plausible?

rap.rb

  def self.attach_raps(model_class, ids, rap)
    objs = model_class.filter(:id => ids).all
    jsons = model_class.sequel_to_jsonmodel(objs)

    RAP.filter(:"#{model_class.table_name}_id" => ids).update(RAPs.supported_models.map {|model| [:"#{model.table_name}_id", nil]}.to_h)

    objs.zip(jsons).each do |obj, json|
      json['rap_attached'] = rap.to_hash

      RAP.create_from_json(JSONModel(:rap).from_hash(rap), {:"#{obj.class.table_name}_id" => obj.id})
      obj.mark_as_system_modified

      force_unpublish_for_restricted(model_class, obj.id)
    end
  end

line 8 is cruft

in fact don't need to be getting jsons and zipping anymore