gistfile1.rb

# model code

 73   def dtstart_h=(args)
 74     begin
 75       self.dtstart = Time.zone.parse("#{args[:date]} #{args[:hour]}:#{args[:minute]}")
 76     rescue ArgumentError # rescues invalid date format passed to Ruby's date parser
 77       self.dtstart = Time.now
 78       errors.add('dtstart', "Invalid date format for the start time.  Please use 'YYYY-MM-DD HH:MM'.")
 79     end
 80   end


# debugger console

(rdb:8) p @event.errors
#<ActiveRecord::Errors:0x410ddb8 @base=#<Event id: nil, scheduled_type: "CourseSession", scheduled_id: 9287, summary: "", dtstart: "2009-04-30 10:09:15", dtend: nil, duration: 3600, rrule: {"frequency"=>""}, description: "", location: "", dtstamp: nil, account_id: nil>, @errors={"dtstart"=>["Invalid date format for the start time.  Please use 'YYYY-MM-DD HH:MM'."]}>
(rdb:8) p @event.valid?
true