Silencing Deprecation warnings in Rails 3

Question

Can anyone tell me how to silence deprecation warinings in Rails 3?

I have a few situations where it is throwing false positives. Namely using - for loops in haml an

Answer 1

The accepted answer didn't work for me with Rails 3.2.12. Placing it in either the environments/production.rb or an initializer still outputted the warnings. I had to put it in my config/environment.rb file before the application was initialized:

# Load the rails application
require File.expand_path('../application', __FILE__)

::ActiveSupport::Deprecation.silenced = true if Rails.env.production?

# Initialize the rails application
Notices::Application.initialize!