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/035_create_changes.rb

@@ -0,0 +1,16 @@
+class CreateChanges < ActiveRecord::Migration
+  def self.up
+    create_table :changes do |t|
+      t.column :changeset_id, :integer, :null => false
+      t.column :action, :string,  :limit => 1, :default => "", :null => false
+      t.column :path, :string, :default => "", :null => false
+      t.column :from_path, :string
+      t.column :from_revision, :integer
+    end
+    add_index :changes, [:changeset_id], :name => :changesets_changeset_id
+  end
+
+  def self.down
+    drop_table :changes
+  end
+end