How to do facets with date (Datehistogram) on Symfony2 : Fos ElasticaBundle - symfony

Question

how to do a facet and aggreagtion query with date in elasticsearch on symfony2 ?
thanks for your help!
Hugo.
I need to have this result : total of server by year.
Here is my code but, I have not of result or in my Twig I don't know how I can view a result.
Thanks.
Hugo
$search = $this->get('fos_elastica.index.serveurs.serveur');
$queryServeurs = new \Elastica\Query\MatchAll();
$elasticaQueryServeurs = new \Elastica\Query();
$elasticaQueryServeurs->setQuery($queryServeurs);
$elasticaQueryServeurs->setSize(0);
$elasticaAggregDateServeur = new \Elastica\Aggregation\DateHistogram('dateHistogram','dateGarantie','year');
$elasticaAggregDateServeur->setFormat("dd-MM-YYYY");
$typesServeursaggregation = new \Elastica\Aggregation\Terms('types');
$typesServeursaggregation->setField("type");
$elasticaAggregDateServeur->addAggregation($typesServeursaggregation);
$elasticaQueryServeurs->addAggregation($elasticaAggregDateServeur);
$resultsServeursDate[] =$elasticaQueryServeurs;
return $this->container->get('templating')->renderResponse('VefsiffReferentielsBundle:stats:stats.html.twig', array(
'serveursdates' => $resultsServeursDate ));

Answer 1

I posted a new code for aggregation with a date of serveur.
One condition for use DateHistogram : the field "dateGarantie" must be of type Date in your file config.yml.
Extract to the file config.yml :
dateGarantie: {type: date}
here extract to the file controller :
$search = $this->get('fos_elastica.index.serveurs.serveur');
$queryServeurs = new \Elastica\Query\MatchAll();
$elasticaQueryServeurs = new \Elastica\Query();
$elasticaQueryServeurs->setQuery($queryServeurs);
$elasticaQueryServeurs->setSize(0);
$elasticaAggregDateServeur = new \Elastica\Aggregation\DateHistogram('dateHistogram','dateGarantie','year');
$elasticaAggregDateServeur->setFormat("YYYY");
$elasticaQueryServeurs->addAggregation($elasticaAggregDateServeur);
$resultsDateServeurs = $search->search($elasticaQueryServeurs);
return $this->container->get('templating')->renderResponse('refBundle:stats:stats.html.twig', array(
'serveursdates' => $resultsDateServeurs->getAggregations()));
finally this is a code for twig. I use the code of Morris for have beautiful graphs :
<div class="col-sm-8">
<h3>Serveurs à changer</h3>
<style>
#serveur2 {
width: 800px;
height: 300px;
margin: auto 0 auto;
</style>
<div id="serveur2"></div>
<script>
// Use Morris.Bar
Morris.Bar({
element: 'serveur2',
data: [ {% for serveursdate in serveursdates.dateHistogram.buckets %}
{x: '{{serveursdate.key_as_string}}' ,Total: {{ serveursdate.doc_count }} },
{% endfor %} ],
xkey: 'x',
ykeys: [ 'Total'],
labels: ['Total Serveur'],
barColors: function (row, series, type)
{
if (type === 'bar')
{
var red = Math.ceil(255 * row.y /this.ymax);
return 'rgb(' + red + ',0,0)';
}
else {
return '#000';
}
}
});
</script>
<hr>
</div