别这个，我需要做些什么来说客户是一个设计吗？
提前感谢

Any reason devise won't recognize it, do i need to do something to say customer is a devise?? Thanks in advance

推荐答案

看起来该文档已经过时了。

It looks like that documentation is outdated.

尝试使用devise生成器，它将创建相同的迁移，使用正确的参数，如果它现有的模型，则可以：

Try using devise generator, it will create same migration, with correct parameters, it's ok if its an existing model:

rails g devise customer

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

注意没有更多的 t.confirmable

这篇关于从现有的模型/数据库中进行安装的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！