/**
* {@inheritdoc}
*/
public function uniquify(&$alias, $source, $langcode)
{
$config = $this->configFactory->get('pathauto.settings');
if (!$this->isReserved($alias, $source, $langcode)) {
return;
}
// If the alias already exists, generate a new, hopefully unique, variant.
$maxlength = min($config->get('max_length'), $this->aliasStorageHelper->getAliasSchemaMaxlength());
$separator = $config->get('separator');
$original_alias = $alias;
$i = 0;
do {
// Append an incrementing numeric suffix until we find a unique alias.
$unique_suffix = $separator . $i;
$alias = Unicode::truncate($original_alias, $maxlength - Unicode::strlen($unique_suffix, TRUE)) . $unique_suffix;
$i++;
} while ($this->isReserved($alias, $source, $langcode));
}