feature flagging concept

gistfile1.rb

# ---
# Doorman is yet another feature flipper. You can use Doorman to limit access
# of features on a global or per object scale to specific users or accounts.
#
# Doorman uses Rolify to store state and keeps the global list of features
# in Redis (or maybe in PG - depending on what's easier).
#
# :section Example Usage
#
# Setting up instructions
#   feature = Doorman::Feature.for(name: :account_management)
#   feature.instructions.enable(version: :google_plus, user: user)
#   feature.save!
#
# Used in a controller or model
#   account_service = { google_plus: GooglePlusAccount, rooster: RoosterAccount, default: GooglePlusAccount }.freeze
#   feature = Doorman::Feature.for(name: :account_management)
#   service = account_service[feature.version(user)]
#   service.call()
#
# Used in a view with a feature in the view context
#
#   #In Controller
#   @feature = Feature.for(name: :account_management)
#
#   #In View
#   - feature.allow?(:google_plus)
#     %h1 Your Google+ Account
#       ...
#
# Used in a view via the Feature.allow? helper
#   - Doorman::Feature.allow?(:account_management, :google_plus)
#     %h1 Your Google+ Account
#       ...
# ---

Feel like we need a more full featured feature flagging system. Don't know that we need all these variations but wanted to put them here so we could figure out what would be good now and what would be a hassle.

Basically I'm thinking I could back this on Rolify because nothing in glass-tiger back end should be in heavy usage.

Thoughts?