Initial commit: React + Django 城市手册项目
- Django 4.2 + DRF + JWT + GraphQL - React 18 + MobX + styled-components - PostgreSQL 数据库 - Docker + Docker Compose + Nginx - 完整的功能模块（用户、版块、文章、服务、交互、版主管理） - 完整的文档（需求、部署、测试）
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mashen
141
backend/apps/regions/views.py
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141
backend/apps/regions/views.py
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from rest_framework import viewsets, permissions, filters
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from rest_framework.decorators import action
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from rest_framework.response import Response
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from django.shortcuts import get_object_or_404
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from .models import Region
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from .serializers import (
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RegionSerializer,
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RegionDetailSerializer,
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RegionTreeSerializer
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)
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from apps.interactions.models import Rating, Favorite
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class RegionViewSet(viewsets.ModelViewSet):
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"""ViewSet for Region model."""
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queryset = Region.objects.filter(status='active')
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permission_classes = [permissions.IsAuthenticatedOrReadOnly]
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filter_backends = [filters.SearchFilter, filters.OrderingFilter]
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search_fields = ['name']
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ordering_fields = ['name', 'level', 'created_at']
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ordering = ['level', 'name']
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def get_serializer_class(self):
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if self.action == 'retrieve':
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return RegionDetailSerializer
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elif self.action == 'tree':
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return RegionTreeSerializer
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return RegionSerializer
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def perform_create(self, serializer):
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# Only admin can create regions
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if not self.request.user.is_admin():
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from rest_framework.exceptions import PermissionDenied
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raise PermissionDenied("Only admins can create regions")
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serializer.save()
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def perform_update(self, serializer):
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# Only admin can update regions
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if not self.request.user.is_admin():
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from rest_framework.exceptions import PermissionDenied
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raise PermissionDenied("Only admins can update regions")
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serializer.save()
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@action(detail=False, methods=['get'])
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def provinces(self, request):
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"""Get all provinces (top-level regions)."""
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provinces = self.queryset.filter(parent__isnull=True)
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serializer = self.get_serializer(provinces, many=True)
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return Response(serializer.data)
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@action(detail=True, methods=['get'])
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def children(self, request, pk=None):
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"""Get children of a region."""
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region = self.get_object()
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children = region.get_children()
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serializer = self.get_serializer(children, many=True)
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return Response(serializer.data)
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@action(detail=True, methods=['get'])
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def path(self, request, pk=None):
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"""Get full path of a region."""
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region = self.get_object()
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path = []
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current = region
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while current:
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serializer = self.get_serializer(current)
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path.insert(0, serializer.data)
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current = current.parent
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return Response(path)
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@action(detail=False, methods=['get'])
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def tree(self, request):
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"""Get region tree structure."""
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root_regions = self.queryset.filter(parent__isnull=True)
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serializer = RegionTreeSerializer(root_regions, many=True)
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return Response(serializer.data)
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@action(detail=True, methods=['get'])
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def articles(self, request, pk=None):
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"""Get articles for a region."""
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region = self.get_object()
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articles = region.articles.filter(publish_status='published')
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from apps.articles.serializers import ArticleListSerializer
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serializer = ArticleListSerializer(articles, many=True)
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return Response(serializer.data)
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@action(detail=True, methods=['get'])
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def services(self, request, pk=None):
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"""Get featured services for a region."""
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region = self.get_object()
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services = region.featured_services.filter(publish_status='published')
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from apps.featured_services.serializers import FeaturedServiceListSerializer
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serializer = FeaturedServiceListSerializer(services, many=True)
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return Response(serializer.data)
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@action(detail=True, methods=['get'])
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def stats(self, request, pk=None):
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"""Get statistics for a region."""
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region = self.get_object()
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return Response({
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'articles_count': region.articles.filter(publish_status='published').count(),
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'services_count': region.featured_services.filter(publish_status='published').count(),
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'children_count': region.children.count(),
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})
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@action(detail=True, methods=['post'])
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def rate(self, request, pk=None):
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"""Rate a region."""
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region = self.get_object()
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serializer = RatingCreateSerializer(data=request.data)
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if serializer.is_valid():
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serializer.save(target_type='region', target_id=region.id)
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return Response({'message': 'Rating saved'}, status=201)
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return Response(serializer.errors, status=400)
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@action(detail=True, methods=['get'])
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def my_rating(self, request, pk=None):
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"""Get user's rating for a region."""
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region = self.get_object()
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try:
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rating = Rating.objects.get(
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user=request.user,
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target_type='region',
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target_id=region.id
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)
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return Response({'score': rating.score})
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except Rating.DoesNotExist:
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return Response({'score': None})
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@action(detail=True, methods=['post'])
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def favorite(self, request, pk=None):
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"""Favorite or unfavorite a region."""
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region = self.get_object()
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serializer = FavoriteCreateSerializer(data=request.data)
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if serializer.is_valid():
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result = serializer.save(target_type='region', target_id=region.id)
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if result is None:
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return Response({'message': 'Unfavorited'}, status=200)
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return Response({'message': 'Favorited'}, status=201)
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return Response(serializer.errors, status=400)
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