1
我有一個惡夢，試圖將用戶數據種入我的rails項目。我使用Nitrous.io，我能夠通過打字來建立一個新的用戶以下到控制檯Rails db：seed「rake aborted！ArgumentError：參數數量錯誤（0代表2）」
rails console
然後在控制檯執行以下
2.1.1 :001 > u = User.new
=> #<User id: nil, username: nil, email: nil, password_hash: nil, password_salt: nil, admin: nil, points: nil, leagues: nil>
2.1.1 :002 > u.username = 'testadmin'
=> "testadmin"
2.1.1 :003 > u.email = '[email protected]'
=> "[email protected]"
2.1.1 :004 > u.password = 'test'
=> "test"
2.1.1 :005 > u.password_confirmation = 'test'
=> "test"
2.1.1 :006 > u.admin = true
=> true
2.1.1 :007 > u.save
(86.8ms) BEGIN
User Exists (87.5ms) SELECT 1 AS one FROM "users" WHERE "users"."email" = '[email protected]' LIMIT 1
User Exists (86.6ms) SELECT 1 AS one FROM "users" WHERE "users"."username" = 'testadmin' LIMIT 1
SQL (91.7ms) INSERT INTO "users" ("admin", "email", "password_hash", "password_salt", "username") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["admin", "t"], ["email", "testAdmin @test.com"], ["password_hash", "$2a$10$tVMzM58wjt.lDG6dlsoLQe4obwYzLf3UfUc2ui6MD2eTGAgwTTaQK"], ["password_salt", "$2a$10$tVMzM58wjt.lDG6dlsoLQe"], ["username", "testadmin"]]
(89.3ms) COMMIT
=> true
2.1.1 :008 > Exit
於是我去在控制檯種子，但出現以下錯誤：在項目我seeds.rb文件並輸入以下
User.create ({username: 'testadmin2', email: '[email protected]', password: 'test', password_confirmation: 'test', admin: true})
我然後運行耙分貝
rake aborted!
ArgumentError: wrong number of arguments (2 for 0..1)
/home/action/workspace/PAW/app/models/user.rb:39:in `initialize'
/home/action/.rvm/gems/ruby-2.1.1/gems/activerecord-4.1.0/lib/active_record/inheritance.rb:30:in `new'
/home/action/.rvm/gems/ruby-2.1.1/gems/activerecord-4.1.0/lib/active_record/inheritance.rb:30:in `new'
/home/action/.rvm/gems/ruby-2.1.1/gems/protected_attributes-1.0.7/lib/active_record/mass_assignment_security/persistence.rb:45:in `create'
/home/action/workspace/PAW/db/seeds.rb:8:in `<top (required)>'
/home/action/.rvm/gems/ruby-2.1.1/gems/activesupport-4.1.0/lib/active_support/dependencies.rb:241:in `load'
/home/action/.rvm/gems/ruby-2.1.1/gems/activesupport-4.1.0/lib/active_support/dependencies.rb:241:in `block in load'
/home/action/.rvm/gems/ruby-2.1.1/gems/activesupport-4.1.0/lib/active_support/dependencies.rb:232:in `load_dependency'
/home/action/.rvm/gems/ruby-2.1.1/gems/activesupport-4.1.0/lib/active_support/dependencies.rb:241:in `load'
/home/action/.rvm/gems/ruby-2.1.1/gems/railties-4.1.0/lib/rails/engine.rb:543:in `load_seed'
/home/action/.rvm/gems/ruby-2.1.1/gems/activerecord-4.1.0/lib/active_record/tasks/database_tasks.rb:184:in `load_seed'
/home/action/.rvm/gems/ruby-2.1.1/gems/activerecord-4.1.0/lib/active_record/railties/databases.rake:173:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:seed
(See full trace by running task with --trace)
我是新來的紅寶石和鐵軌，所以我可能做一些愚蠢的事情，但我已經在最後兩個小時了，我根本找不到它。我想爲此種子數據的原因是因爲我想設置一些可以訪問某些頁面的管理員（所有頁面都可以正常工作）。爲此，我需要設置admin = true。如果我通過網站設置新用戶，我無法選擇將用戶設置爲管理員。我可以通過上面的控制檯來完成，但它需要很長時間。播種會更快，我也想知道我做錯了什麼。我會在下面給你一些其他的代碼。爲尋找（並希望幫助）
user.rb
class User < ActiveRecord::Base
attr_accessible :email, :username, :password, :password_confirmation
attr_accessor :password
before_save :encrypt_password
validates_confirmation_of :password
validates_presence_of :password, :on => :create
validates_presence_of :email, :on => :create
validates_presence_of :username, :on => :create
validates_uniqueness_of :email
validates_uniqueness_of :username
def self.authenticate_by_email(email, password)
user = find_by_email(email)
if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
user
else
nil
end
end
def self.authenticate_by_username(username, password)
user = find_by_username(username)
if user && user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt)
user
else
nil
end
end
def encrypt_password
if password.present?
self.password_salt = BCrypt::Engine.generate_salt
self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
end
end
def initialize(attributes = {})
super # must allow the active record to initialize!
attributes.each do |name, value|
send("#{name}=", value)
end
end
end
authentication_controller.rb
class AuthenticationController < ApplicationController
def sign_in
@user = User.new
end
def login
username_or_email = params[:user][:username]
password = params[:user][:password]
if username_or_email.rindex('@')
email=username_or_email
user = User.authenticate_by_email(email, password)
else
username=username_or_email
user = User.authenticate_by_username(username, password)
end
if user
session[:user_id] = user.id
flash[:notice] = 'Welcome'
redirect_to :root
else
flash.now[:error] = 'Unknown user. Please check your username and password.'
# Assign user to instance variable for the `sign_in` view!
@user = User.new(params[:user])
render :action => "sign_in"
end
end
def signed_out
session[:user_id] = nil
flash[:notice] = "You have been signed out."
end
def new_user
@user = User.new
end
def register
@user = User.new(params[:user])
if @user.valid?
@user.save
session[:user_id] = @user.id
flash[:notice] = 'Welcome.'
redirect_to :root
else
render :action => "new_user"
end
end
end
Question now answered. See below.