Set a default value for relation type.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@6177 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_relation.rb

@@ -1,5 +1,5 @@
-# redMine - project management software
-# Copyright (C) 2006-2007  Jean-Philippe Lang
+# Redmine - project management software
+# Copyright (C) 2006-2011  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -43,6 +43,14 @@ class IssueRelation < ActiveRecord::Base
   
   attr_protected :issue_from_id, :issue_to_id
   
+  def after_initialize
+    if new_record?
+      if relation_type.blank?
+        self.relation_type = IssueRelation::TYPE_RELATES
+      end
+    end
+  end
+  
   def validate
     if issue_from && issue_to
       errors.add :issue_to_id, :invalid if issue_from_id == issue_to_id