Question

我正在做ruby on rails教程书，我发现了一个错误。我检查了他写的所有内容，但我仍然得到错误。它告诉我authenticate是一个未定义的nil方法：NILclass。我不知道该怎么做。

user.rb：

class User < ActiveRecord::Base
attr_accessible :email, :name, :password, :password_confirmation
attr_accessor :password, :password_confirmation
has_secure password

before_save { |user| user.email = email.downcase }
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, format: { with: VALID_EMAIL_REGEX}, uniqueness:  {case_sensitive: false}
validates :password, presence: true, length:{ minimum: 6 }
validates :password_confirmation, presence: true
end

和（某些）我的user_spec.rb

before do
  @user = User.new(name: "Example User", email: "User@example", password: "foobar", password_confirmation:"foobar")
end

    subject { @user }

it { should respond_to(:password_digest) }
it { should respond_to(:password) }
it { should respond_to(:password_confirmation) }
it { should respond_to(:authenticate) }

it { should be_valid }

       #    USER.PASSWORD

describe "when password is not present" do
  before { @user.password = @user.password_confirmation = " "}
  it {should_not be_valid}
end

describe "when password is not present" do
  before { @user.password_confirmation = "mismatch" }
  it { should_not be_valid }

describe "when password is nil" do
  before { @user.password_confirmation = nil }
  it {should_not be_valid}
end  

describe "with a password that's too short" do
  before { @user.password = @user.password_confirmation = "a" * 5 }
  it { should be_valid }
end

describe "return value of authenticate method" do
  before { @user.save }
  let(:found_user) { User.find_by_email(@user.email) }

  describe "with valid password" do
    it { should == found_user.authenticate(@user.password) }
    end

  describe "with invalid password" do
    let(:user_for_invalid_password) { found_user.authenticate("invalid") }

    it {should_not == user_for_invalid_password}
    specify { user_for_invalid_password.should be_false}
  end
end
end

非常感谢所有有帮助的人。

Answer 1

我是ruby on rails的新手。我只是通过了这个教程。当我在做的时候，我发现了同样的错误。

我希望我的解决方案可以帮到你。

你的user.rb中的

删除行：attr_accessor并将has_secure密码编辑为has_secure_password（添加下划线）

class User < ActiveRecord::Base 
attr_accessible :email, :name, :password, :password_confirmation
has_secure_password
enter code here
  before_save { |user| user.email = email.downcase }
  validates :name, presence: true, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence: true, format: { with: VALID_EMAIL_REGEX}, 
  uniqueness:  {case_sensitive: false}
  validates :password, presence: true, length:{ minimum: 6 }
  validates :password_confirmation, presence: true
end

您的user.spec.rb

中的

1）您错过了describe "when password is not present"

中的'end'标记
2）更改测试describe 'with a password that's too short' 从it { should be_valid}到it { should be_invalid }我认为如果密码小于5，它应该无效。

3）最后，如果您想测试通过身份验证，您应该使用.com或与user.rb中的VALID_EMAIL_REGEX匹配的任何内容更改您的电子邮件结尾，如：

before do @user = User.new(name: "Example User", email: "User@example.com", password: "foobar", password_confirmation:"foobar") end

我希望这对你有所帮助。
抱歉我的英语不好。

Rails教程6.3.4验证错误

1 个答案: