Use acts_as_nested_set instead of acts_as_tree for project hierarchy.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/work@2149 e93f8b46-1217-0410-a6f0-8f06a7374b81

nested_projects/app/controllers/projects_controller.rb

@@ -46,8 +46,7 @@ class ProjectsController < ApplicationController
   # Lists visible projects
   def index
     projects = Project.find :all,
-                            :conditions => Project.visible_by(User.current),
-                            :include => :parent
+                            :conditions => Project.visible_by(User.current)
     respond_to do |format|
       format.html { 
         @project_tree = projects.group_by {|p| p.parent || p}

nested_projects/app/models/project.rb

@@ -43,7 +43,7 @@ class Project < ActiveRecord::Base
                           :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}",
                           :association_foreign_key => 'custom_field_id'
                           
-  acts_as_tree :order => "name", :counter_cache => true
+  acts_as_nested_set :dependent => :nullify
   acts_as_attachable :view_permission => :view_files,
                      :delete_permission => :manage_files
 

nested_projects/app/views/layouts/_project_selector.rhtml

@@ -1,4 +1,4 @@
-<% user_projects_by_root = User.current.projects.find(:all, :include => :parent).group_by(&:root) %>
+<% user_projects_by_root = User.current.projects.find(:all).group_by(&:root) %>
 <select onchange="if (this.value != '') { window.location = this.value; }">
 <option selected="selected"><%= l(:label_jump_to_a_project) %></option>
 <option disabled="disabled">---</option>