forked from erp-dev/erp
122 lines
3.8 KiB
Python
122 lines
3.8 KiB
Python
"""
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通用文件上传视图
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"""
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from rest_framework import viewsets, status
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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 rest_framework.permissions import IsAuthenticated
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from rest_framework.parsers import MultiPartParser, FormParser
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from api_v1.models import UploadedFile
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from api_v1.serializers import UploadedFileSerializer, FileUploadSerializer
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class UploadFileViewSet(viewsets.GenericViewSet,
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viewsets.mixins.CreateModelMixin,
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viewsets.mixins.RetrieveModelMixin,
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viewsets.mixins.DestroyModelMixin):
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"""
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通用文件上传 ViewSet
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用于上传无法归类到具体业务的文件
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retrieve: 获取单个文件信息
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create: 上传新文件
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destroy: 软删除文件
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注意：不支持列表查询和修改操作
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"""
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queryset = UploadedFile.objects.all()
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serializer_class = UploadedFileSerializer
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permission_classes = [IsAuthenticated]
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parser_classes = [MultiPartParser, FormParser]
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def get_queryset(self):
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"""默认不显示已删除的文件"""
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queryset = super().get_queryset()
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# 过滤掉已删除的文件
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queryset = queryset.filter(is_deleted=False)
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return queryset
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def perform_create(self, serializer):
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"""创建时自动设置 owner"""
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uploaded_file = self.request.FILES.get('file')
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# 保存文件并记录元数据
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serializer.save(
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owner=self.request.user,
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original_filename=uploaded_file.name,
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file_size=uploaded_file.size,
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content_type=uploaded_file.content_type
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)
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def create(self, request, *args, **kwargs):
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"""
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上传文件
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使用 multipart/form-data 格式上传
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"""
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# 验证上传的文件
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upload_serializer = FileUploadSerializer(data=request.data)
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upload_serializer.is_valid(raise_exception=True)
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# 创建文件记录
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file_serializer = self.get_serializer(data={'path': request.FILES['file']})
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file_serializer.is_valid(raise_exception=True)
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self.perform_create(file_serializer)
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headers = self.get_success_headers(file_serializer.data)
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return Response(
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file_serializer.data,
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status=status.HTTP_201_CREATED,
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headers=headers
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)
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def destroy(self, request, *args, **kwargs):
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"""软删除文件（标记为已删除，不实际删除）"""
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instance = self.get_object()
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instance.is_deleted = True
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instance.save()
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return Response(
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{'detail': '文件已标记为删除'},
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status=status.HTTP_200_OK
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)
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@action(detail=True, methods=['post'])
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def restore(self, request, pk=None):
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"""恢复已删除的文件"""
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instance = self.get_object()
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if not instance.is_deleted:
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return Response(
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{'detail': '文件未被删除，无需恢复'},
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status=status.HTTP_400_BAD_REQUEST
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)
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instance.is_deleted = False
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instance.save()
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serializer = self.get_serializer(instance)
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return Response({
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'detail': '文件已恢复',
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'data': serializer.data
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})
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@action(detail=True, methods=['delete'])
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def permanent_delete(self, request, pk=None):
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"""永久删除文件（物理删除）"""
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instance = self.get_object()
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# 删除物理文件
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if instance.path:
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instance.path.delete(save=False)
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# 删除数据库记录
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instance.delete()
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return Response(
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{'detail': '文件已永久删除'},
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status=status.HTTP_204_NO_CONTENT
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)
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