How do I delete a collection in Django Rest Api?
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20-12-2019 - |
Question
I've been trying for a while now to get 'DELETE' to work when reading a collection in Django Api View. I've been using 'ListCreateAPIView' and that only provides get and post method handlers. Does anyone know how to fix this?
My view:
class NotepadDetail(generics.ListCreateAPIView):
model = Session
serializer_class = SessionSerializer
def get_queryset(self):
user=self.request.user
notepad = self.kwargs['notepad_pk']
return Session.objects.filter(user=user, notepad=notepad)
def pre_save(self, obj):
obj.user = self.request.user
obj.notepad = get_object_or_404(Notepad, user=self.request.user, pk=self.kwargs['notepad_pk'])
Solution
Solved it by adding:
def get_object(self, notepad_pk):
try:
return Notepad.objects.get(user=self.request.user, pk=notepad_pk)
except Notepad.DoesNotExist:
raise Http404
def delete(self, request, notepad_pk, format=None):
object = self.get_object(notepad_pk)
object.delete()
return Response(status=status.HTTP_204_NO_CONTENT)
OTHER TIPS
You can use a DestroyModelMixin
:
class NotepadDetail(generics.DestroyModelMixin,
generics.ListCreateAPIView):
model = Session
serializer_class = SessionSerializer
def get_queryset(self):
user=self.request.user
notepad = self.kwargs['notepad_pk']
return Session.objects.filter(user=user, notepad=notepad)
def pre_save(self, obj):
obj.user = self.request.user
obj.notepad = get_object_or_404(Notepad, user=self.request.user, pk=self.kwargs['notepad_pk'])
def delete(self, request, *args, **kwargs):
return self.destroy(request, *args, **kwargs)
The self.destroy
method provided by the DestroyModelMixin
will handle the object deletion, will correctly raise the pre_delete
and post_delete
signals, and will return the 204 NO CONTENT
status.
def delete(self, request, pk, format=None):
event = self.get_object(pk)
event.delete()
return Response("Object Deleted")
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