ForgeActivity.find_by_sql("SELECT p.project_id, p.created_at FROM
(SELECT fa.project_id, MAX(fa.created_at) AS created_at FROM forge_activities fa WHERE fa.project_id IN (" + @user.projects.visible.select('projects.id').map{|p| p.id}.join(',') + ")
ForgeActivity.find_by_sql("SELECT p.project_id, p.updated_at FROM
(SELECT fa.project_id, MAX(fa.updated_at) AS updated_at FROM forge_activities fa WHERE fa.project_id IN (" + @user.projects.visible.select('projects.id').map{|p| p.id}.join(',') + ")
GROUP BY fa.project_id) AS p
ORDER BY p.created_at DESC limit 5").map {|p| p.project_id}.join(",") + ")"
ORDER BY p.updated_at DESC limit 5").map {|p| p.project_id}.join(",") + ")"
projects = Project.where("projects.id in #{project_order_ids}")