Question

我有一组嵌套的哈希：

[{"Group"=>"PR",
  "Test1"=>{"Code"=>"100", " Price"=>"24.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"6"}},
  "Test2"=>{"Code"=>"277", " Price"=>"12.00", "AdditionalInfo"=>{"Cross"=>"false"}}},
 {"Group"=>"CO",
  "Test1"=>{"Code"=>"45", " Price"=>"20.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"1"}},
  "Test2"=>{"Code"=>"27", " Price"=>"15.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"2"}},
  "Test6"=>{"Code"=>"131", " Price"=>"7.00", "AdditionalInfo"=>{"Cross"=>"false"}}},
 {"Group"=>"OA",
  "Test1"=>{"Code"=>"136", " Price"=>"14.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"7"}},
  "Test2"=>{"Code"=>"18", " Price"=>"19.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"7"}},
  "Test3"=>{"Code"=>"50", " Price"=>"8.00", "AdditionalInfo"=>{"Cross"=>"false"}},
  "Test4"=>{"Code"=>"23", " Price"=>"3.00", "AdditionalInfo"=>{"Cross"=>"true", "CrossId"=>"8"}}}
]

我需要在数组中展平嵌套哈希并将其放在同一个数组中，如下所示。

[
  { "Group"=>"PR", "Code"=>"100", " Price"=>"24.00", "Cross"=>"true", "CrossId"=>"6" },
  { "Group"=>"PR", "Code"=>"277", " Price"=>"12.00", "Cross"=>"false" },
  { "Group"=>"CO", "Code"=>"45", " Price"=>"20.00", "Cross"=>"true", "CrossId"=>"1" },
  { "Group"=>"CO", "Code"=>"27", " Price"=>"15.00", "Cross"=>"true", "CrossId"=>"2" },
  { "Group"=>"CO", "Code"=>"131", " Price"=>"7.00", "Cross"=>"false" },
  { "Group"=>"OA", "Code"=>"136", " Price"=>"14.00", "Cross"=>"true", "CrossId"=>"7" },
  { "Group"=>"OA", "Code"=>"18", " Price"=>"19.00", "Cross"=>"true", "CrossId"=>"7" },
  { "Group"=>"OA", "Code"=>"50", " Price"=>"8.00", "Cross"=>"false" },
  { "Group"=>"OA", "Code"=>"23", " Price"=>"3.00", "Cross"=>"true", "CrossId"=>"8" }
]

任何人都可以帮忙！

Answer 1

input.flat_map do |h|
  # split the input into group and tests in the first place
  h.partition { |k, v| k == "Group" }.reduce(&:product)
end.map do |(name, group), (_, data)|
  # due to product above each element is a 2×2 array
  # first item is the Group, the second is the TestN
  {name => group}.merge(data.merge(data.delete("AdditionalInfo")))
end

在数组中展平嵌套的哈希值 - Ruby

1 个答案: