GraphQL error: int() argument must be a string or a number, not 'list'

Question

我有这个突变：

export const SET_CART_MUTATION = gql`mutation setCartMutation($vendorSlug: String!, $sessionId: String, $productId:[Int!], $prices:[PriceInput]) {
  setCart(vendorSlug: $vendorSlug, sessionId: $sessionId, productId:$productId, prices:$prices) {
    cart {
      ${CART_FIELDS}
    }
    allTicketsAdded
  }
}`

我想创建一个 productId 数组，但是当我改变时：我得到：

Mutation error: Error: GraphQL error: int() argument must be a string or a number, not 'list'

我的 setCart class 是：

class SetCart(graphene.Mutation):
    class Arguments:
        vendor_slug = graphene.String()
        session_id = graphene.String()
        product_id = graphene.List(graphene.Int)
        prices = graphene.List(PriceInput)

感谢帮助，有问题请教

Answer 1

我解决了，

如果您有同样的错误，并且您确定突变参数与声明的类型相同：问题来自您的突变函数：

def mutate(self, info, vendor_slug, session_id, products, prices, participants):
        # ? List of products given
        products = Product.objects.get(id=product)
        cart = Order.objects.get_cart(
            vendor_slug, info.context.user, session_id)

错误来自Product.objects.get(id=product) 因为产品是一个数组更正：

products = [Product.objects.get(id=product) for product in products]

GraphQL error: int() argument must be a string or a number, not 'list'

GraphQL error: int() argument must be a string or a number, not 'list'

python

graphql

graphene-python