Redirect to page before login

Question

right now I have a problem with login. I want the user to go the previous page where he/she pressed the login-button. In my code right now I just have redirect_to back which just sends the user back one level but I want it to be two levels. How do I do that?

class SessionsController < ApplicationController
    def new
    end

    def create
        user = User.find_by(email: params[:session][:email].downcase)
        if user && user.authenticate(params[:session][:password])
            sign_in user
            redirect_to back
        else
            flash.now[:error] = 'Invalid email/password combination'
            render 'new'
        end
    end

    def destroy
        sign_out
        redirect_to root_url
    end

end

Thanks!

Answer 1

The simplest solution is to probably follow the outline that the devise gem provides in their how-to. TL;DR - store the path in the session and use that as your redirect after sign in.

Answer 2

one of the solution maybe store the url inside the cookies, and redirect to that url after sign in

cookies[:return_to] = {
  value: request.fullpath, 
  expires: 1.hour.from_now
}

redirect_to sign_in_path

after login, just call

path = cookies[:return_to]
cookies.delete(:return_to)
redirect_to path