[英]ArgumentError in UsersController#create wrong number of arguments (given 0, expected 1)
First up, I'm using rails 5.1.2. 首先,我使用rails 5.1.2。 I've used Michael Hartl's tutorial as a starting point for a web app and I've run into a snag.
我已经将Michael Hartl的教程用作Web应用程序的起点,但遇到了麻烦。
When I try to sign up to the website while running a dev server on localhost, I get an error after I submit the user details. 当我在localhost上运行开发服务器时尝试注册网站时,提交用户详细信息后出现错误。
ArgumentError in UsersController#create wrong number of arguments (given 0, expected 1)
Extracted source (around line #21):
def create
@user = User.new(user_params)
if @user.save
@user.send_activation_email
flash[:info] = "Please check your email to activate your account."
redirect_to root_url
Rails.root: /home/krefey/workspace/gaming-sonar
Application Trace | Framework Trace | Full Trace
app/controllers/users_controller.rb:21:in `create'
I think it is because I have installed ActiveAdmin and Devise and that is causing issues with the user model that has been setup. 我认为这是因为我已经安装了ActiveAdmin和Devise,并导致已设置的用户模型出现问题。
user.rb user.rb
class User < ApplicationRecord
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable,
:recoverable, :rememberable, :trackable, :validatable
attr_accessor :remember_token, :activation_token, :reset_token
before_save :downcase_email
before_create :create_activation_digest
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 },
format: { with: VALID_EMAIL_REGEX },
uniqueness: { case_sensitive: false }
has_secure_password
validates :password, presence: true, length: { minimum: 10 }, allow_nil: true
# Returns the hash digest of the given string.
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
# Returns a random token.
def User.new_token
SecureRandom.urlsafe_base64
end
# Remembers a user in the database for use in persistent sessions.
def remember
self.remember_token = User.new_token
update_attribute(:remember_digest, User.digest(remember_token))
end
# Returns true if the given token matches the digest.
def authenticated?(attribute, token)
digest = send("#{attribute}_digest")
return false if digest.nil?
BCrypt::Password.new(digest).is_password?(token)
end
# Forgets a user.
def forget
update_attribute(:remember_digest, nil)
end
# Activates an account.
def activate
update_columns(activated: true, activated_at: Time.zone.now.to_datetime)
end
# Sends activation email.
def send_activation_email
UserMailer.account_activation(self).deliver_now
end
# Sets the password reset attributes.
def create_reset_digest
self.reset_token = User.new_token
update_columns(reset_digest: User.digest(reset_token), reset_sent_at: Time.zone.now)
end
# Sends password reset email.
def send_password_reset_email
UserMailer.password_reset(self).deliver_now
end
# Returns true if a password reset has expired.
def password_reset_expired?
reset_sent_at < 2.hours.ago
end
private
# Converts email to all lower-case.
def downcase_email
email.downcase!
end
# Creates and assigns the activation token and digest.
def create_activation_digest
self.activation_token = User.new_token
self.activation_digest = User.digest(activation_token)
end
end
user_controller user_controller
class UsersController < ApplicationController
before_action :logged_in_user, only: [:index, :edit, :update, :destroy]
before_action :correct_user, only: [:edit, :update]
before_action :admin_user, only: :destroy
def index
@users = User.where(activated: true).paginate(page: params[:page])
end
def show
@user = User.find(params[:id])
redirect_to root_url and return unless @user.activated?
end
def new
@user = User.new
end
def create
@user = User.new(user_params)
if @user.save
@user.send_activation_email
flash[:info] = "Please check your email to activate your account."
redirect_to root_url
else
render 'new'
end
end
def edit
@user = User.find(params[:id])
end
def update
@user = User.find(params[:id])
if @user.update_attributes(user_params)
flash[:success] = "Profile updated"
redirect_to @user
else
render 'edit'
end
end def create
@user = User.new(user_params)
if @user.save
@user.send_activation_email
flash[:info] = "Please check your email to activate your account."
redirect_to root_url
def destroy
User.find(params[:id]).destroy
flash[:success] = "User deleted"
redirect_to users_url
end
private
def user_params
params.require(:user).permit(:name, :email, :password, :password_confirmation)
end
# Confirms a logged-in user.
def logged_in_user
unless logged_in?
flash[:danger] = "Please log in."
redirect_to login_url
end
end
# Confirms the correct user.
def correct_user
@user = User.find(params[:id])
redirect_to(root_url) unless current_user?(@user)
end
# Confirms an admin user.
def admin_user
redirect_to(root_url) unless current_user.admin?
end
end
_form.html.erb _form.html.erb
<%= form_for(@user) do |f| %>
<%= render 'shared/error_messages', object: @user %>
<%= f.label :name %>
<%= f.text_field :name, class: 'form-control' %>
<%= f.label :email %>
<%= f.email_field :email, class: 'form-control' %>
<%= f.label :password %>
<%= f.password_field :password, class: 'form-control' %>
<%= f.label :password_confirmation %>
<%= f.password_field :password_confirmation, class: 'form-control' %>
<%= f.submit yield(:button_text), class: "btn btn-primary" %>
<% end %>
new.html.erb new.html.erb
<% provide(:title, 'Sign up') %>
<% provide(:button_text, 'Create my account') %>
<h1>Sign up</h1>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<%= render 'form' %>
</div>
</div>
Now, from what I can tell, it feels like that when the create function is being called, it is supposed to be assigning the parameters (user_params) to the @user variable. 现在,据我所知,感觉就像在调用create函数时,它应该将参数(user_params)分配给@user变量。
I strongly suspect that the devise line at the start of the user.rb file that I added is the culprit, but I'm not sure why. 我强烈怀疑在添加的user.rb文件开头的设计行是罪魁祸首,但我不确定为什么。
You passed incorrect parameter in User.digest
function, activation_token
is in self.activation_token
. 您在
User.digest
函数中传递了不正确的参数, activation_token
在self.activation_token
。
try to change below line in user.rb
model: 尝试更改
user.rb
模型中的以下行:
self.activation_digest = User.digest(activation_token)
with 与
self.activation_digest = User.digest(self.activation_token)
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