dynamic assignment of dates

gistfile1.rb

Post.class_eval do
  columns.select { |c| c.type == :datetime }.map { |c| c.name }.each do |date_time_field|
    class_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{date_time_field}_date_picker
        read_attribute(:#{date_time_field}).to_s(:date_picker)
      end
      def #{date_time_field}_time_picker
        read_attribute(:#{date_time_field}).to_s(:time_picker)
      end
      def #{date_time_field}_date_picker=(date)
        # this needs to deal with timezone, and not rewrite the existing time fields
        write_attribute(:#{date_time_field}, DateTime.strptime(date, Time::DATE_FORMATS[:date_picker]))
      end
    RUBY
  end
end