比赛

backend/competition/views.py

@@ -1,4 +1,4 @@
-from rest_framework import viewsets, permissions, status, filters
+from rest_framework import viewsets, permissions, status, filters, serializers
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from django.db.models import Q
@@ -107,6 +107,10 @@ class ProjectViewSet(viewsets.ModelViewSet):
         if competition_id:
             queryset = queryset.filter(competition_id=competition_id)
             
+        contestant_id = self.request.query_params.get('contestant')
+        if contestant_id:
+            queryset = queryset.filter(contestant_id=contestant_id)
+            
         # 如果是普通用户，只能看到已提交的项目，或者自己草稿的项目
         user = get_current_wechat_user(self.request)
         if user:
@@ -152,6 +156,10 @@ class ProjectViewSet(viewsets.ModelViewSet):
         except CompetitionEnrollment.DoesNotExist:
             raise serializers.ValidationError("您没有参赛资格或审核未通过")
             
+        # 检查是否已提交过项目
+        if Project.objects.filter(competition=competition, contestant=enrollment).exists():
+            raise serializers.ValidationError("您已提交过该比赛的项目，请勿重复提交")
+
         serializer.save(contestant=enrollment)
 
     @action(detail=True, methods=['post'])