Rails - Aug 2007 - has_many :through ... What am I missing?

class Ladder < ActiveRecord::Base
  has_many :players
  has_many :users, :through => :players
end

class Player < ActiveRecord::Base
  belongs_to :users
  belongs_to :ladders
end

class User < ActiveRecord::Base
  has_many :players
  has_many :ladders, :through => :players
end

When I try the following code (on the console) I get an error:

@ladder = Ladder.find(1)
@ladder.users

I get this error:

NameError: uninitialized constant Ladder::Users
        from /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/dependencies.rb:477:in `const_missing''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/base.rb:1360:in `compute_type''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/reflection.rb:125:in `send''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/reflection.rb:125:in `klass''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/associations/has_many_through_association.rb:115:in
`find_target''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/associations/association_proxy.rb:131:in `load_target''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/associations/association_proxy.rb:122:in
`method_missing''
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/associations/has_many_through_association.rb:108:in
`method_missing''
        from /opt/local/lib/ruby/1.8/irb.rb:298:in `output_value''
        from /opt/local/lib/ruby/1.8/irb.rb:151:in `eval_input''
        from /opt/local/lib/ruby/1.8/irb.rb:259:in `signal_status''
        from /opt/local/lib/ruby/1.8/irb.rb:147:in `eval_input''
        from /opt/local/lib/ruby/1.8/irb.rb:146:in `eval_input''
        from /opt/local/lib/ruby/1.8/irb.rb:70:in `start''
        from /opt/local/lib/ruby/1.8/irb.rb:69:in `catch''
        from /opt/local/lib/ruby/1.8/irb.rb:69:in `start''
        from /opt/local/bin/irb:13

What am I missing with the :through parameter? It''s driving me nuts.

-S


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Hi --

On Wed, 15 Aug 2007, Stuart  Grimshaw wrote:
>
> class Ladder < ActiveRecord::Base
>  has_many :players
>  has_many :users, :through => :players
> end
>
> class Player < ActiveRecord::Base
>  belongs_to :users
>  belongs_to :ladders
> end
Make those singular:

   belongs_to :user
   belongs_to :ladder


David

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On Aug 16, 1:22 am, dbl...-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org
wrote:
> Make those singular:
>
>    belongs_to :user
>    belongs_to :ladder
Smashing, thanks David


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