X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/a5e5cbc73999d004998e1e90b1b19796a94b077d..4b17b92da09820dd7bf61a640fd37458b82b06fe:/app/models/message.rb

diff --git a/app/models/message.rb b/app/models/message.rb
index a85de2231..053c7a4c0 100644
--- a/app/models/message.rb
+++ b/app/models/message.rb
@@ -1,3 +1,5 @@
+require 'validators'
+
 class Message < ActiveRecord::Base
   belongs_to :sender, :class_name => "User", :foreign_key => :from_user_id
   belongs_to :recipient, :class_name => "User", :foreign_key => :to_user_id
@@ -5,5 +7,15 @@ class Message < ActiveRecord::Base
   validates_presence_of :title, :body, :sent_on, :sender, :recipient
   validates_length_of :title, :within => 1..255
   validates_inclusion_of :message_read, :in => [ true, false ]
-  validates_associated :sender, :recipient
+  validates_as_utf8 :title
+
+  def digest
+    md5 = Digest::MD5.new
+    md5 << from_user_id.to_s
+    md5 << to_user_id.to_s
+    md5 << sent_on.xmlschema
+    md5 << title
+    md5 << body
+    md5.hexdigest
+  end
 end