Rails Ruby on Rails → 2.x

Comments and changes to this ticket

• 

  Pratik January 5th, 2009 @ 05:09 PM

  • State changed from “new” to “invalid”

  This was recently fixed iirc. Could you please try on edge and provide a failing test case in AR test suite if it doesn't work ?

  Thanks.

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  sbwoodside May 26th, 2009 @ 04:47 AM

  • Assigned user set to “Pratik”

  The documentation now says:

  http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassM...

  You can only use a :through query through a belongs_to or has_many association on the join model.

  So, apparently the docs were wrong.

  Also note, old bug: http://dev.rubyonrails.org/ticket/4996

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  sbwoodside May 26th, 2009 @ 04:48 AM

  • Assigned user cleared.

  Whoops, sorry didn't mean to change responsible. Anyway, since the documentation is correct now, I guess this bug should be closed.

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  Joshua White June 4th, 2009 @ 12:03 AM

  Is there a good way to do this in the case that the join model is a has_one relationship? Or is writing SQL the best way to do it?

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  Joshua White June 4th, 2009 @ 12:22 AM

  I tried a number of things and eventually realized I could just specify the foreign_key
  so in my
  History.rb
  belongs_to :patient

  Patient.rb
  has_many :exam_records
  has_one :history

  ExamRecord.rb
  belongs_to :patient
  has_one :history, :foreign_key => 'patient_id'

  On the shell I'm finally able to say
  ExamRecord.first.history

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  Joshua White June 4th, 2009 @ 12:54 AM

  Sorry, I realized my last post was incorrect, it was comparing exam_record.id to history.patient_id, and that this bug is closed, I just had to specify the primary key and all was well!

  ExamRecord.rb belongs_to :patient has_one :history, :foreign_key => 'patient_id', :primary_key => 'patient_id'