Forum: Ruby on Rails no marshal_dump is defined for class Proc

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Ben R. (Guest)
on 2006-04-04 02:01
(Received via mailing list)
Hello ~

This problem has me puzzled.  When users login to my rails app I have
the
session set up to be stored in the MySQL database for the app.
Intermittently, users will get the following error:

no marshal_dump is defined for class Proc
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:81:in
`dump'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:81:in
`marshal'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:133:in
`marshal_data!'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/callbacks.rb:333:in
`callback'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/callbacks.rb:330:in
`callback'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/callbacks.rb:248:in
`create_or_update'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/base.rb:1388:in
`save_without_validation'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/validations.rb:724:in
`save_without_transactions'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/transactions.rb:126:in
`save'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/connection_adapters/abstract/database_statements.rb:51:in
`transaction'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/transactions.rb:91:in
`transaction'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/transactions.rb:118:in
`transaction'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/transactions.rb:126:in
`save'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:307:in
`update'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/base.rb:794:in
`silence'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:307:in
`update'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session/active_record_store.rb:314:in
`close'
D:/apps/xampp/ruby/lib/ruby/1.8/cgi/session.rb:330:in `close'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/base.rb:982:in
`close_session'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/base.rb:1024:in
`process_cleanup_without_flash'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/flash.rb:147:in
`process_cleanup_without_filters'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/filters.rb:426:in
`process_cleanup_without_session_management_support'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session_management.rb:126:in
`process_cleanup_without_components'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/components.rb:182:in
`process_cleanup'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/base.rb:383:in
`process_without_filters'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/filters.rb:364:in
`process_without_session_management_support'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.0/lib/action_controller/session_management.rb:117:in
`process'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.1.0/lib/dispatcher.rb:38:in
`dispatch'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.1.0/lib/fcgi_handler.rb:150:in
`process_request'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.1.0/lib/fcgi_handler.rb:54:in
`process!'
D:/apps/xampp/ruby/lib/ruby/site_ruby/1.8/fcgi.rb:598:in `each_cgi'
D:/apps/xampp/ruby/lib/ruby/site_ruby/1.8/fcgi.rb:595:in `each_cgi'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.1.0/lib/fcgi_handler.rb:53:in
`process!'
D:/apps/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.1.0/lib/fcgi_handler.rb:23:in
`process!'
D:/Data/web/remw/advocate/public/dispatch.fcgi:24

I have had this happen in Windows running in development mode and on
Linux
running in production.  Any ideas or potential pointers would be greatly
appreciated.

Thx,

Ben
Ezra Z. (Guest)
on 2006-04-04 02:35
(Received via mailing list)
Ben-

	You cannot marshal objects that have procs or lambdas in them. Its a
current limitation of the ruby interpreter. What exactly are you
storing in the session? Whole objects? Or just id's? SHow me what you
are storing in the session and I can help you figure it out.

CHeers-
-Ezra
Ben R. (Guest)
on 2006-04-07 21:55
(Received via mailing list)
Hi Ezra ~

Thx for the tip.  I was storing an entire object, but after much
consideration decided it was overkill and a potential security risk to
store
the object in the session.  I adjusted my app to only store some key
elements in the session, and voila!

Thx again,

Ben
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