How do I get a session id?

I’m trying to work out how to get a user’s session id.
I can’t use: cookies[’_session_id’] since it won’t be in the user’s
cookie cache at the time of the first request.
Any help would be appreciated.

I’m a bit of a newbie, but I’ll try to help…

I have a model containing

class User < ActiveRecord::Base

and I set the session ID in a controller with

def login
session[:user_id] = nil
if request.post?
user = User.authenticate(params[:name], params[:password])
if user
session[:user_id] = user.id

and I retrieve it in a view as e.g.

User id: <%= session[:user_id] %>

and all of this is copied from Thomas et al. Agile Web Develoopment
with Rails (version 2), a book that I recommend highly.

Thanks Dan, I’m talking about the actual number that rails assigns to
users using a cookie called ‘_session_id’

and all of this is copied from Thomas et al. Agile Web Develoopment
with Rails (version 2), a book that I recommend highly.

I would rather put all the information in the session, so I get receive
what I need like this

session[:user][:id]
session[:user][:username]

etc.

this way I don’t need to connect to the database everytime I need other
information about the uesr

Wish someone would answer your actual question… I’ve scoured the docs
and google and can’t find anything about getting the session id. That’s
something I used to do fairly often in Java, but I haven’t actually
needed it in rails yet. Why do you need the session id?

b

Jamal S. wrote the following on 07.03.2007 11:21 :

This is premature optimization and has several limitations (like not
being able to see modifications to the data you cache in the session and
more overhead if you use the ActiveRecord session store). From your
example above, I suspect you may not be able to treat session[:user]
like a full bown ActiveRecord::Base derived class. You won’t be able to
use the new CookieStore for the sessions if you store too much data in
them (which is by the way faster than ActiveRecord or Pstore and doesn’t
need an external process like the Memcache store).

I use this when I need to access the current user and only store its id
in session[:user_id].

def current_user
# Cache the User instance (probably used multiple times in a
request)
return @cached_user if @cached_user
session[:user_id] ? (@cached_user = User.find(:first,
:conditions => [
‘id = ?’, session[:user_id]])) : nil
end

Avoid hitting several time the database for the same data in a single
request, but don’t get in the way if the data has been modified behind
your back.

If you really need to avoid database access, you can use acts_as_cached
or CachedModel for your users without the drawbacks of explicitely
caching them in the session…

Lionel

Brian A. wrote:

Alex MacCaw wrote:

I’m trying to work out how to get a user’s session id.
I can’t use: cookies[’_session_id’] since it won’t be in the user’s
cookie cache at the time of the first request.
Any help would be appreciated.

session.session_id

ohh he meant the actual session_id, i thought the user_id which he saved
before :slight_smile:

Alex MacCaw wrote:

I’m trying to work out how to get a user’s session id.
I can’t use: cookies[’_session_id’] since it won’t be in the user’s
cookie cache at the time of the first request.
Any help would be appreciated.

session.session_id

Well, I would reply to my own last email, but google can be hella slow
accepting mail…

Anyway, you’re gonna laugh:

session.session_id

Sometimes it’s better to just try something in the code than to search
for it. :slight_smile:

b

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs