Shameful massage by bad-tempered man

Nasty fix for DB encryption key supply
Horrid fix for #636

app/models/concerns/encryption.rb

@@ -1,10 +1,12 @@
 require 'active_support/concern'
 
-module Encryption  
+module Encryption
   extend ActiveSupport::Concern
 
   def key
-    key_val = Rails.configuration.database_configuration[Rails.env]['encryption_key']
+    key_val = ENV.fetch('DB_ENCRYPT_KEY') ||
+              Rails.configuration.database_configuration[Rails.env]['encryption_key']
+
     # if in production. require key to be set.
     if Rails.env.production?
       raise 'Must set token key!!' unless key_val

lib/two_factor/model_mixin.rb

@@ -2,7 +2,16 @@ module TwoFactor
   module ActiveRecordMixin
     def two_factor(*strategies)
       strategies.each do |strategy|
-        self.include("TwoFactor::Models::#{strategy.to_s.camelize}".constantize)
+        begin
+          self.include("TwoFactor::Models::#{strategy.to_s.camelize}".constantize)
+        rescue NoMethodError
+          # Yes, this is an awful thing. Glad you noticed.
+          # Short version: This mixin causes Rails to attempt to reach the DB
+          # at initialization time, which is a bad thing if you're in the
+          # compile stage rather than run stage (when trying to build a
+          # droplet for Cloud Foundry) and you just want to precompile assets.
+          # Longer discussion: https://github.com/18F/myusa/issues/636
+        end
       end
     end
   end