Set @project so macros will work on the welcome and project list. #5781

Contributed by Holger Just

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3824 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/projects_helper.rb

@@ -56,7 +56,10 @@ module ProjectsHelper
     s = ''
     if projects.any?
       ancestors = []
+      original_project = @project
       projects.each do |project|
+        # set the project environment to please macros.
+        @project = project
         if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
           s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
         else
@@ -75,6 +78,7 @@ module ProjectsHelper
         ancestors << project
       end
       s << ("</li></ul>\n" * ancestors.size)
+      @project = original_project
     end
     s
   end