我正在用Rails、React和Redux编写一个单页应用程序;下面是完整的错误消息：
Started POST "/api/users" for ::1 at 2020-01-27 21:48:27 -0800
Processing by Api::UsersController#create as JSON
Parameters: {"user"=>{"username"=>"racookin", "password"=>"[FILTERED]", "nickname"=>"racookin", "gender"=>"female", "birthday"=>"1990-07-07"}}
(0.2ms) BEGIN
↳ app/controllers/api/users_controller.rb:6
User Exists (0.4ms) SELECT 1 AS one FROM "users" WHERE "users"."username" = $1 LIMIT $2 [["username", "racookin"], ["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
User Exists (0.3ms) SELECT 1 AS one FROM "users" WHERE "users"."email" IS NULL LIMIT $1 [["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
User Exists (0.3ms) SELECT 1 AS one FROM "users" WHERE "users"."session_token" = $1 LIMIT $2 [["session_token", "9B3Uo1FGMnJDeASGGucj_Q"], ["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
(0.2ms) ROLLBACK
↳ app/controllers/api/users_controller.rb:6
Completed 401 Unauthorized in 274ms (Views: 0.2ms | ActiveRecord: 10.6ms)我试着去理解这是什么意思，这样我就能知道从哪里开始寻找bug;它似乎返回了401 Unauthorized错误，并且它说用户存在（即使我尝试用新用户注册）。这到底是怎么回事#36825;数据库中的三个？
更新：我想我明白它失败是因为用户没有被保存，这意味着它可能没有通过其中一个验证。
以下是我的User模型：
class User < ApplicationRecord
attr_reader :password
validates :username, :email, :nickname, :gender, :birthday, :password_digest, :session_token, presence: true
validates :username, :email, :session_token, uniqueness: true
validates :password, length: {minimum: 6}, allow_nil: true
after_initialize :ensure_session_token
...下面是我的users表的模式的详细说明：
# Table name: users
#
# id :bigint not null, primary key
# username :string not null
# email :string not null
# nickname :string not null
# gender :string not null
# birthday :date not null
# password_digest :string not null
# session_token :string not null
# created_at :datetime not null
# updated_at :datetime not null这些验证之一是否可能失败？我假设因为这些列的值是在表单中设置的，所以我的用户会通过验证;但我错了吗
更新：我已经修复了电子邮件参数问题，但我似乎仍然得到401状态错误：
Started POST "/api/users" for ::1 at 2020-01-28 08:54:20 -0800
Processing by Api::UsersController#create as JSON
Parameters: {"user"=>{"username"=>"", "password"=>"[FILTERED]", "nickname"=>"pooh", "gender"=>"male", "birthday"=>"2002-02-02", "email"=>"pooh10"}}
(0.2ms) BEGIN
↳ app/controllers/api/users_controller.rb:6
User Exists (1.3ms) SELECT 1 AS one FROM "users" WHERE "users"."username" = $1 LIMIT $2 [["username", ""], ["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
User Exists (0.3ms) SELECT 1 AS one FROM "users" WHERE "users"."email" = $1 LIMIT $2 [["email", "pooh10"], ["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
User Exists (0.3ms) SELECT 1 AS one FROM "users" WHERE "users"."session_token" = $1 LIMIT $2 [["session_token", "232kGIICEzCUSSesxgeYfg"], ["LIMIT", 1]]
↳ app/controllers/api/users_controller.rb:6
(0.2ms) ROLLBACK
↳ app/controllers/api/users_controller.rb:6
Completed 401 Unauthorized in 284ms (Views: 0.3ms | ActiveRecord: 12.3ms)
2条答案
按热度按时间omjgkv6w1#
根据您的请求，
api/users的参数。你没有在你的参数中传递电子邮件。根据您的模型，您为电子邮件添加了
uniqueness验证。现在，当活动记录尝试使用现有记录验证您的记录时，它发现一个带有
null email的记录，因此它向您返回验证失败消息。如果你想保存空值的记录，你需要在你的模型中为email字段添加
:allow_nil => true。编辑
在
users模型中设置用户名随机。tkqqtvp12#
有时，您保存的记录与模型没有直接关联。
比如我用这个
其中“current_admin”是Admin模型，传递的“recommendee”哈希参数应该是Employee模型。我传递的是管理员而不是员工记录。
这个场景会导致请求在Rails中响应401状态来保护请求。
我把它改成了
这里的“adminable”是对Employee的多态关联引用，因此返回Employee模型。通过这样做，它以200状态响应。