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/068_create_enabled_modules.rb

@@ -0,0 +1,18 @@
+class CreateEnabledModules < ActiveRecord::Migration
+  def self.up
+    create_table :enabled_modules do |t|
+      t.column :project_id, :integer
+      t.column :name, :string, :null => false
+    end
+    add_index :enabled_modules, [:project_id], :name => :enabled_modules_project_id
+    
+    # Enable all modules for existing projects
+    Project.find(:all).each do |project|
+      project.enabled_module_names = Redmine::AccessControl.available_project_modules
+    end
+  end
+
+  def self.down
+    drop_table :enabled_modules
+  end
+end