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我有一个 Savon SOAP 会话，在其中我得到一个转换为数组的响应。然后将此响应的一部分存储在包含这样的哈希的变量包中；

{
  :cancellation_policies=>nil,
  :contract_id=>"834",
  :hotel_id=>"41298",
  :package_id=>"6b0938e-bf45ed4facda",
  :package_price=>{
    :currency=>"NOK",
    :final_price=>"1400.05",
    :final_price_in_supplier_currency=>"169",
    :original_price=>"1400.05", 
    :original_price_in_supplier_currency=>"169",
    :supplier_currency=>"GBP"
  },
  :rooms=>{
    :room=>{
      :adults_count=>"2",
      :availability=>"Available",
      :description=>{
        :"@xmlns:a"=>"http://schemas.microsoft.com/2003/10/Serialization/Arrays"
      },
      :id=>"6de98b4b-256e-47de-bbd3-700602a16e8e",
      :kids_ages=>{
        :"@xmlns:a"=>"http://schemas.microsoft.com/2003/10/Serialization/Arrays"
      },
      :price=>{
        :currency=>"NOK",
        :final_price=>"1419.05",
        :final_price_in_supplier_currency=>"165",
        :original_price=>"1419.05",
        :original_price_in_supplier_currency=>"165",
        :supplier_currency=>"GBP"
      },
      :room_basis=>"Bed and Breakfast BB",
      :room_basis_original=>"Room and Breakfast (American Buffet Breakfast)", 
      :room_class=>"Standard",
      :room_class_original=>"Double Room",
      :room_type=>"Double",
      :room_type_original=>"Double Room"
    }
  },
  :supplier_id=>"21",
  :supplier_name=>"HTP"
}

当我尝试访问 package[:cancellation_policies] 时发生了奇怪的事情，我收到一条错误消息；无法将符号转换为整数。

我如何访问例如 :cancellation_policies ？

package.inspect 给出；

{ :cancellation_policies=>nil, :contract_id=>"834", :hotel_id=>"41298", :package_id=>"4e80e642-13eb-48d6-9f1e-8b35f1c406ca", :package_price=>{:currency=>"NOK", :final_price=>"1677.06", :final_price_in_supplier_currency=>"195", :original_price=>"1677.06", :original_price_in_supplier_currency=>"195", :supplier_currency=>"GBP"}, :rooms=>{:room=>{:adults_count=>"2", :availability=>"Available", :description=>{:"@xmlns:a"=>"http://schemas.microsoft.com/2003/10/Serialization/Arrays"}, :id=>"dce10420-bbc5-471e-b388-03d6bb132e27", :kids_ages=>{:"@xmlns:a"=>"http://schemas.microsoft.com/2003/10/Serialization/Arrays"}, :price=>{:currency=>"NOK", :final_price=>"1677.06", :final_price_in_supplier_currency=>"195", :original_price=>"1677.06", :original_price_in_supplier_currency=>"195", :supplier_currency=>"GBP"}, :room_basis=>"Bed and Breakfast BB", :room_basis_original=>"Breakfast (Full Breakfast)", :room_class=>"Standard", :room_class_original=>"Standard Double - Double", :room_type=>"Double", :room_type_original=>"Standard Double - Double"}}, :supplier_id=>"21", :supplier_name=>"HTP"}

（据我所知，输出与上述相同？）

所以我尝试了；

<% package.each do |key, value| %>
<%= key %> is <%= value %>
<% end %>

很好地打印contract_id is 834 hotel_id is 41298

...等等，如果这能澄清什么？

如此临时的事情为我解决了它；

package_as_hash = Hash.new 
package.each do |key, value|
package_as_hash[key]  = value
end

高度怀疑它是最有效的方法，但至少它有效......

4

1 回答 1

1

由于某种原因，您的包不是哈希。

如果您在控制台中复制并粘贴以下内容：

package = {
            :level_1=>"1",
            :rooms=>{
              :level_2=>"2",
              :room=>{
                :level_3=>"3",
              }
            },
          }

您将看到您可以访问任何级别的哈希：

package[:level_1]
=> "1" 
package[:rooms][:level_2]
=> "2" 
package[:rooms][:room][:level_3]
=> "3"

但是，如果您不小心更改{为[：

package = [
            :level_1=>"1",
            :rooms=>{
              :level_2=>"2",
              :room=>{
                :level_3=>"3",
              }
            },
          ]

您将获得 Array，这似乎是您面临的错误：

package[:level_1]
TypeError: can't convert Symbol into Integer

为了解决您的问题，如果您期望一个哈希，您必须找出为什么您有一个数组：

  • 你可以避免包变成一个数组；
  • 或者您可以将数组转换为哈希。但是，要做到这一点，您必须了解数组的结构。
于 2013-02-18T13:41:28.290 回答