public function traverse($relation, $depth = 1)
{
$traversal = new Traversal($this->client);
$traversal->addRelationship($relation, Relationship::DirectionOut)->setPruneEvaluator(Traversal::PruneNone)->setReturnFilter(Traversal::ReturnAll)->setMaxDepth($depth);
return $nodes = $traversal->getResults($startNode, Traversal::ReturnTypeNode);
}
}
// Find stores where the part was sold
} else {
if ($cmd == 'stores' && !empty($argv[2])) {
$partName = $argv[2];
// Use the Cypher query language
if (!empty($argv[3]) && $argv[3] == 'cypher') {
$queryTemplate = "START part=node:parts3('name:{$partName}') " . "MATCH (store)-[:SOLD]->()-[:CONTAINS]->(part) " . "RETURN store, count(*)";
$query = new Cypher\Query($client, $queryTemplate);
$result = $query->getResultSet();
echo "Found " . count($result) . " stores:\n";
foreach ($result as $row) {
echo "* " . $row['store']->getProperty('name') . "\n";
}
// Use javascript traversal
} else {
$part = $partsIndex->findOne('name', $partName);
if (!$part) {
die("{$partName} not found.\n");
}
$traversal = new Traversal($client);
$traversal->addRelationship('CONTAINS', Relationship::DirectionIn)->addRelationship('SOLD', Relationship::DirectionIn)->setMaxDepth(4)->setReturnFilter('javascript', '(position.length() > 0 && position.lastRelationship().getType() == "SOLD");');
$stores = $traversal->getResults($part, Traversal::ReturnTypeNode);
echo "Found " . count($stores) . " stores:\n";
foreach ($stores as $store) {
echo "* {$store->getProperty('name')}\n";
}
}
}
}
}
