class ItemBank < ApplicationRecord # difficulty: 1 简单 2 适中 3 困难 enum item_type: { SINGLE: 0, MULTIPLE: 1, JUDGMENT: 2, COMPLETION: 3, SUBJECTIVE: 4, PRACTICAL: 5, PROGRAM: 6 } # item_type: 0 单选 1 多选 2 判断 3 填空 4 简答 5 实训 6 编程 belongs_to :user belongs_to :sub_discipline has_one :item_analysis, dependent: :destroy has_many :item_choices, dependent: :destroy has_many :item_baskets, dependent: :destroy has_many :tag_discipline_containers, as: :container, dependent: :destroy has_many :tag_disciplines, through: :tag_discipline_containers belongs_to :container, polymorphic: true, optional: true def analysis item_analysis&.analysis end end