module Gaku
  class GradingMethod < ActiveRecord::Base

    has_one :exam
    has_one :exam_portion
    has_one :assignment
    has_many :simple_grade_types

    has_many :grading_method_set_items
    has_many :grading_method_sets, through: :grading_method_set_items

    validates :name, presence: true, uniqueness: true

    def to_s
      name
    end

  end
end