Question

我的rails身份验证存在问题。我没有使用Devise。无论出于何种原因，当我登录到应用程序时，一切都很好但是当我在创建新帐户时尝试重定向时，current_user是nil？有什么建议吗？

用户模型

class UsersController < ApplicationController
before_action :set_user, only: [:show]

def create
    @user = User.new(user_params)
    if @user.save
        flash[:notice] = "Welcome to the site"
        redirect_to current_user
    else
        flash[:notice] = "There was a problem creating your account. Please try again."
        render new
    end
end

def new
    @user = User.new
end

def show
    @locations = current_user.locations
    @appointments = current_user.appointments
end

def index
end

private

def set_user
    @user = User.find_by_email(params[:id])
end

def user_params
    params.require(:user).permit(:name, :email, :service, :provider, :password, :password_confirmation)
end


end

会话控制器

def create
    user = User.find_by_email(params[:email])
    if user && user.authenticate(params[:password])
        session[:user_id] = user.id
        redirect_to current_user
    else
        flash.now[:error] = "There was a problem authenticating."
        render action: 'new'
    end
 end

def destroy
    session[:user_id] = nil
    redirect_to root_url, notice: "Signed out!"
end

应用程序控制器

def current_user
    @current_user ||= User.find(session[:user_id]) if session[:user_id]
    rescue ActiveRecord::RecordNotFound
end

helper_method :current_user

Answer 1

注册后，您创建了用户，但没有创建会话。当您查找current_user时，会话[：user_id]没有值。

另外，我认为current_user方法可能对模型不可见。

您可以尝试这样的事情：

class UsersController < ApplicationController
  before_action :set_user, only: [:show]

  def create
    @user = User.new(user_params)
    if @user.save
      flash[:notice] = "Welcome to the site"
      session[:user_id] = @user.id           # <=====
      redirect_to @user                      # <=====
    else
      flash[:notice] = "There was a problem creating your account. Please try again."
      render new
    end
  end

  ...
end

Answer 2

你需要保存新用户后重定向前的session[:user_id] = user.id。您未设置它，因此创建用户时session[:user_id]为零

Rails 4用户身份验证来自Scratch Current_user == nil？

2 个答案: