How do I tell DataMapper to use “timestamp with time zone” for DateTime properties?

问题

By default, DataMapper creates DateTime properties of type timestamp without time zone in PostgreSQL. I'd like to change that default for my project to timestamp with time zone. How can this be done?

回答1:

Just set ENV['TZ'] = 'your timezone'

回答2:

just in case some jruby users pass by:

you need to set ENV['TZ'] = 'your timezone' and

org.joda.time.DateTimeZone.setDefault(org.joda.time.DateTimeZone.forID('your timezone'))

'UTC' works fine for me. for other timezone you might need to dig into joda-time.

来源：https://stackoverflow.com/questions/5876563/how-do-i-tell-datamapper-to-use-timestamp-with-time-zone-for-datetime-properti