Validation fail - field is required. ManyToMany serialization Django - django

Question

I have form data that I want to serialize to create two objects, Account and AccountClub. AccountClub is the in between table between Account and Club with additional fields, rakeback and chip_value.
I can serialize the formdata but when i call the is.valid() function before saving, I get returned an error with the manytomany fields empty
Here is my models:
class Account(models.Model):
nickname = models.CharField(max_length=64)
club_account_id = models.IntegerField()
agent_players = models.ManyToManyField(
AgentPlayer, related_name="accounts")
clubs = models.ManyToManyField(
Club, through='AccountClub', related_name='accounts')
def __str__(self):
return f"{self.nickname} ({self.club_account_id})"
class AccountClub(models.Model):
account = models.ForeignKey(
Account, on_delete=models.CASCADE, related_name='club_deal')
club = models.ForeignKey(
Club, on_delete=models.CASCADE, related_name='account_deal')
rakeback_percentage = models.DecimalField(
max_digits=3, decimal_places=3, validators=[MinValueValidator(Decimal('0.01'))])
chip_value = models.DecimalField(max_digits=3, decimal_places=2, validators=[
MinValueValidator(Decimal('0.01'))])
def __str__(self):
return f"{self.account.nickname} belongs to {self.club.name} with rakeback of {self.rakeback_percentage} and chip value of {self.chip_value}"
Serializers:
class AgentPlayerSerializer(serializers.ModelSerializer):
class Meta:
model = AgentPlayer
fields = "__all__"
class ClubSerializer(serializers.ModelSerializer):
agent_players = AgentPlayerSerializer(many=True)
class Meta:
model = Club
fields = '__all__'
class AccountSerializer(serializers.ModelSerializer):
agent_players = AgentPlayerSerializer(many=True)
clubs = ClubSerializer(many=True)
class Meta:
model = Account
fields = [
'nickname',
'club_account_id',
'agent_players',
'clubs',
]
def create(self, validated_data):
rakeback_percentage = validated_data.pop('rakeback_percentage')
chip_value = validated_data.pop('chip_value')
club = validated_data.club
account = Account.objects.create(**validated_data)
account.account_club.rakeback_percentage = rakeback_percentage
account.account_club.chip_value = chip_value
AccountClub.create(account=account, club=club,
rakeback_percentage=rakeback_percentage, chip_value=chip_value)
return account
views.py:
def create_account(request):
data = FormParser().parse(request)
serializer = AccountSerializer(data=data)
if serializer.is_valid():
serializer.save()
next = request.POST.get('next', '/')
return HttpResponseRedirect(next, status=201)
return JsonResponse(serializer.errors, status=400)

Answer 1

your clubs field on the Account model is not blank=True so you can not create an account without at least a club. so you can not do
account = Account.objects.create(**validated_data)
and then do
AccountClub.create(account=account, club=club, rakeback_percentage=rakeback_percentage, chip_value=chip_value)
you may change your Account model code to:
clubs = models.ManyToManyField(Club, through='AccountClub', blank=True, related_name='accounts')
also checkout these links:
https://stackoverflow.com/a/6996358/6484831
https://stackoverflow.com/a/10116452/6484831