gistfile1.rb

class ParentClass < ActiveRecord::Base
  has_many :child_classes
end

class ChildClass < ActiveRecord::Base
  belongs_to :parent_class

  def self.class_method(csv_row)
    # Pivots the CSV row into a set of ChildClass instances with a reference to parent_class_instance
    # Like
  end
end

# I want to do this:

parent_class_instance.child_classes.class_method

#like running
parent_class_instance.child_classes.create(hash)

# but creating a set of instances, not a single instance