created template selecting

web/app/models/server.rb

@@ -1,8 +1,13 @@
 class Server < ActiveRecord::Base
   belongs_to :operating_system
   before_create :generate_hash
+  has_many :configuration_files
 
   def generate_hash
     self.namehash = SecureRandom.hex
   end
+
+  def to_s
+    "#{name} - #{namehash}"
+  end
 end