module Sis
  module Core
    class ClassSchedule < ApplicationRecord
      belongs_to :classroom, optional: true
      belongs_to :class_time_table, optional: true
      belongs_to :course_assignment

      delegate(:room_number, to: :classroom, prefix: true, allow_nil: true)
      delegate(:name, to: :class_time_table, prefix: true, allow_nil: true)
      delegate(:course_code, to: :course_assignment, prefix: false)
      delegate(:course_title, to: :course_assignment, prefix: false)

      def instructor_full_name
        course_assignment.instructor.full_name
      end
    end
  end
end