增加比赛的判题

contest/models.py

@@ -58,3 +58,20 @@ class ContestProblemTestCase(models.Model):
 
     class Meta:
         db_table = "contest_problem_test_case"
+
+
+class ContestSubmission(models.Model):
+    """
+    用于保存比赛提交和排名的一些数据，加快检索速度
+    """
+    user = models.ForeignKey(User)
+    problem = models.ForeignKey(ContestProblem)
+    contest = models.ForeignKey(Contest)
+    total_submission_number = models.IntegerField(default=1)
+    # 这道题是 AC 还是没过
+    ac = models.BooleanField()
+    # 总的时间，用于acm 类型的，也需要保存罚时
+    total_time = models.IntegerField(default=0)
+
+    class Meta:
+        db_table = "contest_submission"

mq/scripts/info.py

@@ -1,10 +1,13 @@
 # coding=utf-8
 import logging
+
 import redis
+
 from judge.judger_controller.settings import redis_config
 from judge.judger.result import result
 from submission.models import Submission
 from problem.models import Problem
+from contest.models import ContestProblem, Contest, ContestSubmission
 
 logger = logging.getLogger("app_info")
 
@@ -22,16 +25,74 @@ class MessageQueue(object):
                 submission = Submission.objects.get(id=submission_id)
             except Submission.DoesNotExist:
                 logger.warning("Submission does not exist, submission_id: " + submission_id)
-                pass
+                continue
 
-            if submission.result == result["accepted"]:
+            if submission.result == result["accepted"] and not submission.contest_id:
-                # 更新题目的 ac 计数器
+                # 更新普通题目的 ac 计数器
                 try:
                     problem = Problem.objects.get(id=submission.problem_id)
                     problem.total_accepted_number += 1
                     problem.save()
                 except Problem.DoesNotExist:
                     logger.warning("Submission problem does not exist, submission_id: " + submission_id)
+                # 普通题目的话，到这里就结束了
+                continue
+
+            # 能运行到这里的都是比赛题目
+            try:
+                contest = Contest.objects.get(id=submission.contest_id)
+                contest_problem = ContestProblem.objects.get(contest=contest, id=submission.problem_id)
+            except Contest.DoesNotExist:
+                logger.warning("Submission contest does not exist, submission_id: " + submission_id)
+                continue
+            except ContestProblem.DoesNotExist:
+                logger.warning("Submission problem does not exist, submission_id: " + submission_id)
+                continue
+
+            try:
+                contest_submission = ContestSubmission.objects.get(user_id=submission.user_id, contest=contest,
+                                                                   problem_id=contest_problem.id)
+                # 如果这道题已经有提交记录了，总的提交次数计数器加1
+                contest_submission.total_submission_number += 1
+
+                if submission.result == result["accepted"]:
+
+                    # 避免这道题已经 ac 了，但是又重新提交了一遍
+                    if not contest_submission.result:
+                        # 这种情况是这个题目前处于错误状态，就使用已经存储了的罚时加上这道题的实际用时
+                        contest_submission.total_time += int((submission.create_time - contest.start_time).seconds / 60)
+                    # 标记为已经通过
+                    contest_submission.ac = True
+                    # contest problem ac 计数器加1
+                    contest_problem.total_accepted_number += 1
+                else:
+                    # 如果这个提交是错误的，就罚时20分钟
+                    contest_submission.ac = False
+                    contest_submission.total_time += 20
+                contest_submission.save()
+                contest_problem.save()
+            except ContestSubmission.DoesNotExist:
+                # 第一次提交
+                is_ac = submission.result == result["accepted"]
+                # 增加题目总提交数计数器
+                contest_problem.total_submit_number += 1
+                if is_ac:
+                    total_time = 0
+                    # 增加题目总的ac数计数器
+                    contest_problem.total_accepted_number += 1
+                    contest_problem.save()
+                else:
+                    # 没过罚时20分钟
+                    total_time = 20
+                ContestSubmission.objects.create(user_id=submission.user_id, contest=contest, problem=contest_problem,
+                                                 ac=is_ac, total_time=total_time)
+
+
+
+
+
+
+            except ContestSubmission.DoesNotExist:
                 pass
 
