I have a simple form in my app which contains manytomany field and an document uploader.
The data in this form is being sent as multipart/form-data
for e.g.
transaction_no: 5001
document: (binary)
items: [{"product":1,"quantity":"12","fault":"Repairable"}]
allotment: 2
The create function works perfectly fine but when I try to edit the data in this form I get an error The data sent during "editing" is similar to the data sent during "creation".
data:
transaction_no: 5001
items: [{"id":5,"quantity":"10","fault":"Repairable","product":1}]
allotment: 2
Serializer.py
class DeliveredItemsSerializer(serializers.ModelSerializer):
class Meta:
model = DeliveredItems
fields = "__all__"
class DeliveredSerializer(serializers.ModelSerializer):
items = DeliveredItemsSerializer(many=True, required=False)
class Meta:
model = Delivered
fields = "__all__"
def create(self, validated_data):
items_objects = validated_data.pop('items', None)
prdcts = []
try:
for item in items_objects:
i = DeliveredItems.objects.create(**item)
prdcts.append(i)
instance = Delivered.objects.create(**validated_data)
instance.items.set(prdcts)
return instance
except:
instance = Delivered.objects.create(**validated_data)
return instance
def update(self, instance, validated_data):
items_objects = validated_data.pop('items',None)
prdcts = []
for item in items_objects:
print("item", item)
fk_instance, created = DeliveredItems.objects.update_or_create(pk=item.get('id'), defaults=item)
prdcts.append(fk_instance.pk)
instance.items.set(prdcts)
instance = super(DeliveredSerializer, self).update(instance, validated_data)
return instance
Error:
'NoneType' object is not iterable
and this is the line of error:
for item in items_objects:
How come when I am sending the same data in exact same format is not received by the serializer during update?
