fix bug

app/services/exercise_user_pdf_service.rb

@@ -47,7 +47,7 @@ class ExerciseUserPdfService
   end
 
   def load_data
-    @exercise_questions = exercise.exercise_questions.joins(:exercise_choices,:exercise_shixun_challenges,:exercise_answers,:exercise_shixun_answers,:exercise_answer_comments)
+    @exercise_questions = exercise.exercise_questions
     @exercise_ques_count = @exercise_questions.count # 全部的题目数
     @exercise_ques_scores = @exercise_questions.pluck(:question_score).sum
 
@@ -80,8 +80,9 @@ class ExerciseUserPdfService
     exercise_ques_shixun = @exercise_questions.find_by_custom("question_type",5)
     @exercise_ques_shixun_count = exercise_ques_shixun.all.count
     @exercise_ques_shixun_scores = exercise_ques_shixun.pluck(:question_score).sum
+    @exercise_questions = @exercise_questions.joins(:exercise_choices,:exercise_shixun_challenges,:exercise_answers,:exercise_shixun_answers,:exercise_answer_comments,:exercise_standard_answers)
 
-    challenge_ids = @exercise_questions.pluck("exercise_shixun_challenges.challenge_id")
+    # challenge_ids = @exercise_questions.pluck("exercise_shixun_challenges.challenge_id")
 
     get_each_student_exercise(exercise.id,@exercise_questions,@ex_user_user.id)
     # @games = @exercise_user.user.games.ch_games(challenge_ids)