Ruby on rails 什么'；在Rails中迭代此结构的最佳方式是什么？

我是rails的新手，不知道如何遍历这些数据。这是集成etsy API的gem的输出。它看起来像一组散列，也许

output=[#<Etsy::Listing:0x5551ba8 @result={"listing_id"=>182661496, "title"=>"Edible Butterflies in Coral", "quantity"=>1, "price"=>"12.50", "ending_tsz"=>1405362199, "shipping_template_id"=>nil, "MainImage"=>{"url_75x75"=>"https://img1.etsystatic.com/036/0/8545731/il_75x75.576542775_ibud.jpg"}}, @token="token", @secret="secret">, 
#<Etsy::Listing:0x5551bc0 @result={"listing_id"=>182671909, "title"=>"Marshmallow Sampler Pack", "quantity"=>3, "price"=>"9.50", "ending_tsz"=>1405362468, "shipping_template_id"=>1680751676, "MainImage"=>{"url_75x75"=>"https://img1.etsystatic.com/021/0/8545731/il_75x75.576544537_n2zo.jpg"}}, @token="token", @secret="secret">, 
#<Etsy::Listing:0x5551bf0 @result={"listing_id"=>182663346, "title"=>"Gourmet popcorn and seasoning kit", "quantity"=>15, "price"=>"26.95", "ending_tsz"=>1405363087, "shipping_template_id"=>nil, "MainImage"=>{"url_75x75"=>"https://img0.etsystatic.com/026/0/8545731/il_75x75.576428850_r1mv.jpg"}}, @token="token", @secret">, 
#<Etsy::Listing:0x5551c08 @result={"listing_id"=>189414412, "title"=>"Sailor Tote Bag", "quantity"=>45, "price"=>"50.00", "ending_tsz"=>1410586221, "shipping_template_id"=>1024284528, "MainImage"=>{"url_75x75"=>"https://img0.etsystatic.com/039/0/8545731/il_75x75.576443100_slse.jpg"}}, @token="token", @secret="secret">]

output=[#182661496，“title”=>“珊瑚中的可食用蝴蝶”，“数量”=>1，“价格”=>“12.50”，“ending#tsz”=>1405362199，“shipping#u模板id”=>nil，“main image”=>{“url#u 75x75”=>”https://img1.etsystatic.com/036/0/8545731/il_75x75.576542775_ibud.jpg“}，@token=”token“，@secret=”secret“>，
#182671909，“标题”=>“棉花糖采样器包”，“数量”=>3，“价格”=>“9.50”，“收尾”=>1405362468，“配送模板id”=>1680751676，“主图像”=>{“url\u 75x75”=>”https://img1.etsystatic.com/021/0/8545731/il_75x75.576544537_n2zo.jpg“}，@token=”token“，@secret=”secret“>，
#182663346，“标题”=>“美食爆米花和调味品套件”，“数量”=>15，“价格”=>26.95”，“结尾”=>1405363087，“配送模板id”=>nil，“主图像”=>{“url\U 75x75”=>”https://img0.etsystatic.com/026/0/8545731/il_75x75.576428850_r1mv.jpg“}，@token=”token“，@secret”>，
#189414412，“标题”=>“水手手提袋”，“数量”=>45，“价格”=>“50.00”，“结束”=>1410586221，“装运模板id”=>1024284528，“主图像”=>{“url\u 75x75”=>”https://img0.etsystatic.com/039/0/8545731/il_75x75.576443100_slse.jpg“}，@token=“token”，@secret=“secret”>]

我尝试过的方法似乎都不管用。将其视为数组对某些事情有效，例如：output.length正确地返回4。但是output[0]返回时没有任何其他数据。我真正需要的是@result={}.Ideas中包含的内容。谢谢！

您写道：

它看起来像一组散列，也许

output=[#<Etsy::Listing:0x5551ba8 @result={"listing_id"=>182661496, "title"=>"Edible Butterflies in Coral", "quantity"=>1, "price"=>"12.50", "ending_tsz"=>1405362199, "shipping_template_id"=>nil, "MainImage"=>{"url_75x75"=>"https://img1.etsystatic.com/036/0/8545731/il_75x75.576542775_ibud.jpg"}}, @token="token", @secret="secret">, 
#<Etsy::Listing:0x5551bc0 @result={"listing_id"=>182671909, "title"=>"Marshmallow Sampler Pack", "quantity"=>3, "price"=>"9.50", "ending_tsz"=>1405362468, "shipping_template_id"=>1680751676, "MainImage"=>{"url_75x75"=>"https://img1.etsystatic.com/021/0/8545731/il_75x75.576544537_n2zo.jpg"}}, @token="token", @secret="secret">, 
#<Etsy::Listing:0x5551bf0 @result={"listing_id"=>182663346, "title"=>"Gourmet popcorn and seasoning kit", "quantity"=>15, "price"=>"26.95", "ending_tsz"=>1405363087, "shipping_template_id"=>nil, "MainImage"=>{"url_75x75"=>"https://img0.etsystatic.com/026/0/8545731/il_75x75.576428850_r1mv.jpg"}}, @token="token", @secret">, 
#<Etsy::Listing:0x5551c08 @result={"listing_id"=>189414412, "title"=>"Sailor Tote Bag", "quantity"=>45, "price"=>"50.00", "ending_tsz"=>1410586221, "shipping_template_id"=>1024284528, "MainImage"=>{"url_75x75"=>"https://img0.etsystatic.com/039/0/8545731/il_75x75.576443100_slse.jpg"}}, @token="token", @secret="secret">]

它是一个对象数组。每个对象都是一个

Etsy:：Listing

实例。您应该能够在Rails控制台上执行此操作：

> listing = output.first
#=> <Etsy::Listing:0x5483418>
> listing.result
#=> {"listing_id"=>182661496, …}

---

看来你没读到：

---

您是否尝试过

output.first.result

？@wickedpixel确保您接受一个答案（无论哪个答案对您有帮助），以便它将来能够帮助其他人。快速跟进-如何从MainImage获取键/值对？我尝试过

listing.MainImage.each_对{k，v | put“{k.inspect}:{v}”

但这只会导致

nomethoder错误的未定义方法“main image”

您是否尝试了

列出。image

？请看。@wickedpixel如果某个答案适合您，请对其进行投票。您可以并且应该对任何您认为有用的答案进行投票。谢谢！

listings = output.map do |listing| 
  { 
    "title"    => listing.title, 
    "quantity" => listing.quantity, 
    "price"    => listing.price
  }
end