diff db/migrate/20100313132032_add_issues_nested_sets_columns.rb @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/db/migrate/20100313132032_add_issues_nested_sets_columns.rb	Fri Jul 23 15:52:44 2010 +0100
@@ -0,0 +1,17 @@
+class AddIssuesNestedSetsColumns < ActiveRecord::Migration
+  def self.up
+    add_column :issues, :parent_id, :integer, :default => nil
+    add_column :issues, :root_id, :integer, :default => nil
+    add_column :issues, :lft, :integer, :default => nil
+    add_column :issues, :rgt, :integer, :default => nil
+    
+    Issue.update_all("parent_id = NULL, root_id = id, lft = 1, rgt = 2")
+  end
+
+  def self.down
+    remove_column :issues, :parent_id
+    remove_column :issues, :root_id
+    remove_column :issues, :lft
+    remove_column :issues, :rgt
+  end
+end