试卷的加入题库修改

app/controllers/exercises_controller.rb

@@ -321,7 +321,7 @@ class ExercisesController < ApplicationController
       begin
         check_ids = Exercise.where(id: params[:check_ids])
         check_ids.each do |exercise|
-          current_ex_bank = current_user.exercise_banks.find_by_container(exercise.id,"Exercise").first
+          current_ex_bank = current_user.exercise_banks.find_by_container(exercise.id,"Exercise")&.first
           if current_ex_bank.present?  #当前用户的选择试卷是否已加入习题库，存在则更新习题库和问题库，否则新建习题库和问题库
             ex_params = {
                 :name => exercise.exercise_name,

app/controllers/question_banks_controller.rb

@@ -182,43 +182,25 @@ class QuestionBanksController < ApplicationController
             :shixun_id => q.shixun_id
         }
         exercise_question = new_exercise.exercise_questions.new option
-        if exercise_question.save
+        # question_type：5实训题；其他是非实训题
         if q.question_type != 5
           # 复制选择题题目选项
           q.exercise_bank_choices.try(:each_with_index) do |choice, index|
-              exercise_question.exercise_choices.create({choice_position: index+1, choice_text: choice.choice_text})
+            exercise_question.exercise_choices.new({choice_position: index+1, choice_text: choice.choice_text})
           end
+
           # 复制标准答案(填空题和问答题)  多空填空题的话，应该是原标准答案的exercise_choice_id，即为题空的位置。
           q.exercise_bank_standard_answers.try(:each) do |answer|
-              exercise_question.exercise_standard_answers.create({exercise_choice_id: answer.exercise_bank_choice_id, answer_text: answer.answer_text})
+            exercise_question.exercise_standard_answers.new({exercise_choice_id: answer.exercise_bank_choice_id, answer_text: answer.answer_text})
           end
         else
           # 复制实训题
           q.exercise_bank_shixun_challenges.try(:each_with_index) do |sc, index|
-              exercise_question.exercise_shixun_challenges.create({position: index+1, challenge_id: sc.challenge_id,
+            exercise_question.exercise_shixun_challenges.new({position: index+1, challenge_id: sc.challenge_id,
                                                               shixun_id: sc.shixun_id, question_score: sc.question_score})
           end
         end
       end
-        # question_type：5实训题；其他是非实训题git
-        # if q.question_type != 5
-        #   # 复制选择题题目选项
-        #   q.exercise_bank_choices.try(:each_with_index) do |choice, index|
-        #     exercise_question.exercise_choices.new({choice_position: index+1, choice_text: choice.choice_text})
-        #   end
-        #
-        #   # 复制标准答案(填空题和问答题)  多空填空题的话，应该是原标准答案的exercise_choice_id，即为题空的位置。
-        #   q.exercise_bank_standard_answers.try(:each) do |answer|
-        #     exercise_question.exercise_standard_answers.new({exercise_choice_id: answer.exercise_bank_choice_id, answer_text: answer.answer_text})
-        #   end
-        # else
-        #   # 复制实训题
-        #   q.exercise_bank_shixun_challenges.try(:each_with_index) do |sc, index|
-        #     exercise_question.exercise_shixun_challenges.new({position: index+1, challenge_id: sc.challenge_id,
-        #                                                       shixun_id: sc.shixun_id, question_score: sc.question_score})
-        #   end
-        # end
-      end
       # 添加学生
       # if new_exercise.save
       #   new_exercise.create_exercise_list