def update(self, request, *args, **kwargs):
# get_object 是 DRF 包装的一个函数，会在找不到的时候 raise 404 error
# 所以这里无需做额外判断
comment = self.get_object()
serializer = CommentSerializerForUpdate(
instance=comment,
data=request.data,
)
if not serializer.is_valid():
return Response(
{
'success': False,
'message': 'Please check input.',
'errors': serializer.errors,
},
status=status.HTTP_400_BAD_REQUEST)
# save 方法会触发 serializer 里的 update 方法，点进 save 的具体实现里可以看到
# save 是根据 instance 参数有没有传来决定是触发 create 还是 update
comment = serializer.save()
return Response(
CommentSerializer(comment, context={
'request': request
}).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
# feed the comment instance to the serializer to update
# if not feed instance, serializer create object
comment = self.get_object()
serializer = CommentSerializerForUpdate(
data=request.data,
instance=comment,
)
# validate the input of the update
if not serializer.is_valid():
return Response(
{
'success': False,
'message': 'Invalid Comment Update Input',
'error': serializer.errors,
},
status=status.HTTP_400_BAD_REQUEST)
# save the update
updated_comment = serializer.save()
serializer = CommentSerializer(
instance=updated_comment,
context={'request': request},
)
return Response(serializer.data, status=status.HTTP_200_OK)
def update(self, request, *args, **kwargs):
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data=request.data,
)
if not serializer.is_valid():
return Response({
'message': 'Please check input'
}, status=status.HTTP_400_BAD_REQUEST)
comment = serializer.save()
return Response(
CommentSerializer(comment, context={'request': request}).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data=request.data
)
if not serializer.is_valid():
return Response({
"success": False,
"message": "Please check inputs.",
"errors": serializer.errors,
}, status=HTTP_400_BAD_REQUEST)
comment = serializer.save()
return Response(CommentSerializer(comment).data, status=HTTP_200_OK)
def update(self, request, *args, **kwargs):
# get_object will raise 404 error if not found
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data=request.data,
)
if not serializer.is_valid():
raise Response({'message': 'Please check input'},
status=status.HTTP_400_BAD_REQUEST)
comment = serializer.save()
return Response(
CommentSerializer(comment).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
# get_object is DRF wrapped method, raise 404 error when cannot find
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data=request.data,
)
if not serializer.is_valid():
return Response({
'message': 'Please check input.'
}, status=status.HTTP_400_BAD_REQUEST)
# save() will trigger update()
# save() depends on instance has param or not to decide create() or update()
comment = serializer.save()
return Response(
CommentSerializer(comment, context={'request': request}).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
# get_object is a wrapped function in DRF, will raise 404 error when the object cannot be found
# so no need to do extra check whether the comment object exists
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data=request.data,
)
if not serializer.is_valid():
return Response({
'message': 'Please check input',
}, status=status.HTTP_400_BAD_REQUEST)
# save will trigger the update method of the serializer
# whether to trigger create() or update() depends on the existence of the parameter instance
comment = serializer.save()
return Response(
CommentSerializer(comment, context={'request': request}).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
serializer = CommentSerializerForUpdate(instance=self.get_object(),
data=request.data)
if not serializer.is_valid():
return Response(
{
'message': 'Please check input',
'error': serializer.errors,
},
status=400)
comment = serializer.save()
return Response(
{
'success': True,
'comment': CommentSerializer(comment).data,
},
status=200)
def update(self, request, *args, **kwargs):
# get_object 是DRF包装的一个函数，会在找不到的时候，raise 404 error
# 所以这里无需做额外的判断
serializer = CommentSerializerForUpdate(
instance=self.get_object(),
data = request.data,
)
if not serializer.is_valid():
return Response({
'message': 'Please check input',
}, status=status.HTTP_400_BAD_REQUEST)
# save 的方法会触发 serializer 里面的 update 方法，点进save的具体实现里面可以看到
# save 是根据 instance 参数有没有传来巨鼎是触发 create 还是 update
comment = serializer.save()
return Response(
CommentSerializer(
comment,
context = {'request': request},
).data,
status=status.HTTP_200_OK,
)
def update(self, request, *args, **kwargs):
# get_object is a function wrapped by DRF. It will use filter id to
# filter object out of queryset, raise 404 error when not found
# There is no extra code needed
comment = self.get_object()
serializer = CommentSerializerForUpdate(
instance=comment,
data=request.data,
)
if not serializer.is_valid():
raise Response({'message': 'Please check input'},
status=status.HTTP_400_BAD_REQUEST)
# save() will trigger update() in serializer, click into save() to see
# implementation
# save() will trigger create() or update() based on whether instance
# param is filled or not
comment = serializer.save()
return Response(
CommentSerializer(comment, context={
'request': request
}).data,
status=status.HTTP_200_OK,
)