增加题目提交总数和通过率统计字段

submission/views.py

@@ -28,6 +28,9 @@ class SubmissionAPIView(APIView):
             data = serializer.data
             try:
                 problem = Problem.objects.get(id=data["problem_id"])
+                # 更新问题的总提交计数
+                problem.total_submit_number += 1
+                problem.save()
             except Problem.DoesNotExist:
                 return error_response(u"题目不存在")
             submission = Submission.objects.create(user_id=request.user.id, language=int(data["language"]),
@@ -51,6 +54,18 @@ class SubmissionAPIView(APIView):
             submission = Submission.objects.get(id=submission_id, user_id=request.user.id)
         except Submission.DoesNotExist:
             return error_response(u"提交不存在")
+        # 标记这个submission 已经被统计
+        if not submission.is_counted:
+            submission.is_counted = True
+            submission.save()
+        if submission.result == result["accepted"]:
+            # 更新题目的 ac 计数器
+            try:
+                problem = Problem.objects.get(id=submission.problem_id)
+                problem.total_accepted_number += 1
+                problem.save()
+            except Problem.DoesNotExist:
+                pass
         response_data = {"result": submission.result}
         if submission.result == 0:
             response_data["accepted_answer_time"] = submission.accepted_answer_time