Django Rest Framework how to save a manyToMany with Related Field - django

Question

I have some problem with Django Rest Framework and manyToMany relation with Related Field. Whenn i list I have a error and when I save, it fill data in databasebut it cant display the result.
My model.py
class Product(models.Model):
name = models.CharField(max_length=100,unique=True)
description = models.TextField()
price = models.DecimalField(max_digits=9,decimal_places=3)
created = models.DateTimeField(auto_now_add=True)
edited = models.DateTimeField(auto_now_add=True)
state = models.ForeignKey('ProductState', default=1)
tax = models.ForeignKey('Tax')
categories = models.ManyToManyField('ProductCategory')
class OrderProduct(models.Model):
product = models.ForeignKey(Product, on_delete=models.CASCADE)
order = models.ForeignKey(Order, on_delete=models.CASCADE)
qty = models.IntegerField()
tax = models.ForeignKey('Tax')
class Order(models.Model):
ref = models.CharField(max_length=100,blank=True)
created = models.DateTimeField(auto_now_add=True)
state = models.ForeignKey('OrderState')
user = models.ForeignKey(User)
orderproducts = models.ManyToManyField(Product, through='OrderProduct')
my serializer.py
class OrderProductSerializer(serializers.ModelSerializer):
product = ProductSerializer(required=True)
class Meta:
model = OrderProduct
exclude = ()
read_only_fields = ('order','tax',)
def create(self, validated_data):
product = validated_data.pop('product')
return OrderProduct.objects.create(tax=product['product'].tax, **product)
class OrderSerializer(serializers.ModelSerializer):
orderproducts = OrderProductSerializer(many=True, required=True)
def create(self, validated_data):
products = validated_data.pop('orderproduct')
order = Order.objects.create(**validated_data)
for product in products:
op = OrderProduct.objects.create(product=product['product'], tax=product['product'].tax, order=order, qty=product['qty'] )
op.save()
order.save()
return order;
class Meta:
model = Order
exclude = ()
read_only_fields = ()
class ProductSerializer(serializers.ModelSerializer):
categories = ProductCategorySerializer(many=True, required=True)
tax = TaxSerializer(many=False, required=True)
state = OrderStateSerializer(many=False, required=False)
class Meta:
model = Product
exclude = ()
and my view.py
class ClientOrderViewSet(viewsets.ModelViewSet):
queryset = Order.objects.all()
serializer_class = OrderSerializer
when i try to list I get this error:
Exception Type: AttributeError at /api/order/
Exception Value: Got AttributeError when attempting to get a value for field product on serializer OrderProductSerializer.
The serializer field might be named incorrectly and not match any attribute or key on the Product instance.
Original exception text was: 'Product' object has no attribute 'product'.
Request information: