Basic use of session

rubyonrails-talk
1

Rails 3.1.3

I'm having difficulty understanding 'session', which is a way to maintain some data even when the page reloaded (or jumped and came back), if I understand it correctly.

Basically, what I wanna do is to simply keep an integer value, stored as an instance variable, after jumping to another page and coming back to where I was. But do so, by passing the value from one action to another.

say I have an action,

def jump_to   @order = 1234   session[:value] = @order end

this action, 'jump_to', redirects to a different page(different domain), from which one can come back to the original domain but a new page, having the action

def come_back   @order = session[:value] end

But @order seems empty. Maybe I am not defining the session value properly.

Could anyone help me out?

soichi

2

Soichi Ishida wrote in post #1057926:

this action, 'jump_to', redirects to a different page(different domain), from which one can come back to the original domain but a new page, having the action

Sessions are NOT cross domain. That would be bad! You will need some sort of Single Sign-On (SSO) if you want to maintain a session (actually to synchronize data across the domains).

Two separate domains implies two separate apps, each with their own independent sessions.

3

Thanks for your reply. Maybe I have to think of a different way to achieve what I was trying to do.