X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/09c5740b5bb94c75a5c8c83cdbb80ae7b5ccbdf4..ef7f3d800cbdd49b692df10d312e5fd880e2e938:/app/models/user_role.rb

diff --git a/app/models/user_role.rb b/app/models/user_role.rb
index efa540fec..c4d703530 100644
--- a/app/models/user_role.rb
+++ b/app/models/user_role.rb
@@ -1,8 +1,8 @@
 class UserRole < ActiveRecord::Base
+  belongs_to :user
 
-  ALL_ROLES = ['administrator', 'moderator']
+  ALL_ROLES = %w(administrator moderator)
 
   validates_inclusion_of :role, :in => ALL_ROLES
-  belongs_to :user
-
+  validates_uniqueness_of :role, :scope => :user_id
 end