LinkResolver.php

class StarterKitLinkResolver extends LinkResolver
{
    // [...]
    public function resolve($link)
    {
        // [...]
        if ($link->getType() == 'author') {
            return '/author/'.$link->getId().'/'.$link->getSlug();
        }
        if ($link->getType() == 'category') {
            return '/category/'.$link->getUid();
        }
        // ---- Start of the code to add ----
        if ($link->getType() == 'event') {
            return '/event/'.$link->getUid();
        }
        // ---- End of the code to add ----
        // [...]
    }
    // [...]
}