/**
* @param Node $node
* @param $relation
* @return array
*/
private function getRelationsFrom($node, $relation)
{
// Cache sequential calls for the same element
static $loaded = null, $existing;
if ($loaded !== $node) {
$command = new Extension\GetNodeRelationshipsLight($this->client, $node);
$existing = $command->execute();
$loaded = $node;
}
return array_filter($existing, function ($entry) use($relation) {
return $entry['type'] == $relation;
});
}
function addRelation($relation, $a, $b)
{
static $loaded = null, $existing;
$a = $this->nodes[$this->getHash($a)];
$b = $this->nodes[$this->getHash($b)];
if ($loaded !== $a) {
$command = new Extension\GetNodeRelationshipsLight($this->client, $a);
$existing = $command->execute();
$loaded = $a;
}
foreach ($existing as $r) {
if ($r['type'] == $relation && basename($r['end']) == $b->getId()) {
return;
}
}
$a->relateTo($b, $relation)->setProperty('creationDate', $this->getCurrentDate())->save();
list($relation, $a, $b) = func_get_args();
$this->triggerEvent(self::RELATION_CREATE, $relation, $a, $b);
}
