function paper_get_unread_papers($user_id) { global $tablePreStr; global $dbServs; $dbo = new dbex(); $t_comments = $tablePreStr . "comments"; $t_papers = $tablePreStr . "papers"; dbtarget('r', $dbServs); $data = array(); if (null == $user_id) { return $data; } $datasql = "select {$t_papers}.* from {$t_papers} where {$t_papers}.paper_id in \n(select distinct {$t_comments}.paper_id as unread_count from {$t_comments} \n\twhere (({$t_comments}.paper_id in (select {$t_papers}.paper_id from {$t_papers} where {$t_papers}.user_id = {$user_id}) and {$t_comments}.comment_type=1) \n\t\t\t or ({$t_comments}.commenter_id=1 and {$t_comments}.comment_type=2)) \n\t\tand {$t_comments}.comment_status = 0)"; $data = $dbo->getAll($datasql); return $data; }