Rails - Jul 2010 - default_scope in rails 3 with lambda

Hello,

i am trying to set a default scope so I can pass a proc as argument. This is
the code:

default_scope lambda { where("language = ?", I18n.locale.to_s) }

When I try to get the values, the following error is raised:

NoMethodError: undefined method `includes_values'' for
#<Proc:0xb6d85b9c>
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/relation/spawn_methods.rb:10:in
`send''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/relation/spawn_methods.rb:10:in
`merge''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/relation/spawn_methods.rb:9:in
`each''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/relation/spawn_methods.rb:9:in
`merge''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/base.rb:984:in
`construct_finder_arel''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activerecord-3.0.0.beta4/lib/active_record/base.rb:1193:in
`default_scope''
    from /home/daniel/projects/ci_conferencer/app/models/speaker.rb:15
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:418:in
`load''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:418:in
`load_file''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:554:in
`new_constants_in''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:417:in
`load_file''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:313:in
`require_or_load''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:455:in
`load_missing_constant''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:156:in
`const_missing''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:154:in
`each''
    from
/home/daniel/.rvm/gems/ruby-1.8.7-p299/gems/activesupport-3.0.0.beta4/lib/active_support/dependencies.rb:154:in
`const_missing''

Does anybody know how to deal with this problem? has this issue been fixed?

I have googled it but I haven''t found any solution =S help me please.

Daniel Alejandro Gaytán Valencia

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