How to log user_name in Rails?

Question

I use Devise in Rails 3. I want to see name of current_user in production.log.

I would like to configure rails like this:

config.log_tags = [:user_na         


        

Answer 1

For anyone using Redis::Store @fjuillen's answer looks like this:

redis = Redis::Store.new
redis.select 3 # only if you use a different database
result = redis.get req.cookie_jar["_session_id"]

tested on rails 4.