feat: 城市手册后端完成 - 用户/区域/内容/服务/审核系统

city-manual/backend/regions/views.py

@@ -0,0 +1,107 @@
+from rest_framework import viewsets, permissions, status
+from rest_framework.response import Response
+from rest_framework.decorators import action
+from django.utils import timezone
+from .models import Region, ModeratorApplication, ModeratorPermission, ModeratorSupport
+from .serializers import RegionSerializer, RegionDetailSerializer, ModeratorApplicationSerializer, ModeratorPermissionSerializer
+
+
+class RegionViewSet(viewsets.ModelViewSet):
+    queryset = Region.objects.filter(is_active=True)
+    serializer_class = RegionSerializer
+    permission_classes = [permissions.AllowAny]
+    
+    def get_serializer_class(self):
+        if self.action == 'retrieve':
+            return RegionDetailSerializer
+        return RegionSerializer
+    
+    @action(detail=False, methods=['get'])
+    def provinces(self, request):
+        provinces = Region.objects.filter(level='province', is_active=True)
+        serializer = self.get_serializer(provinces, many=True)
+        return Response(serializer.data)
+    
+    @action(detail=True, methods=['get'])
+    def children(self, request, pk=None):
+        region = self.get_object()
+        children = region.children.filter(is_active=True)
+        serializer = self.get_serializer(children, many=True)
+        return Response(serializer.data)
+
+
+class ModeratorApplicationViewSet(viewsets.ModelViewSet):
+    queryset = ModeratorApplication.objects.all()
+    serializer_class = ModeratorApplicationSerializer
+    permission_classes = [permissions.IsAuthenticatedOrReadOnly]
+    
+    def perform_create(self, serializer):
+        application = serializer.save(applicant=self.request.user)
+        # 设置默认截止时间为 7 天后
+        application.deadline = timezone.now() + timezone.timedelta(days=7)
+        application.save()
+    
+    @action(detail=True, methods=['post'])
+    def support(self, request, pk=None):
+        application = self.get_object()
+        user = request.user
+        
+        # 检查是否已经支持过
+        if ModeratorSupport.objects.filter(supporter=user, application=application).exists():
+            return Response({'detail': '已经支持过该申请'}, status=status.HTTP_400_BAD_REQUEST)
+        
+        # 创建支持记录
+        ModeratorSupport.objects.create(supporter=user, application=application)
+        application.support_count += 1
+        application.save()
+        
+        return Response({'support_count': application.support_count})
+    
+    @action(detail=True, methods=['post'])
+    def approve(self, request, pk=None):
+        application = self.get_object()
+        user = request.user
+        
+        # 检查权限
+        if not user.is_staff:
+            return Response({'detail': '没有权限'}, status=status.HTTP_403_FORBIDDEN)
+        
+        application.status = 'approved'
+        application.reviewer = user
+        application.reviewed_at = timezone.now()
+        application.save()
+        
+        # 创建版主权限
+        ModeratorPermission.objects.create(
+            moderator=application.applicant,
+            region=application.region,
+            rank=self._get_rank_by_level(application.region.level)
+        )
+        
+        return Response({'detail': '申请已批准'})
+    
+    @action(detail=True, methods=['post'])
+    def reject(self, request, pk=None):
+        application = self.get_object()
+        user = request.user
+        
+        if not user.is_staff:
+            return Response({'detail': '没有权限'}, status=status.HTTP_403_FORBIDDEN)
+        
+        application.status = 'rejected'
+        application.reviewer = user
+        application.reviewed_at = timezone.now()
+        application.review_comment = request.data.get('comment', '')
+        application.save()
+        
+        return Response({'detail': '申请已拒绝'})
+    
+    def _get_rank_by_level(self, level):
+        rank_map = {
+            'province': 'general',
+            'city': 'colonel',
+            'county': 'lieutenant',
+            'town': 'soldier',
+            'village': 'soldier',
+        }
+        return rank_map.get(level, 'soldier')