I'd say the best way to deal with this is never validate for a association_id
#validates_presence_of :question_id validates_presence_of :question would be better. if grading.question_id is nil then grading.question will also be nil. So you're effectively doing the same check. I hope this helps RobL On 13 March 2010 15:54, Max Williams <li...@ruby-forum.com> wrote: > Hi. I'm using rails 2.3.4 and have this association between two of my > models. > > Question > has_many :gradings > > Grading > belongs_to :question > > Grading has this validation: > validates_presence_of :question_id > > And this validation test is stopping me from doingg this, which i would > normally expect to work > > @question = Question.new(attributes) > @grading = @question.gradings.build(more_attributes) > @question.save #fails because grading has no question_id > > Now, i thought that this would work ok because (in my understanding) the > question is saved and then it saves it's built associated objects. How > can i ensure this will work? Do i need to drop the validation? I'd > rather not if possible. > > Grateful for any advice - max > -- > Posted via http://www.ruby-forum.com/. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-t...@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- Rob Lacey cont...@robl.me http://www.robl.me -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
