timezone support breaks _before_type_cast method

rubyonrails-talk
1

Some code in my current project validates date time format using _before_type_cast method. But after adding "config.time_zone = "UTC" in environment.rb, we can't get string raw values of some date time columns using _before_type_cast. for example,

p = Person.new(:name => 'sean', :birthday => '1989-01-23') p.birthday_before_type_cast Mon, 23 Jan 1989 00:00:00 UTC 00:00 p.birthday_before_type_cast.class

=> ActiveSupport::TimeWithZone

now birthday_before_type_cast returns value of type: "ActiveSupport::TimeWithZone".

Is there a method to get the raw value of date time column in this case? By the way, is this a bug of rails 2.1.0 or the right behavior?

Thanks.