Rails - May 2007 - :through difficulties

I''m trying to use :through on a many-to-many relationship.

I''ve got the following three models:

  class User < ActiveRecord::Base
    has_many :authors
    has_many :submissions, :through => :authors

  class Author < ActiveRecord::Base
    belongs_to :submission
    belongs_to :user

  class Submission < ActiveRecord::Base
    has_many :authors
    has_many :users, :through => :authors

I''ve also got test data for each of the models, but when I try to run
either of the following in script/console I get the subsequent error:

  user.submissions
  submission.users

  NameError: undefined local variable or method

Any suggestions on how to figure out what I''ve done wrong?


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Have the same problem...

http://www.ruby-forum.com/topic/107123

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

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On 06/05/2007, at 3:44 PM, will wrote:
> I''m trying to use :through on a many-to-many relationship.
>
> I''ve got the following three models:
>
>   class User < ActiveRecord::Base
>     has_many :authors
>     has_many :submissions, :through => :authors
>
>   class Author < ActiveRecord::Base
>     belongs_to :submission
>     belongs_to :user
>
>   class Submission < ActiveRecord::Base
>     has_many :authors
>     has_many :users, :through => :authors
Do you have all the correct fields on these tables to support the  
relationships?
> I''ve also got test data for each of the models, but when I try to
run
> either of the following in script/console I get the subsequent error:
>
>   user.submissions
>   submission.users
>
>   NameError: undefined local variable or method
Can you post an exact log of what you''re typing in the console? I  
suspect you''re just misusing the relationships somehow.

Cheers,

Pete Yandell
http://notahat.com/

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