我正在嘗試創建一個 API 對象 Roster，它有一個成員列表作為子對象。但是，我不想通過部分更新名冊對象來更新子對象——相反，我想要“添加成員”和“刪除成員”的路由。目標：GET /Roster/{ROSTERID}回復正文：{ id: {roster id}, members: # members sub object is read only [ {member subobject}, {member subobject}, ... ],}POST /Roster/{RosterID}/AddMember{ {member id}, {member id}, ...}然后是刪除成員的類似操作。注意：我希望能夠傳入現有的成員 ID。我不想在這里創建新成員。我應該在文檔中尋找什么才能添加路由來使用用戶 ID 更新成員列表，而不必傳入整個用戶對象？serializers.pyclass UserSerializer(serializers.ModelSerializer): class Meta: model = User fields = ['url', 'username', 'email', 'groups']class RosterSerializer(serializers.ModelSerializer): members = serializers.ListField( child=UserSerializer() ) class Meta: model = Roster fields = ('id', 'name', 'members') depth = 2app/models.pyclass Members(User): on_pto = models.BooleanField(default=False)class Roster(models.Model): objects = models.Manager() name = models.CharField(max_length=80, blank=True, default='', unique=True, null='') members = models.ForeignKey( Members, limit_choices_to={'on_pto': False}, blank=True, null=True, related_name='members', on_delete=models.CASCADE )views.pyclass UserViewSet(viewsets.ModelViewSet): """ API endpoint that allows users to be viewed or edited. """ queryset = User.objects.all().order_by('-date_joined') serializer_class = UserSerializerclass GroupViewSet(viewsets.ModelViewSet): """ API endpoint that allows groups to be viewed or edited. """ queryset = Group.objects.all().order_by('-id') serializer_class = GroupSerializerclass RosterViewSet(viewsets.ModelViewSet): """""" queryset = Roster.objects.all().order_by('-id') serializer_class = RosterSerializer
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TA貢獻1802條經驗 獲得超5個贊
您可能需要更改模型以允許 roster 有多個成員，或者為 roster 執行多對多或將 FK 關系放在用戶身上。因此，您可以為一個名冊添加多個成員。
為此，您可以使用這樣的自定義路線。下面顯示 add_member 和 remove_member 類似，修改為從 members_set 中刪除名冊對象。
class RosterViewSet(viewsets.ModelViewSet):
queryset = Roster.objects.all().order_by('-id')
serializer_class = RosterSerializer
@action(detail=True, methods=['post'])
def add_member(self, request, pk=None):
errors = []
response = {}
roster = self.get_object()
members_dict = request.data['members']
if not isinstance(members_dict, list):
errors.append("Invalid request format")
else:
for id in members_dict:
try:
member = User.objects.get(pk=id)
roster.members.add(member)
roster.save()
status_code = status.HTTP_200_OK
except Member.DoesNotExist:
errors.append("Member id {} not found".format(id))
if errors:
response['errors'] = errors
status_code = status.HTTP_400_BAD_REQUEST
return response.Response(response, status=status_code)
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