 

submission/migrations/0004_remove_submission_is_counted.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submission', '0003_auto_20150821_1654'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='submission',
+            name='is_counted',
+        ),
+    ]

submission/migrations/0005_submission_contest_id.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submission', '0004_remove_submission_is_counted'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='submission',
+            name='contest_id',
+            field=models.IntegerField(null=True, blank=True),
+        ),
+    ]

submission/models.py

@@ -11,6 +11,7 @@ class Submission(models.Model):
     result = models.IntegerField(default=result["waiting"])
     language = models.IntegerField()
     code = models.TextField()
+    contest_id = models.IntegerField(blank=True, null=True)
     problem_id = models.IntegerField(db_index=True)
     # 这个字段可能存储很多数据 比如编译错误、系统错误的时候，存储错误原因字符串
     # 正常运行的时候存储 lrun 的判题结果，比如cpu时间内存之类的
@@ -18,7 +19,6 @@ class Submission(models.Model):
     accepted_answer_time = models.IntegerField(blank=True, null=True)
     # 这个字段只有在题目是accepted 的时候才会用到，比赛题目的提交可能还会有得分等信息，存储在这里面
     accepted_answer_info = models.TextField(blank=True, null=True)
-    is_counted = models.BooleanField(default=False)
 
     class Meta:
         db_table = "submission"

submission/serializers.py

@@ -20,3 +20,10 @@ class SubmissionSerializer(serializers.ModelSerializer):
 
     def _get_submission_user(self, obj):
         return User.objects.get(id=obj.user_id).username
+
+
+class CreateContestSubmissionSerializer(serializers.Serializer):
+    contest_id = serializers.IntegerField()
+    problem_id = serializers.IntegerField()
+    language = serializers.IntegerField()
+    code = serializers.CharField(max_length=3000)

submission/views.py

@@ -1,21 +1,22 @@
 # coding=utf-8
 import json
-import redis
 
+import redis
 from django.shortcuts import render
+from django.core.paginator import Paginator
 
 from rest_framework.views import APIView
 
-from judge.judger.result import result
+from problem.models import Problem
 from judge.judger_controller.tasks import judge
 from judge.judger_controller.settings import redis_config
 from account.decorators import login_required
 from account.models import SUPER_ADMIN
-from problem.models import Problem
+from contest.models import Contest, ContestProblem
+from contest.decorators import check_user_contest_permission
 from utils.shortcuts import serializer_invalid_response, error_response, success_response, error_page, paginate
 from .models import Submission
-from .serializers import CreateSubmissionSerializer, SubmissionSerializer
+from .serializers import CreateSubmissionSerializer, SubmissionSerializer, CreateContestSubmissionSerializer
-from django.core.paginator import Paginator
 
 
 class SubmissionAPIView(APIView):
@@ -136,3 +137,44 @@ def my_submission_list_page(request, page=1):
     return render(request, "oj/submission/my_submissions_list.html",
                   {"submissions": current_page, "page": int(page),
                    "previous_page": previous_page, "next_page": next_page, "start_id": int(page) * 20 - 20})
+
+
+
+class ContestSubmissionAPIView(APIView):
+    @check_user_contest_permission
+    def post(self, request):
+        """
+        创建比赛的提交
+        ---
+        request_serializer: ConestSubmissionSerializer
+        """
+        serializer = CreateContestSubmissionSerializer(data=request.data)
+        if serializer.is_valid():
+            data = serializer.data
+            try:
+                contest = Contest.objects.get(id=data["contest_id"])
+            except Contest.DoesNotExist:
+                return error_response(u"比赛不存在")
+            try:
+                problem = ContestProblem.objects.get(contest=contest, id=data["problem_id"])
+                # 更新题目提交计数器
+                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"]),
+                                                   contest_id=contest.id, code=data["code"], problem_id=problem.id)
+            try:
+                judge.delay(submission.id, problem.time_limit, problem.memory_limit, problem.test_case_id)
+            except Exception:
+                return error_response(u"提交判题任务失败")
+
+            # 增加redis 中判题队列长度的计数器
+            r = redis.Redis(host=redis_config["host"], port=redis_config["port"], db=redis_config["db"])
+            r.incr("judge_queue_length")
+
+            return success_response({"submission_id": submission.id})
+
+        else:
+            return serializer_invalid_response(serializer)