Rails 3: setting the timezone to the current users timezone

Question

I put this in Application Controller:

before_filter :set_timezone 

def set_timezone  
Time.zone = current_user.time_zone 
end  

But I alwa

Answer 1

Further to Jesse's answer, I should add that you can generally avoid adding a new column in db and just create a custom method in user model and make use of cookie to get the user's timezone:

in client-side (js):

function set_time_zone_offset() {
    var current_time = new Date();
    $.cookie('time_zone', current_time.getTimezoneOffset());
}

in Application Controller:

before_filter :set_timezone 

def set_timezone  
 min = request.cookies["time_zone"].to_i
 Time.zone = ActiveSupport::TimeZone[-min.minutes]
end