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Editorial Team
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Asked: 2026-05-27T18:03:28+00:00

I need to dump a set of Awards into a instance variable: @corp =

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I need to dump a set of Awards into a instance variable: 

@corp = Award.find(:all, :conditions => ["award.category_id = ?", "2" ])

Award <= => AwardsCategories <= => Categories

I am trying to find All the Awards that have a Category of X

The interesting piece I am noticing is that my Award.category_id is nil but the AwardsCategory.category_id and award_id are both set.

The error is returning is: 

ActiveRecord::StatementInvalid in PagesController#award_cat

PGError: ERROR:  missing FROM-clause entry for table "award"
LINE 1: SELECT "awards".* FROM "awards"  WHERE (award.category_id = ...
                                                ^
: SELECT "awards".* FROM "awards"  WHERE (award.category_id = '2')

Any ideas and merry christmas

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1 Answer

  1. Editorial Team

    With a habm award doesn’t need a category_id (after all, if it was used, how could an award have multiple categories?)

    You need to join the award_categories table and put conditions on award_categories.category_id. Obviously if you have an actual category handy, you can just do

    category.awards
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