我试图在我的用户模型上使用Devise但是当我进入rails控制台并尝试User.new时我只得到：
irb(main):002:0> User.new => #<User id: nil,first_name: nil,last_name: nil,email: nil,created_at: nil,updated_at: nil>
为什么设计专栏没有出现？
CreateUsers迁移：
class CreateUsers < ActiveRecord::Migration
def change
create_table :users do |t|
t.string :first_name
t.string :last_name
t.string :email
t.timestamps null: false
end
end
end
AddDeviseToUsers迁移：
class AddDeviseToUsers < ActiveRecord::Migration
def self.up
change_table :users do |t|
## Database authenticatable
t.string :email,null: false,default: ""
t.string :encrypted_password,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,null: false
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,null: false # Only if lock strategy is :Failed_attempts
# t.string :unlock_token # Only if unlock strategy is :email or :both
# t.datetime :locked_at
# Uncomment below if timestamps were not included in your original model.
# t.timestamps null: false
end
add_index :users,:email,unique: true
add_index :users,:reset_password_token,unique: true
# add_index :users,:confirmation_token,:unlock_token,unique: true
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
架构显示列在那里：
create_table "users",force: :cascade do |t|
t.string "first_name"
t.string "last_name"
t.datetime "created_at",null: false
t.datetime "updated_at",null: false
t.string "email",default: "",null: false
t.string "encrypted_password",null: false
t.string "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count",null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip"
t.string "last_sign_in_ip"
end
add_index "users",["email"],name: "index_users_on_email",unique: true
add_index "users",["reset_password_token"],name: "index_users_on_reset_password_token",unique: true
有任何想法吗？
解决方法
它是Devise的一个安全功能,用于限制其属性及其包含的关键信息以暴露给API调用.
但是,您可以覆盖它,您需要覆盖serializable_hash方法.
# app/models/user.rb
class User < ActiveRecord::Base
devise :database_authenticatable,:recoverable,:confirmable,:rememberable,:validatable
...
protected
def serializable_hash(options = nil)
super(options).merge(encrypted_password: encrypted_password,reset_password_token: reset_password_token) # you can keep adding attributes here that you wish to expose
end
end
您可以检查http://www.rubydoc.info/github/plataformatec/devise/Devise/Models/Authenticatable将常量声明为黑名单属性的位置
BLACKLIST_FOR_SERIALIZATION =[:encrypted_password,:reset_password_sent_at,:remember_created_at,:sign_in_count,:current_sign_in_at,:last_sign_in_at,:current_sign_in_ip,:last_sign_in_ip,:password_salt,:confirmed_at,:confirmation_sent_at,:remember_token,:unconfirmed_email,:Failed_attempts,:locked_at]
希望这能回答你的问题！