new

# File activerecord/lib/active_record/associations.rb, line 36
    def initialize(reflection)
      through_reflection = reflection.through_reflection
      source_reflection  = reflection.source_reflection
      super("Invalid source reflection macro :#{source_reflection.macro}#{" :through" if source_reflection.options[:through]} for has_many #{reflection.name.inspect}, :through => #{through_reflection.name.inspect}.  Use :source to specify the source reflection.")
    end