Save many metafields with a single request

There does not seem to be a way to attach metafields locally, and then simply save the product with the metafields along with it. I'm forced to use add_metafields() or Metafield().save(), both of which adds a single metafield per API call. This is very slow.

If I take a product with 50 metafields, and save it as a new product, it saves almost instantly, like so:

p = shopify.Product.find()[0]
print len(p.metafields())
> 50
p.id = None
p.images = None
p.save()

How can I attach metafields to a product in the same way they are attached when they are fetched?

首先跟踪 Product.save()、add_metafields() 和 Metafield().save()，以了解获取的 metafields 是如何表示和持久化的。当本地附加的 metafields 能够与新 product 一起通过一次 API 请求保存，并覆盖报告的多个 metafields 情况时，工作即告完成。