custom rails json dump load class

gistfile1.txt

require 'oj'

# Macro in model:
#   serialize :payload, ActiveSupport::OJSON
#
# payload is a text data type in postgres
#
module ActiveSupport
  module OJSON
    class << self
      PARSE_ERROR_CLASS = defined?(::Oj::ParseError) ? ::Oj::ParseError : SyntaxError

      # Parses a JSON string (JavaScript Object Notation) into a hash.
      # See www.json.org for more info.
      #
      #   ActiveSupport::OJSON.decode("{\"team\":\"rails\",\"players\":\"36\"}")
      #   => {"team" => "rails", "players" => "36"}
      def decode(string, options = {})
        options.reverse_merge!(mode: :strict, symbolize_keys: false)
        options[:symbol_keys] = options.delete(:symbolize_keys)
        ::Oj.load(string, options)
      end
      alias_method :load, :decode

      # Encode an object.
      #   ActiveSupport::OJSON.encode(test: 'value')
      def encode(object, options = {})
        options.reverse_merge!(mode: :compat, time_format: :ruby)
        options.merge!(indent: 2) if options[:pretty]
        ::Oj.dump(object, options)
      end
      alias_method :dump, :encode

      # Returns the class of the error that will be raised when there is an
      # error in decoding JSON. Using this method means you won't directly
      # depend on the ActiveSupport's JSON implementation, in case it changes
      # in the future.
      #
      #   begin
      #     obj = ActiveSupport::OJSON.decode(some_string)
      #   rescue ActiveSupport::JSON.parse_error
      #     Rails.logger.warn("Attempted to decode invalid JSON: #{some_string}")
      #   end
      def parse_error
        PARSE_ERROR_CLASS
      end
    end
  end
end