调整

db/migrate/20190508045744_migrate_exercise_answer_score.rb

@@ -0,0 +1,20 @@
+class MigrateExerciseAnswerScore < ActiveRecord::Migration
+  def up
+    exercise = Exercise.where(:id => 1527).first
+    if exercise.present?
+      exercise.exercise_users.each do |exercise_user|
+        score = 0
+        exercise.exercise_questions.each do |question|
+          ExerciseShixunAnswer.where(exercise_question_id: question.id, user_id: exercise_user.user_id).each do |answer|
+            score += answer.score
+          end
+        end
+
+        exercise_user.update_attributes(objective_score: score, score: score)
+      end
+    end
+  end
+
+  def down
+  end
+end