Adds a branch for unlimited project hierarchy.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/work@2148 e93f8b46-1217-0410-a6f0-8f06a7374b81

nested_projects/db/migrate/034_create_changesets.rb

@@ -0,0 +1,16 @@
+class CreateChangesets < ActiveRecord::Migration
+  def self.up
+    create_table :changesets do |t|
+      t.column :repository_id, :integer, :null => false
+      t.column :revision, :integer, :null => false
+      t.column :committer, :string, :limit => 30
+      t.column :committed_on, :datetime, :null => false
+      t.column :comments, :text
+    end
+    add_index :changesets, [:repository_id, :revision], :unique => true, :name => :changesets_repos_rev
+  end
+
+  def self.down
+    drop_table :changesets
+  end
+end