Shopify API Variant not being returned with product_id attribute

问题

So I'm using the Shopify Gem to access the Shopify API and noticed that the product_id attribute is not being returned within the response body for a simple ShopifyAPI::Variant.find call.

1.9.3p194> ShopifyAPI::Variant.find(209901733)
 => #<ShopifyAPI::Variant:0x007fbf7225d3f0 @attributes={"barcode"=>nil, "compare_at_price"=>"198.00", "created_at"=>"2012-03-23T14:11:39+11:00", "fulfillment_service"=>"manual", "grams"=>1000, "id"=>209901733, "inventory_management"=>"shopify", "inventory_policy"=>"deny", "option1"=>"38", "option2"=>"Ivory Mini Twill", "option3"=>nil, "position"=>16, "price"=>"198.00", "requires_shipping"=>true, "sku"=>"3063", "taxable"=>true, "title"=>"38 / Ivory Mini Twill", "updated_at"=>"2013-04-24T10:25:27+10:00", "inventory_quantity"=>2}, @prefix_options={}, @persisted=true>

According to the new documentation that has been published here, the product_id field should be returned.

GET /admin/variants/#{id}.json
Hide Response
HTTP/1.1 200 OK

{
  "variant": {
    "barcode": "1234_pink",
    "compare_at_price": null,
    "created_at": "2013-05-01T15:35:21-04:00",
    "fulfillment_service": "manual",
    "grams": 200,
    "id": 808950810,
    "inventory_management": "shopify",
    "inventory_policy": "continue",
    "option1": "Pink",
    "option2": null,
    "option3": null,
    "position": 1,
    "price": "199.00",
    "product_id": 632910392,
    "requires_shipping": true,
    "sku": "IPOD2008PINK",
    "taxable": true,
    "title": "Pink",
    "updated_at": "2013-05-01T15:35:21-04:00",
    "inventory_quantity": 10
  }
}

回答1:

It is in the json, but not in the ActiveResource that is created from the json. The reason is this code in the Variant activeresource:

    self.prefix = "/admin/products/:product_id/"

    def self.prefix(options={})
      options[:product_id].nil? ? "/admin/" : "/admin/products/#{options[:product_id]}/"
    end

If you want you can make your own class for fetching singleton Variants:

      module ShopifyAPI
        class VariantWithProduct < Base
          self.prefix = "/admin/"
          self.element_name = "variant"
          self.collection_name = "variants"
        end
      end

and use this class to fetch single variants by id:

    ShopifyAPI::VariantWithProduct.find(xxxxxx)

回答2:

Michael is correct in his diagnosis of the problem. For me, the easiest way around this was to get the product resource instead of the variant. The ShopifyAPI::Product ActiveResource object does include variants.

product = ShopifyAPI::Product.find(product_id)
variant = product.variants.find { |v| v.id == variant_id }

来源：https://stackoverflow.com/questions/16534912/shopify-api-variant-not-being-returned-with-product-id-attribute

标签

ruby-on-rails

shopify