problem改用_id作为搜索用主键；submission更加statistic_info字段

judge/dispatcher.py

@@ -101,12 +101,14 @@ class JudgeDispatcher(object):
         if resp["err"]:
             self.submission_obj.result = JudgeStatus.COMPILE_ERROR
         else:
+            # 用时和内存占用保存为多个测试点中最长的那个
+            self.submission_obj.statistic_info["time_cost"] = max([x["cpu_time"] for x in resp["data"]])
+            self.submission_obj.statistic_info["memory_cost"] = max([x["memory"] for x in resp["data"]])
+
             error_test_case = list(filter(lambda case: case["result"] != 0, resp["data"]))
             # 多个测试点全部正确AC，否则 ACM模式下取第一个错误的测试点状态, OI模式对应为部分正确
             if not error_test_case:
                 self.submission_obj.result = JudgeStatus.ACCEPTED
-                # AC 用时保存为多个测试点中最长的那个
-                self.submission_obj.accepted_time = max([x["cpu_time"] for x in resp["data"]])
             elif self.problem_obj.rule_type == ProblemRuleType.ACM:
                 self.submission_obj.result = error_test_case[0]["result"]
             else: