Rails - Mar 2006 - :through and STI

Hi,


I''m trying to use :through and STI using the trunk version of Rails,
but
I get the following error see bottom of this msg[1]

here are my classes.

class Player < ActiveRecord::Base
end

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

class SingleLadder < Ladder
end

class Subscription < ActiveRecord::Base
   belongs_to :players
   belongs_to :ladders
end

Any ideas??

Jeroen


[1]

 >> Ladder.find(:first).players
NameError: 
./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:89:in
`const_missing'': uninitialized constant Players
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/base.rb:1197:in
`instance_eval''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:120:in
`const_missing''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:122:in
`send''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:122:in
`const_missing''
         from (eval):1:in `instance_eval''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/base.rb:1197:in
`instance_eval''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/base.rb:1197:in
`compute_type''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:112:in
`send''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:112:in
`klass''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations/has_many_through_association.rb:54:in
`find_target''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:116:in
`load_target''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:109:in
`method_missing''
         from 
./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations/has_many_through_association.rb:47:in
`method_missing''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:296:in
`output_value''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:149:in
`eval_input''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:145:in
`signal_status''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:145:in
`eval_input''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:144:in
`each_top_level_statement''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:144:in
`eval_input''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:70:in
`start''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:69:in
`catch''
         from 
/Applications/Locomotive/Bundles/rails-1.0.0-max.bundle/Contents/Resources/ports/lib/ruby/1.8/irb.rb:69:in
`start''
         f

Jeroen Houben wrote:
> class Subscription < ActiveRecord::Base
>    belongs_to :players
>    belongs_to :ladders
> end
> `const_missing'': uninitialized constant Players
Your belongs_to associations should be singular:

class Subscription < ActiveRecord::Base
   belongs_to :player
   belongs_to :ladder
end

--josh
http://blog.hasmanythrough.com

-- 
Posted via http://www.ruby-forum.com/.

Josh Susser wrote:
> Jeroen Houben wrote:
>> class Subscription < ActiveRecord::Base
>>    belongs_to :players
>>    belongs_to :ladders
>> end
> 
>> `const_missing'': uninitialized constant Players
> 
> Your belongs_to associations should be singular:
> 
> class Subscription < ActiveRecord::Base
>    belongs_to :player
>    belongs_to :ladder
> end
Whoops! Well spotted - looking at your URL it seems you''re the man to 
ask ;-)

Thanks,

Jeroen
> 
> --josh
> http://blog.hasmanythrough.com
>