Changing datetime formatting while deserilizing in rails 4

Question

I'm using rails 4. I need to have a global datetime format to be set as "%Y-%m-%d %H:%M:%S %z" i.e. 2015-07-29 02:34:38 +0530. I tried to override as_json method which works but when I'm using it with delayed_job, It's serializing object which converts datetime field into 2015-07-29 02:34:38 UTC.

class ActiveSupport::TimeWithZone
  def as_json(options = {})
    strftime('%Y-%m-%d %H:%M:%S %z')
  end
end

Will it work if serializable_hash method overriden globally? If yes, how can I?

Answer 1

I have solved this problem by overriding TimeZoneCOnverter.

module ActiveRecord
  module AttributeMethods
    module TimeZoneConversion
      class TimeZoneConverter
        def convert_time_to_time_zone(value)
          if value.is_a?(Array)
            value.map { |v| convert_time_to_time_zone(v) }
          elsif value.acts_like?(:time)
            # changed from value.in_time_zone to
            value.to_time
          else
            value
          end
        end
      end
    end
  end
end

delayed_job serializes the object's attributes by saving it's type and value for time zone object type is ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter whose deserialize method calls convert_time_to_time_zone(value), by overriding it I got format that I wanted.