migrate.rb

#!env ruby
class DummyTable
  def initialize(tablename)
    @@tablename=tablename
  end
  def self.method_missing(m, *args); end

  def self.datetime(name,options={})
    puts "execute \"UPDATE #{@@tablename} SET #{name}=CONVERT_TZ(#{name},'SYSTEM','+00:00');\"" 
  end
end

def create_table(tablename,options,*block)
  dummy_table=DummyTable.new(tablename)
  yield DummyTable
end

def add_index(name,fields,options={}); end

class ActiveRecord;end

class ActiveRecord::Schema
  def self.define(options={}, *block)
    yield
  end
end

require 'db/schema.rb'