class EcYear < ApplicationRecord
  belongs_to :ec_major_school

  # 课堂配置
  has_many :ec_courses, dependent: :destroy
  has_many :ec_course_targets, through: :ec_courses
  has_one :ec_training_objective, dependent: :destroy
  has_many :ec_training_subitems, through: :ec_training_objective
  has_many :ec_graduation_requirements, dependent: :destroy
  has_many :ec_graduation_subitems, through: :ec_graduation_requirements
  has_many :ec_year_students, dependent: :destroy
end
