rails 上的堆栈级别也 Ruby
Stack level too Ruby on rails
我对 ruby 还很陌生,所以不太确定是什么
出错了。我收到一条错误消息
"stack level too deep" 我正在尝试注册一个
新用户
这是我的代码:
class UsersController < ApplicationController
def new
@user = User.new
end
def create
@user = User.new(params)
if @user.save
redirect_to root_url, :notice => "Signed up!"
else
render "new"
end
end
private
def params
params.require(:user).permit(:firstName, :secondName, :activated, :email, :password)
end
end
Users.rb
class User < ActiveRecord::Base
attr_accessor :password
before_save :encrypt_password
validates_confirmation_of :password
validates_presence_of :password, :on => :create
validates_presence_of :email
validates_presence_of :activated
validates_presence_of :firstName
validates_presence_of :secondName
validates_uniqueness_of :email
def self.authenticate(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 encrypt_password
if password.present?
self.password_salt = BCrypt::Engine.generate_salt
self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
end
end
end
完整错误是:
SystemStackError in UsersController#create
stack level too deep
您的 params
方法需要命名为 params
以外的名称,例如 safe_params
。否则,当你在下一行 params.require
时,你正在调用自己。
params.require
正在访问来自 Rails 的名为 params
的方法。您刚刚 def
的 params
方法正在覆盖 Rails params
方法。
清晰度编辑:这应该是这样的:
def create
@user = User.new(safe_params)
...
end
def safe_params
params.require(:user).permit(:firstName, :secondName, :activated, :email, :password)
end
我对 ruby 还很陌生,所以不太确定是什么 出错了。我收到一条错误消息 "stack level too deep" 我正在尝试注册一个 新用户
这是我的代码:
class UsersController < ApplicationController
def new
@user = User.new
end
def create
@user = User.new(params)
if @user.save
redirect_to root_url, :notice => "Signed up!"
else
render "new"
end
end
private
def params
params.require(:user).permit(:firstName, :secondName, :activated, :email, :password)
end
end
Users.rb
class User < ActiveRecord::Base
attr_accessor :password
before_save :encrypt_password
validates_confirmation_of :password
validates_presence_of :password, :on => :create
validates_presence_of :email
validates_presence_of :activated
validates_presence_of :firstName
validates_presence_of :secondName
validates_uniqueness_of :email
def self.authenticate(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 encrypt_password
if password.present?
self.password_salt = BCrypt::Engine.generate_salt
self.password_hash = BCrypt::Engine.hash_secret(password, password_salt)
end
end
end
完整错误是:
SystemStackError in UsersController#create stack level too deep
您的 params
方法需要命名为 params
以外的名称,例如 safe_params
。否则,当你在下一行 params.require
时,你正在调用自己。
params.require
正在访问来自 Rails 的名为 params
的方法。您刚刚 def
的 params
方法正在覆盖 Rails params
方法。
清晰度编辑:这应该是这样的:
def create
@user = User.new(safe_params)
...
end
def safe_params
params.require(:user).permit(:firstName, :secondName, :activated, :email, :password)
end