init project

app/forms/examination_banks/save_exam_form.rb

@@ -0,0 +1,15 @@
+class ExaminationBanks::SaveExamForm
+  include ActiveModel::Model
+
+  attr_accessor :discipline_id, :sub_discipline_id, :difficulty, :name, :duration, :tag_discipline_id
+
+  validates :discipline_id, presence: true
+  validates :sub_discipline_id, presence: true
+  validates :difficulty, presence: true, inclusion: {in: 1..3}, numericality: { only_integer: true }
+  validates :name, presence: true, length: { maximum: 60, too_long: "不能超过60个字符" }
+  validate :validate_duration
+
+  def validate_duration
+    raise '时长应为大于0的整数' if duration.present? && duration.to_i < 1
+  end
+end