private function processQueryParams(Schema $schema, $mainEntity)
{
// Get rid of any 'PHPSESSION' and cookie params.
RestUrlParams::extractValue($this->params, session_name());
// Create/restore the temporaryIdMap.
$storedTemporaryIds = NULL;
if (isset($_SESSION[$this->sessionId])) {
$storedTemporaryIds = TemporaryIdMap::deserializeTemporaryIds($schema, $_SESSION[$this->sessionId]);
}
$this->temporaryIdMap = new TemporaryIdMap($storedTemporaryIds);
// Validate that prefixed parameters refer to existing entities.
foreach ($this->params as $paramName => &$paramValue) {
if (RestUrlParams::isFetchParam($paramName)) {
continue;
}
$paramNameParts = explode(RestUrlParams::ENTITY_SEPARATOR, $paramName);
$entity = NULL;
$queryParam = NULL;
if (count($paramNameParts) == 1) {
if ($mainEntity == NULL) {
// error_log("Ignoring unknown query parameter: '$paramName=$paramValue'.");
unset($this->params[$paramName]);
continue;
}
$entity = $mainEntity;
$queryParam = $paramNameParts[0];
} else {
// Check if the specified entity exists.
$entity = $schema->getObjectEntity($paramNameParts[0], false);
if ($entity == NULL) {
throw new Exception("Unknown entity '{$paramNameParts['0']}' in query parameters.", RestResponse::CLIENT_ERROR);
}
$queryParam = $paramNameParts[1];
}
// If one or more ID's are specified...
if (strcasecmp($queryParam, RestUrlParams::ID) == 0) {
// ...then substitute any temporary ID with its persisted counterpart.
$persistedIds = array();
foreach (explode(RestUrlParams::ID_SEPARATOR, $paramValue) as $id) {
$persistedIds[] = $this->temporaryIdMap->getPersistedId($entity, $id);
}
$paramValue = implode(RestUrlParams::ID_SEPARATOR, $persistedIds);
}
}
}
