The MultiValueDictKeyError arises when you try to access the non-existent key in the MultiValueDict object.
For example: when accessing a non-existing key in the request.POST.
The
MultiValueDictin django is a subclass of dictionay data structure that is customized to handle multiple values for the same key.
There are two quick solutions to this error.
Check if Key Exists Before Accessing
Use the in operator to check whether the dictionary object has the particular key or not.
if 'key' in request.POST:
vaule = request.POST['key']Use the get() Method with a Default Value
Use the dict.get('key', 'default') method by providing the default value. This default value will be returned if the specificed key does not exist in the MultiValueDict object.
value = request.POST.get('key', None)
Hello Adarsh,
value = request.POST.get(‘key’, None) while using this in my code it worked , but can we pass a variable instead of None.
Yes.
Hello Adash can u help me with MultiValueDictKeyError error, my code
class CompanyViewSet(viewsets.ModelViewSet):
queryset = Company.objects.all()
filter_backends = [DjangoFilterBackend, ]
filterset_class = CompanyFilter
permission_classes = [IsActivePermission, IsActivePermission, ]
serializer_class = CompanySerializer
def create(self, request, *args, **kwargs):
data = request.data
new_company = Company.objects.create(
type=request.data[“type”],
hierarchy=data[“hierarchy”],
name=data[“name”],
email=data[“email”],
country=data[“country”],
city=data[“city”],
street=data[“street”],
building_number=data[“building_number”],
network=Network.objects.get(id=data[“network_id”]),
provider=Company.objects.get_or_none(id=data[“provider_id”])
)
new_company.save()
for product in data[“products”]:
product_obj = Product.objects.get(name=product[‘name’])
new_company.products.add(product_obj)
serializer = CompanySerializer(new_company)
return Response(serializer.data)
MultiValueDictKeyError occurs when you are accessing the key which is not present in dictionary.
Try using .get(‘key’)
Ty