/**
  * update_access_levels
  * Update access levels of repos
  *
  * @param type $repo_id
  * @param type $permissions
  *
  * @return boolean
  */
 function update_access_levels($repo_id = 0, $permissions = "")
 {
     $access_table_name = TABLE_PREFIX . 'rt_gitolite_access_master';
     if ($repo_id == 0 || $repo_id == "" || $permissions == "") {
         return false;
     }
     /* echo "update  ".$access_table_name." set permissions = '$permissions' where repo_id = ".DB::escape($repo_id);
     	  die(); */
     $update_access = DB::execute("update  " . $access_table_name . " set permissions = " . DB::escape($permissions) . " where repo_id = " . DB::escape($repo_id));
     ProjectGitolite::update_repo_conf_column(DB::escape($repo_id), $permissions);
     return true;
 }