Undefined method for a belongs_to association

Posted by marimaf on Stack Overflow See other posts from Stack Overflow or by marimaf
Published on 2012-06-04T04:36:39Z Indexed on 2012/06/04 4:40 UTC
Read the original article Hit count: 187

Filed under:

ruby-on-rails-3

|

activerecord

|

belongs-to

My code:

class User < ActiveRecord::Base
    belongs_to :university
end

class University < ActiveRecord::Base
  has_many :users, dependent: :destroy
end

and my model User has a university_id attribute.

If I do University.find(1).users I get the list of users, but if I do User.find(1).university (and I checked that university_id is not nil here) I get:

NoMethodError: undefined method `university' for
    from /home/mari/.rvm/gems/ruby-1.9.2-p290/gems/activemodel-3.0.10/lib/active_model/attribute_methods.rb :392:in `method_missing'
    from /home/mari/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.0.10/lib/active_record/attribute_methods. rb:46:in `method_missing'
    from (irb):14
    from /home/mari/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.10/lib/rails/commands/console.rb:44:in
sta rt' from /home/mari/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.10/lib/rails/commands/console.rb:8:instar t' from /home/mari/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.10/lib/rails/commands.rb:23:in <top (requi red)>' from script/rails:6:inrequire' from script/rails:6:in `'

What am I doing wrong? I have another models and they are working just fine. Any suggestions? Thanks in advance

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