试卷的位置问题迁移

app/controllers/exercise_questions_controller.rb

@@ -348,7 +348,7 @@ class ExerciseQuestionsController < ApplicationController
 
         #当试卷已发布时（试卷的总状态),当标准答案修改时，如有已提交的学生，需重新计算分数.
 
-        if @exercise.exercise_status == Exercise::PUBLISHED
+        if @exercise.exercise_status >= Exercise::PUBLISHED
           ex_users_committed = @exercise.exercise_users.exercise_user_committed
           if ex_users_committed.size > 0
             ex_users_committed.each do |ex_user|

db/migrate/20190820102040_change_exercise_1930_position.rb

@@ -1,16 +1,27 @@
 class ChangeExercise1930Position < ActiveRecord::Migration[5.2]
   def change
-
-    #正式版的1930试卷的位置出现问题
-    #
-    ex = Exercise.find_by(id:1930)
-    ex.exercise_questions.each_with_index do |q,index|
-      q.update_attributes(question_number:index+1)
+    exs = Exercise.all.includes(:exercise_questions)
+    exs.each do |ex|
+      ex_questions = ex&.exercise_questions&.select(:id,:question_number,:exercise_id)&.order("question_number ASC")
+      if ex_questions.exists?
+        ex_questions.each_with_index do |q,index|
+          q_num = index + 1
+          if q.question_number.to_i != q_num
+            q.update_attributes(question_number: q_num)
+          end
+        end
       end
 
-    ex_q_bank = ex.exercise_bank.exercise_bank_questions
+      ex_q_bank = ex&.exercise_bank&.exercise_bank_questions&.select(:id,:question_number,:exercise_bank_id,:shixun_id)&.order("question_number ASC")
+      if ex_q_bank.exists?
         ex_q_bank.each_with_index do |q,index|
-      q.update_attributes(question_number:index+1)
+          q_num_1 = index + 1
+          if q.question_number.to_i != q_num_1
+            q.update_attributes(question_number: q_num_1)
+          end
         end
       end
+    end
+
+  end
 end