Question

我有一个哈希如下：

random_data = {
0=>{"ABC"=>"201604", "CDE"=>"0002874", "TPP"=>"000004971821467", "APD"=>"00182", "PRODUCTID"=>"ACH", "OPP"=>"00000000000176564", "CTC"=>"00000000000286920"}, 
1=>{"ABC"=>"301604", "CDE"=>"0001074", "TPP"=>"000004971821467", "APD"=>"00182", "PRODUCTID"=>"ACH", "OPP"=>"00000000000119964", "CTC"=>"00000000000211920"}
}

和2个数组如下：

arr1 = [CHAR,NUMBER,NUMBER,NUMBER,CHAR,NUMBER,CHAR]
arr2 = [6,(7,0),(15,0),(5,0),3,(15,2),17]

arr1和arr2的元素用哈希值映射，条件如下：

如果数组arr1的元素是char，则不对哈希值执行任何操作。
如果数组arr1的元素为NUMBER，则散列random_data中的对应元素应转换为整数，即应删除前导零。

例如，arr1 [1]是'Number'，因此对于hash的每个第二个元素，应该删除前导零。

即。 “CDE”=＆gt;“0002874”应成为“CDE”=＆gt;“2874”

如果arr1为NUMBER且arr2元素的第二个数字不为0，则应在哈希中添加小数。举个例子： arr1 [5] =数字 arr2 [5] =（15,2）

然后哈希OPP中的第5个元素应该变成这样的“OPP”=＆gt;“1199.64”，即为2个位置添加小数（15,2）

预计产出如下：

random_data = {
0=>{"ABC"=>"201604", "CDE"=>"2874", "TPP"=>"4971821467", "APD"=>"182", "PRODUCTID"=>"ACH", "OPP"=>"1765.64", "CTC"=>"00000000000286920"}, 
1=>{"ABC"=>"301604", "CDE"=>"1074", "TPP"=>"4971821467", "APD"=>"182", "PRODUCTID"=>"ACH", "OPP"=>"1199.64", "CTC"=>"00000000000211920"}
}

Answer 1

arr1 = %w| CHAR NUMBER NUMBER NUMBER CHAR NUMBER CHAR |
  #=> ["CHAR", "NUMBER", "NUMBER", "NUMBER", "CHAR", "NUMBER", "CHAR"]
arr2 = [6, [7,0], [15,0], [5,0], 3, [15,2], 17]

enum = arr1.zip(arr2).map { |type, obj| type=="CHAR" ? type : obj.last }.to_enum
  #=> #<Enumerator: ["CHAR", 0, 0, 0, "CHAR", 2, "CHAR"]:each> 

random_data.each do |k,h|
  h.update(h) do |*,v|
    obj = enum.next 
    case obj 
    when "CHAR"
      v
    else
      x = v.to_i
      x = x.to_f/10**obj if obj > 0
      x.to_s
    end  
  end
  enum.rewind
end
  #=> {0=>{"ABC"=>"201604", "CDE"=>"2874", "TPP"=>"4971821467", "APD"=>"182",
  #        "PRODUCTID"=>"ACH", "OPP"=>"0.17", "CTC"=>"00000000000286920"},
  #    1=>{"ABC"=>"301604", "CDE"=>"1074", "TPP"=>"4971821467", "APD"=>"182",
  #        "PRODUCTID"=>"ACH", "OPP"=>"1199.64", "CTC"=>"00000000000211920"}}

Answer 2

arr1 = %w|CHAR NUMBER NUMBER NUMBER CHAR NUMBER CHAR|
arr2 = [6, [7,0], [15,0], [5,0], 3, [15,2], 17]

types = arr1.zip(arr2)
random_data.map do |_, hash|
  hash.map.with_index do |(k, v), idx|
    type, digits = types[idx]
    [
      k, 
      type == 'NUMBER' ? v.to_i.to_s.tap do |s|
        s[/(?=.{#{[*digits][1]}}\z)/] = '.' unless [*digits][1].zero?
      end : v
    ]
  end
end

根据数组值和条件

2 个答案: