Newbie alert! diff between @session['user'].id and @session


I struggled for sometime to use @session[:user].id while using
LoginGenerator to retrieve id of the logged in user. In the end I could
make it work with @session[‘user’].id. Shouldn’t the two approaches be



Hi, you should be able to use script console to determine if they are
equivalent. For example,

irb(main):001:0> a = {}
=> {}
irb(main):002:0> a[:this] = ‘foo’
=> “foo”
irb(main):003:0> a[:this]
=> “foo”
irb(main):004:0> a[‘this’] = ‘foo2’
=> “foo2”
irb(main):005:0> a[:this]
=> “foo”
irb(main):006:0> a[:this] == a[‘this’]
=> false

Good luck,



Ok, makes sense… Thanks…
i think loginGenerator by default generates the code that use quotes
for array reference.


Actually, this may be misleading in the case of session, params, and
other certain ‘special’ hashes that Rails uses. Rails has a
“HashWithIndifferentAccess” that allows accesing something by symbol
and key, so that session[:foo] == session[‘foo’]. I’m not positive
that session uses that hash, but you should test this right in a
controller and not just in a plain irb session.

  • Rob


A note: accessing the session with @session[] has been deprecated for
a while now
(a few months). Try using just ‘session[:user]’.


On 1/25/07, newtorails. removed_email_address@domain.invalid wrote:

Matt J.
President/Technical Director, Acme Art Company (


Matt, changing @session to session[…] doesn’t change the situation…
let me know if you see anything different.


Hi, my test using IRB was consistent with my test using sessions
within a controller. Thus, the following isn’t equal:

session[:user] != session[‘user’]

In general, they implemented session as global hash within Rails.