# Using TzTime with timezone_fu.
# Untested, theoretical code only.

class ApplicationController < ActionController::Base
  around_filter :set_timezone

  private

    def set_timezone
      TzTime.zone = current_user.time_zone
      yield
      TzTime.reset!
    end
end

class Event < ActiveRecord::Base
  has_timezone :fields => [ :start_datetime, :end_datetime]

  # timezone_fu expects a timezone method to return the TzInfo timezone string
  def timezone
    TzTime.zone.name
  end
end

# Or, you could do it like this too, if you didn't care about TzTime
# or the logged in user, but instead wanted to use a relationship
class Event < ActiveRecord::Base
  has_timezone :fields => [ :start_datetime, :end_datetime]

  belongs_to :user
  delegate :timezone, :to => :user
end