Switching to active_record_store session management errors out

rubyonrails-talk
1

Hello,

Running Ruby 1.8.6 and Rails 2.2.2 against an Oracle XE database (sigh).

I just upgraded Rails from 1.2.3 to 2.2.2, which made my cookie based system for storing session information to error out due to the 4Kb limit. So, I tried to turn on the active_record_store system by un- commenting out the "config.action_controller.session_store = :active_record_store" line in environment.rb and then create a db session (db:sessions:create) and run a rake migration (rake db:migrate).

Got all that done, which created a table named SESSIONS in the DB. However I had to tweak the migration code because the table name generated was singular (SESSION) and Oracle didn't like that name. I searched the internet and found a sample where the table name was plural (SESSIONS), so I made the change hoping for the best. Here is the SQL generated:

CREATE TABLE "SESSIONS"    ( "ID" NUMBER(38,0) NOT NULL ENABLE,   "SESSION_ID" VARCHAR2(255) NOT NULL ENABLE,   "DATA" CLOB,   "CREATED_AT" DATE,   "UPDATED_AT" DATE,    PRIMARY KEY ("ID") ENABLE    ) /

CREATE INDEX "INDEX_SESSIONS_ON_SESSION_ID" ON "SESSIONS" ("SESSION_ID") /

CREATE INDEX "INDEX_SESSIONS_ON_UPDATED_AT" ON "SESSIONS" ("UPDATED_AT") /

But now, when I try to start my application, I get an error I've been unable to solve. This is the error:

/!\ FAILSAFE /!\ Wed Dec 24 22:36:41 -0500 2008 Status: 500 Internal Server Error "DESC session" failed; does it exist? (eval):3:in 'describe' c:/ruby/lib/ruby/gems/1.8./gems/activerecord-oracle-adapter01.0.0.9250/ lib/active_record/connection_adapters/oracle_adapter.rb:334: in 'columns'

And here are the first 2 lines of the method:

        def columns(table_name, name = nil) #:nodoc:           (owner, table_name) = @connection.describe(table_name)

I believe the problem is in the table name change I made (from singular to plural). I have looked to see if there was a way in Rails to override the name of the table that stores session information but couldn't find any.

I really would appreciate some help on this.

Thanks in advance.

Pepe

2

"You may configure the table name, primary key, and data column. For example, at the end of <tt>config/environment.rb</tt>:    CGI::Session::ActiveRecordStore::Session.table_name = 'legacy_session_table'    CGI::Session::ActiveRecordStore::Session.primary_key = 'session_id'    CGI::Session::ActiveRecordStore::Session.data_column_name = 'legacy_session_data' Note that setting the primary key to the +session_id+ frees you from having a separate +id+ column if you don't want it. However, you must <tt>session.model.id = session.session_id</tt> by hand! A before filter on ApplicationController is a good place."

/usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/ session/active_record_store.rb

3

I want to thank whoever sent me the answer below to my e-mail address. I tried to answer the e-mail but the e-mail server returned the e-mail saying the address didn't exist.

This did the trick, but it sparkled another question. I tried to dig through the Rails and Ruby documentations to get to the class where the 'magic' happens and I am too dense to figure out where it is. I would appreciate if somebody shed some light on how to get there.

Thanks a lot.

Pepe

    # You may configure the table name, primary key, and data column.     # For example, at the end of <tt>config/environment.rb</tt>:     # CGI::Session::ActiveRecordStore::Session.table_name = 'legacy_session_table'     # CGI::Session::ActiveRecordStore::Session.primary_key = 'session_id'     # CGI::Session::ActiveRecordStore::Session.data_column_name = 'legacy_session_data'     # Note that setting the primary key to the +session_id+ frees you from     # having a separate +id+ column if you don't want it. However, you must     # set <tt>session.model.id = session.session_id</tt> by hand! A before filter     # on ApplicationController is a good place.

/usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/ session/active_record_store.rb