Merged nested projects branch. Removes limit on subproject nesting (#594).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2304 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/query.rb

@@ -174,8 +174,8 @@ class Query < ActiveRecord::Base
       unless @project.versions.empty?
         @available_filters["fixed_version_id"] = { :type => :list_optional, :order => 7, :values => @project.versions.sort.collect{|s| [s.name, s.id.to_s] } }
       end
-      unless @project.active_children.empty?
-        @available_filters["subproject_id"] = { :type => :list_subprojects, :order => 13, :values => @project.active_children.collect{|s| [s.name, s.id.to_s] } }
+      unless @project.descendants.active.empty?
+        @available_filters["subproject_id"] = { :type => :list_subprojects, :order => 13, :values => @project.descendants.visible.collect{|s| [s.name, s.id.to_s] } }
       end
       add_custom_fields_filters(@project.all_issue_custom_fields)
     else
@@ -257,7 +257,7 @@ class Query < ActiveRecord::Base
   
   def project_statement
     project_clauses = []
-    if project && !@project.active_children.empty?
+    if project && !@project.descendants.active.empty?
       ids = [project.id]
       if has_filter?("subproject_id")
         case operator_for("subproject_id")
@@ -268,10 +268,10 @@ class Query < ActiveRecord::Base
           # main project only
         else
           # all subprojects
-          ids += project.child_ids
+          ids += project.descendants.collect(&:id)
         end
       elsif Setting.display_subprojects_issues?
-        ids += project.child_ids
+        ids += project.descendants.collect(&:id)
       end
       project_clauses << "#{Project.table_name}.id IN (%s)" % ids.join(',')
     elsif project