public static function filterQueries($queries, $user)
{
$result = array();
foreach ($queries as $qid => $title) {
$qdao = new QueryDAO();
$segments = $qdao->getSegmentsByQueryId($qid);
$tristate = User::createPropertyMap(0);
foreach (array_values($segments) as $segment) {
$prop = $segment[0];
$value = $segment[1];
if ($tristate[$prop] != 1) {
$tristate[$prop] = User::indexOfUserValue($prop, $user) == $value ? 1 : -1;
}
}
$applies = true;
foreach (array_values($tristate) as $value) {
if ($value == -1) {
$applies = false;
break;
}
}
if ($applies) {
$result[$qid] = $title;
}
}
return $result;
}