X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/2e44f9ccf3ac8c54c407d74422247b5a721b269c..c7bc13668b78afde72e9b8f6644b001799e84eb9:/app/models/user_preference.rb

diff --git a/app/models/user_preference.rb b/app/models/user_preference.rb
index 2a73f2233..7c65a5899 100644
--- a/app/models/user_preference.rb
+++ b/app/models/user_preference.rb
@@ -1,13 +1,17 @@
 class UserPreference < ActiveRecord::Base
+  self.primary_keys = "user_id", "k"
+
   belongs_to :user
 
+  validates :user, :presence => true, :associated => true
+  validates :k, :v, :length => 1..255
+
   # Turn this Node in to an XML Node without the <osm> wrapper.
   def to_xml_node
-    el1 = XML::Node.new 'preference'
-    el1['k'] = self.k
-    el1['v'] = self.v
-    
-    return el1
-  end
+    el1 = XML::Node.new "preference"
+    el1["k"] = k
+    el1["v"] = v
 
+    el1
+  end
 end