It was working fine when I created order object from orderitem objects using validated.pop() function. Now, I have another model for BillingDetails that needs to be created as well which has a foreign key to Order model.
Now front end is sending chunks of data which contains orderitems data and also billingdetails at the same time. And I have to create Order object creating Orderitem objects and BillingDetails object at the same time.
I have tried writing this but got error on api call on Postman.
My models:
class Order(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, blank=True)
start_date = models.DateTimeField(auto_now_add=True)
ordered_date = models.DateTimeField()
ordered = models.BooleanField(default=False)
def __str__(self):
return self.user.email
class OrderItem(models.Model):
order = models.ForeignKey(Order,on_delete=models.CASCADE, blank=True,null=True,related_name='order_items')
item = models.ForeignKey(Product, on_delete=models.CASCADE,blank=True, null=True)
quantity = models.IntegerField(default=1)
def __str__(self):
return f"{self.quantity} items of {self.item} of {self.order.user}"
class BillingDetails(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, blank=True)
order = models.OneToOneField(Order, on_delete=models.CASCADE, blank=True, null=True, related_name='billing_details')
first_name = models.CharField(max_length=50,blank=True,null=True)
last_name = models.CharField(max_length=50, blank=True, null=True)
email = models.EmailField(blank=True, null=True)
phone = models.CharField(max_length=50,blank=True,null=True)
country = models.CharField(max_length=50,blank=True,null=True)
city = models.CharField(max_length=50,blank=True,null=True)
address = models.CharField(max_length=100,blank=True,null=True)
postal = models.CharField(max_length=50,blank=True,null=True)
def __str__(self):
return self.address
My view:
class AddtoOrderItemView(ListCreateAPIView):
permission_classes = [IsAuthenticated]
queryset = OrderItem.objects.all()
serializer_class = OrderSerializer
My serializer (Initially):
class OrderSerializer(serializers.ModelSerializer):
order_items = OrderItemSerializer(many=True)
user = serializers.PrimaryKeyRelatedField(read_only=True, default=serializers.CurrentUserDefault())
class Meta:
model = Order
fields = ['id','user','start_date', 'ordered_date', 'ordered', 'order_items']
# depth = 1
def create(self, validated_data):
user = self.context['request'].user
order_items = validated_data.pop('order_items')
order = Order.objects.create(user=user,**validated_data)
for order_items in order_items:
OrderItem.objects.create(order=order,**order_items)
return order
It was working fine until now, I was able to order object while creating orderitems at the same time. Now when I popped billing deatils data and tried to create one, I got this Expected a dictionary, but got list. on Postman.
My serializer (Now)
class OrderSerializer(serializers.ModelSerializer):
billing_details = BillingDetailsSerializer(many=False)
order_items = OrderItemSerializer(many=True)
user = serializers.PrimaryKeyRelatedField(read_only=True, default=serializers.CurrentUserDefault())
class Meta:
model = Order
fields = ['id','user','start_date', 'ordered_date', 'ordered', 'order_items','billing_details']
# depth = 1
def create(self, validated_data):
user = self.context['request'].user
order_items = validated_data.pop('order_items')
billing_details = validated_data.pop('billing_details')
order = Order.objects.create(user=user,**validated_data)
BillingDetails.objects.create(user=user,**billing_details)
for order_items in order_items:
OrderItem.objects.create(order=order,**order_items)
return order
How to resolve this??