X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/a5e5cbc73999d004998e1e90b1b19796a94b077d..c07279e4585ad8cdc859eea61a9193aa849e7e32:/app/models/message.rb

diff --git a/app/models/message.rb b/app/models/message.rb
index a85de2231..98346d7c7 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
@@ -6,4 +8,15 @@ class Message < ActiveRecord::Base
   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