Rails - Jan 2008 - Are objects stored in session updated automatically?

If I lookup a user, and store that object in my session

      @user = User.find(:id)
      session[:user] = @user

then the user record changes in the database in some way, then I try
and reaccess that object

      @user = session{:user]
      @first_name = @user.first_name

Is the field "first_name" the most updated or is it still the value
originally stored in the object?

 - Dave



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Hi, if you update a session variable, you''re not updating the database
as
well.  Thus, in your example, you''re simply modifying the
object''s field,
first_name, stored in session.

Good luck,

-Conrad

On 1/31/08, laredotornado-8iDLEspWrrZBDgjK7y7TUQ@public.gmane.org
<laredotornado-8iDLEspWrrZBDgjK7y7TUQ@public.gmane.org>
wrote:
>
>
> If I lookup a user, and store that object in my session
>
>       @user = User.find(:id)
>       session[:user] = @user
>
> then the user record changes in the database in some way, then I try
> and reaccess that object
>
>       @user = session{:user]
>       @first_name = @user.first_name
>
> Is the field "first_name" the most updated or is it still the
value
> originally stored in the object?
>
> - Dave
>
>
>
> >
>
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The object stored in the session is just a reference to the in-memory
User object, it will not
reflect changes to the database.  Conventional RoR wisdom dictates
that you should not
store full objects in the session at all, but rather the id of the
object which can then be used to
lookup the object in the database as necessary.


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