setFormat() public méthode

Set the format for returned bucket key_as_string values.
See link: https://www.elastic.co/guide/en/elasticsearch/reference/master/search-aggregations-bucket-daterange-aggregation.html#date-format-pattern
public setFormat ( string $format )
$format string see link for formatting options
DateHistogram Class Documentation
Exemple #1
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 private function getDatedStatsQuery($journal)
 {
     $filter = new Term();
     $filter->setTerm('journalUsers.journal.id', $journal->getId());
     $filterQuery = new Query\Filtered();
     $filterQuery->setFilter($filter);
     $query = new Query($filterQuery);
     $dateHistogram = new DateHistogram('dateHistogram', 'created', 'month');
     $dateHistogram->setFormat("YYYY-MM-dd");
     $query->addAggregation($dateHistogram);
     $query->setSize(0);
     return $query;
 }
Exemple #2
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 private function getStatsQuery(Journal $journal)
 {
     $filter = new Term();
     $filter->setTerm('journal.id', $journal->getId());
     $filterQuery = new Filtered();
     $filterQuery->setFilter($filter);
     $query = new Query($filterQuery);
     $dateHistogram = new DateHistogram('dateHistogram', 'created', 'month');
     $dateHistogram->setFormat("YYYY-MM-dd");
     $query->addAggregation($dateHistogram);
     $genderAggregation = new Terms('language');
     $genderAggregation->setField('locale');
     $query->addAggregation($genderAggregation);
     $query->setSize(0);
     return $query;
 }