Use PG JSON datatype with Lotus::Model (hacky hacky)

gistfile1.rb

require 'lotus/model'
require 'json'

module Lotus::Model::Mapping::Coercions
  def self.JSON(arg)
    return nil if arg.nil?
    case arg
    when String
      JSON.parse(arg)
    else
      Sequel.pg_json(arg)
    end
  end
end

Lotus::Model.configure do
  ...
end