迁移

db/migrate/20190419101132_update_exerise_user_end_at.rb

@@ -0,0 +1,14 @@
+class UpdateExeriseUserEndAt < ActiveRecord::Migration
+  def up
+    exercise = Exercise.where(:id => 123).first
+    exercise.exercise_group_settings.each do |group|
+      if group.end_time.present? && group.end_time < Time.now
+        user_ids = exercise.course.members.where(:course_group_id => group.course_group_id).map(&:user_id)
+        exercise.exercise_users.where(:commit_status => 1, :user_id => user_ids).update_all(:end_at => group.end_time)
+      end
+    end
+  end
+
+  def down
+  end
+end