我在我的DataSerliazer
中有一个自定义验证函数,它检查两个参数(mrange,mthreshold)。验证功能检查发布时只需设置其中一个参数。Django Rest框架:对HTTP POST和PUT的不同验证
class DataSerializer(serializers.ModelSerializer):
emails = serializers.ListField(child = serializers.EmailField())
class Meta:
model = AIData
fields = ('id', 'name', 'created', 'username', 'token',
'expression','key','threshold' ,'evaluator', 'range','emails','metric_name', 'status')
def validate(self,attrs):
mrange = attrs.get("metric_range")
mthreshold = attrs.get("metric_threshold")
if (mrange == None or mrange == " ") and (mthreshold == None or mthreshold == " "):
raise serializers.ValidationError({'error': 'Cannot have both range and threshold empty'})
elif mrange != None and mthreshold != None:
raise serializers.ValidationError({'error': 'Cannot set both range and threshold'})
在我views.py文件
@api_view(['GET','PUT', 'DELETE'])
def ai_detail(request, token, id):
ai = None
try:
ai = AIData.objects.get(id=id)
except AIData.DoesNotExist:
return Response(status=status.HTTP_404_NOT_FOUND)
if request.method == 'GET':
serializer = DataSerializer(ai)
if serializer.data['token'] == token:
return Response(serializer.data)
else:
return Response({'error': 'Not allowed to access'}, status=status.HTTP_400_BAD_REQUEST)
elif request.method == 'PUT':
serializer = AlAnotherSerializerMethod(alert, data=request.data, partial=True)
if serializer.is_valid():
// updating code
目前,我必须写anthor AIAnotherSerializerMethod
,这样,它不隐式调用DataSerializer的验证功能。这是为了避免在创建对象时检查2个参数。一旦对象被创建,我不想再检查相同的功能。有没有更好的方法来做同样的事情?我最好避免为同一模型编写2个串行器。