Module: Sqreen::Serializer

Defined in:
lib/sqreen/serializer.rb

Overview

Serialization functions: convert Hash -> simple ruby types

Class Method Summary collapse

Class Method Details

.serialize(obj, max_depth = 10) ⇒ Object

Serialize a deep hash/array to more simple types



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# File 'lib/sqreen/serializer.rb', line 10

def self.serialize(obj, max_depth = 10)
  if obj.is_a?(Array)
    new_obj = []
    i = -1
    to_do = obj.map { |v| [new_obj, i += 1, v, 0] }
  else
    new_obj = {}
    to_do = obj.map { |k, v| [new_obj, k, v, 0] }
  end
  until to_do.empty?
    where, key, value, deepness = to_do.pop
    safe_key = key.kind_of?(Integer) ? key : key.to_s
    if value.is_a?(Hash) && deepness < max_depth
      where[safe_key] = {}
      to_do += value.map { |k, v| [where[safe_key], k, v, deepness + 1] }
    elsif value.is_a?(Array) && deepness < max_depth
      where[safe_key] = []
      i = -1
      to_do += value.map { |v| [where[safe_key], i += 1, v, deepness + 1] }
    else
      case value
      when Symbol
        where[safe_key] = value.to_s
      when Rational
        where[safe_key] = value.to_f
      when Time
        where[safe_key] = value.iso8601
      when Numeric, String, TrueClass, FalseClass, NilClass
        where[safe_key] = value
      else
        where[safe_key] = "#{value.class.name}:#{value.inspect}"
      end
    end
  end

  new_obj
end