protected function detectRoutes(ReferenceLink $rootLink, array $referencePaths) {
$routeId = 0;
foreach ($referencePaths as $referencePath => $required) {
// preparing possible routes
$referenceRoutes = $rootLink->prepareRoutes($referencePath);
// selecting 'the best' route
$selectedRoute = NULL;
if (isset($referenceRoutes)) {
foreach ($referenceRoutes as $directReferenceFlag => $routes) {
foreach ($routes as $route) {
if (!isset($selectedRoute) || ($selectedRoute->weight > $route->weight)) {
$selectedRoute = $route;
}
}
}
}
if (isset($selectedRoute)) {
$rootLink->assignRouteId($selectedRoute, $routeId);
$routeId++;
}
elseif ($required) {
$metamodel = data_controller_get_metamodel();
LogHelper::log_error(t('Could not execute reference path: @referencePath', array('@referencePath' => $referencePath)));
list($referencedDatasetName) = ReferencePathHelper::splitReference($referencePath);
$referencedDataset = $metamodel->getDataset($referencedDatasetName);
throw new IllegalArgumentException(t(
'%datasetNameA and %datasetNameB datasets are not connected',
array('%datasetNameA' => $rootLink->dataset->publicName, '%datasetNameB' => $referencedDataset->publicName)));
}
}
}
