ruby-on-rails - 如何使用 Ruby on Rails 将 company.address.city 转换为对象

Question

我有一些参数，我正在尝试从 ie 构建一个深层嵌套的 json 对象:company.address.city company.address.state

这是我的参数:

{"business_type"=>"company", "company.address.city"=>"Gold Coast", "company.address.line1"=>"123 fake street", "company.address.state"=>"QLD", "company.name"=>"test"}

我期待这样的事情:

business_type: "company",
company{
  address{
     city: "Gold Coast",
     line1: "123 fake street",
     state: "QLD",
  },
name: "test"
}

Answer 1

以方法的形式以备不时之需

h = {"business_type"=>"company", "company.address.city"=>"Gold Coast", "company.address.line1"=>"123 fake street", "company.address.state"=>"QLD", "company.name"=>"test"}

def flatten_keys(hash)
  hash.each_with_object({}) do |(key,value), all|
    parts = key.split('.').map!(&:to_sym)
    new = parts[0...-1].inject(all) { |h, k| h[k] ||= {} }
    new[parts.last] = value
  end
end

flatten_keys(h)

打印出来

=> {:business_type=>"company", :company=>{:address=>{:city=>"Gold Coast", :line1=>"123 fake street", :state=>"QLD"}, :name=>"test"}}

希望对你有帮助