Sorting in FOSElasticaBundle - symfony

Question

I use FOSElasticaBundle in my project to search on my Player entity. As i only want to search entities with the property isactive on a value 1, i followed the documentation on "Filtering Results and Executing a Default Query": FriendsOfSymfony/FOSElasticaBundle/README.md
$query = new \Elastica\Query\QueryString($searchterm);
$term = new \Elastica\Filter\Term(array('isactive' => true));
$filteredQuery = new \Elastica\Query\Filtered($query, $term);
$players = $this->get('fos_elastica.finder.xxx.player')->find($filteredQuery);
The configuration of my bundle looks like following:
fos_elastica:
clients:
default: { host: localhost, port: 9200 }
serializer:
callback_class: FOS\ElasticaBundle\Serializer\Callback
serializer: serializer
indexes:
xxx:
client: default
types:
player:
mappings:
firstname: { boost: 3 }
lastname: { boost: 3 }
serializer:
groups: [elastica, Default]
persistence:
driver: orm
model: xxx\FrontendBundle\Entity\Player
listener: ~
provider: ~
finder: ~
Now i want to do some sorting and cut back the result with limit and offset. How can i achieve this?
I found a solution like
$finalQuery = new \Elastica\Query($boolQuery);
$finalQuery->setSort(array('price' => array('order' => 'asc')));
But i dont have an Elastica\Query object and the AbstractQuery didn't support this method. Same with
$elasticaQuery->addSort($sort);
What to do? Where to read?? ://
(in addition, if we are here already: what does {boost: 3} really do exactly?)

Answer 1

you have to create a generic Elastica\Query() object.
Then you can add sort to this query with ->addSort($sort)
And later you can assign a proper query with ->setQuery();
Your example should look like this
$query = new \Elastica\Query();
$query->addSort(array('price' => array('order' => 'asc')));
$q = new \Elastica\Query\QueryString($searchterm);
$term = new \Elastica\Filter\Term(array('isactive' => true));
$filteredQuery = new \Elastica\Query\Filtered($q, $term);
$query->setQuery($filteredQuery);
$players = $this->get('fos_elastica.finder.xxx.player')->find($query);
Boost allows you to make one field more\less important than other within a query.