RubyOnRails + 尝试将 JSON 转换为特定格式

Question

现有数据：

[
 {"name"=> "login[0][id]", "value"=> "10"},
 {"name"=> "login[0][name]", "value"=> "AAA"}, 
 {"name"=> "login[0][login]", "value"=> "login-1"}, 
 {"name"=> "login[0][password]", "value"=> "password-1"},
 {"name"=> "login[0][notes]", "value"=> "url-1"}, 
 {"name"=> "login[1][id]", "value"=> "15"}, 
 {"name"=> "login[1][name]", "value"=> "BBB"}, 
 {"name"=> "login[1][login]", "value"=> "admin"}, 
 {"name"=> "login[1][password]", "value"=> "admin-pwd"},
 {"name"=> "login[1][notes]", "value"=> "url-2"}
]

预计：

[
    "0" => {
        "id": "10",
        "name": "AAA", 
        "login", "login-1",
        "password": "password-1",
        "notes": "url-1"
    }, 
    "1" => {
        "id": "15",
        "name": "BBB", 
        "login", "ladmin",
        "password": "admin-pwd",
        "notes": "url-2"
    }
]

Answer 1

将对象转换为所需格式的一种方法是使用正则表达式提取登录号和相关属性，如下所示：

def convert(array)
  name_regex = /^login\[(?<number>\d+)\]\[(?<attribute>\S+)\]/
  result = {}

  array.each do |obj|
    match = obj["name"].match(name_regex)
    next if match.nil?

    result[match[:number]] ||= {}
    result[match[:number]][match[:attribute]] = obj["value"]
  end
  
  result
end

然后，给定示例中的初始数组，此方法应return以下内容：

array = [
  { "name" => "login[0][id]", "value" => "10" },
  { "name" => "login[0][name]", "value" => "AAA" }, 
  { "name" => "login[0][login]", "value" => "login-1" }, 
  { "name" => "login[0][password]", "value" => "password-1" },
  { "name" => "login[0][notes]", "value" => "url-1" }, 
  { "name" => "login[1][id]", "value" => "15" }, 
  { "name" => "login[1][name]", "value" => "BBB" }, 
  { "name" => "login[1][login]", "value" => "admin" }, 
  { "name" => "login[1][password]", "value" => "admin-pwd" },
  { "name" => "login[1][notes]", "value" => "url-2" }
]

convert(array)

#=> {"0"=>{"id"=>"10", "name"=>"AAA", "login"=>"login-1", "password"=>"password-1", "notes"=>"url-1"}, "1"=>{"id"=>"15", "name"=>"BBB", "login"=>"admin", "password"=>"admin-pwd", "notes"=>"url-2"}}

RubyOnRails + 尝试将 JSON 转换为特定格式

RubyOnRails + Trying to convert JSON into specific format

ruby

ruby-on-rails-5