search for: relationship_id

...=> :relationship_topic end class RelationshipTopic < ActiveRecord::Base validates_uniqueness_of :topic, :scope => :relationship belongs_to :relationship belongs_to :topic end Now, here is example code of me trying to create a new RelationshipTopic: @rel = RelationshipTopic.new(:relationship_id => 1, :topic_id => 1) => #<RelationshipTopic id: nil, relationship_id: 1, topic_id: 1, primary: nil, created_at: nil, updated_at: nil> >> @rel.save @rel.save NoMethodError: You have a nil object when you didn''t expect it! The error occurred while evaluating nil.text?...

I want to have popup menus and check boxes in my forms to let users select associated objects. In the form I''m working on, the object "belongs_to" another type of object which is selected from a popup menu. The id of the chosen object(s) for association is passed back in the parameter hash, but when rails creates a new object from this parameter hash, I get a