```ruby
# Filters added to this controller apply to all controllers in the application.
# Likewise, all the methods added will be available for all controllers.
class ApplicationController < ActionController::Base
  
  include AuthenticatedSystem
  
  filter_parameter_logging "password"
  helper :all # include all helpers, all the time

  # See ActionController::RequestForgeryProtection for details
  # Uncomment the :secret if you're not using the cookie session store
  protect_from_forgery :secret => '9a126b23de542e647165efc443bbc7eb'
  
  # See ActionController::Base for details 
  # Uncomment this to filter the contents of submitted sensitive data parameters
  # from your application log (in this case, all fields with names like "password"). 
  # filter_parameter_logging :password
  
  before_filter :set_locale
  before_filter :set_timezone

  def set_locale   
    session[:locale] = params[:locale] if params[:locale]
    I18n.locale = session[:locale] || I18n.default_locale
  end

  def set_timezone
    Time.zone = current_user.time_zone if current_user
  end
  
end```

Fix deprecation (The :digest and :secret options to protect_from_forgery are deprecated and have no effect.)
user
```ruby
# Filters added to this controller apply to all controllers in the application.
# Likewise, all the methods added will be available for all controllers.
class ApplicationController < ActionController::Base
  
  include AuthenticatedSystem
  
  filter_parameter_logging "password"
  helper :all # include all helpers, all the time

  # See ActionController::RequestForgeryProtection for details
  # Uncomment the :secret if you're not using the cookie session store
  protect_from_forgery
  
  # See ActionController::Base for details 
  # Uncomment this to filter the contents of submitted sensitive data parameters
  # from your application log (in this case, all fields with names like "password"). 
  # filter_parameter_logging :password
  
  before_filter :set_locale
  before_filter :set_timezone

  def set_locale   
    session[:locale] = params[:locale] if params[:locale]
    I18n.locale = session[:locale] || I18n.default_locale
  end

  def set_timezone
    Time.zone = current_user.time_zone if current_user
  end
  
end```
assistant