
Question:
I have a habtm relationship (assignments < assignments_candidates > candidates)
I want to be able to delete one candidate off an assignment. here is my code so far
@assignment = Assignment.find(:first, :joins => :candidates, :select => "assignments_candidates.*", :conditions => ["assignments_candidates.candidate_id = ? AND assignments_candidates.assignment_id = ?", params[:candidate_id], params[:assignment_id]] ) @assignment.destroy
At the moment all i think this does is destroy the object not the record in the intersection table
any ideas ?
Thanks, Alex
Solution:1
Here is how I did it for future reference.
assignment = Assignment.find(params[:assignment_id]) candidate = assignment.candidates.find(params[:candidate_ids]) assignment.candidates.delete(candidate)
Solution:2
Have you added a :dependent => :destroy
qualifier to the has_many
(or has_and_belongs_to_many
) relationships the associated models?
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