Failure to Redirect on user Sign-in - ruby-on-rails

Question

I have a rails app . I have created a sessionscontroller and want to redirect to users page '/users' once the user signs in. But the redirect doesnt seem to be happening.
class SessionsController < ApplicationController
def create
user = User.find_or_create_by_fbid(params[:user][:fbid]) #...Success
user.update_attributes(params[:user]) #....Sucess
sign_in(user) # ....This occurs successfully
redirect_to users_path # .... Redirect doesnt occur on the browser side
end
end
The sign_in method is defined inside the Application Controller
class ApplicationController < ActionController::Base
def sign_in(user)
session[:fbid] = user.fbid
#current_user = user
end
end
Server Logs below . The redirect actually seems to be happening on the server side . But I do not see any change on the client side. The browser doesnt change page.
The UsersController
class UsersController < ApplicationController
def index
#users = User.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #users }
end
end
end
Original Ajax Post -
$.post("/sessions",{user:{name:profile.name, email:profile.email,fbid:profile.id}});
The redirect occurs successfully if I use a javascript redirect statement inside the $post() as a callback function .
$.post("/sessions",{user:{name:profile.name, email:profile.email,fbid:profile.id}},function( data ) {
window.location="/users";
}
);

Answer 1

You need to handle the response's redirection in an ajax query. Normally the browser handles, but it won't with ajax.
From this SO question (edited slightly for your case)
var params = {user:{name:profile.name, email:profile.email,fbid:profile.id}};
$.ajax({
type: "POST",
url: "/sessions",
data: params,
dataType: "json",
success: function(data, textStatus) {
if (data.redirect) {
// data.redirect contains the string URL to redirect to
window.location.href = data.redirect;
}
else {
// data.form contains the HTML for the replacement form
$("#login_form").replaceWith(data.form);
}
}
});

Answer 2

I'm using a real basic authentication based of Ryan Bates' screencast. If you can't figure it out from my code, I recommend watching Authentication from Scratch
applications_controller.rb
class ApplicationController < ActionController::Base
protect_from_forgery
helper_method :current_user
private
def current_user
#current_user ||= User.find(session[:user_id]) if session[:user_id]
end
end
sessions_controller.eb
class SessionsController < ApplicationController
def new
end
def create
user = User.authenticate(params[:email], params[:password])
if user
session[:user_id] = user.id
redirect_to root_url, :notice => "Logged in!"
else
flash.now.alert = "Invalid email or password"
render "new"
end
end
def destroy
session[:user_id] = nil
redirect_to root_url, :notice => "Logged out!"
end
end
Ajax Post -
$.post("/sessions",{user:{name:profile.name, email:profile.email,fbid:profile.id}});