Replace couchbase counters with drb version

lib/qwaiter/couchbase.rb

@@ -5,13 +5,20 @@ module Qwaiter
     end
 
     def self.load_design_docs!
+      return unless connection.present?
       Dir.glob(Rails.root.join('config/couchbase/design_docs', "*.json")).each do |design_doc|
         connection.save_design_doc File.open(design_doc)
       end
     end
 
     def self.design_doc(name)
+      return unless connection.present?
       connection.design_docs[name]
     end
+
+    def self.flush_counters!
+      return unless connection.present?
+      design_doc('supplier').counters(reduce: false).each{|counter| Qwaiter::Counter.set counter.key, 0}
+    end
   end
 end

lib/qwaiter/counter.rb

@@ -22,8 +22,3 @@ module Qwaiter
     end
   end
 end
-
-# use the connection from couchbase-structures/documents
-# will be overwritten in the specs since flushing the real
-# thing is difficult
-Qwaiter::Counter.connection = $cb unless Rails.env.test?

lib/qwaiter/drb_counter.rb

@@ -0,0 +1,8 @@
+module Qwaiter
+  module DrbCounter
+    def self.object
+      require 'drb'
+      DRbObject.new_with_uri('druby://localhost:9022')
+    end
+  end
+end