public function addFilter(AbstractQuery $filter, $name = null)
{
if (null !== $name && !is_string($name)) {
throw new InvalidException('Name must be a string');
}
$filterArray = [];
$type = self::NAMED_TYPE;
if (null === $name) {
$filterArray[] = $filter;
$type = self::ANONYMOUS_TYPE;
} else {
$filterArray[$name] = $filter;
}
if ($this->hasParam('filters') && count($this->getParam('filters')) && $this->_type !== $type) {
throw new InvalidException('Mix named and anonymous keys are not allowed');
}
$this->_type = $type;
return $this->addParam('filters', $filterArray);
} /**
* @group functional
*/
public function testFilterAggregation()
{
$agg = new Filters('by_color');
$agg->addFilter(new Term(array('color' => 'blue')), 'blue');
$agg->addFilter(new Term(array('color' => 'red')), 'red');
$avg = new Avg('avg_price');
$avg->setField('price');
$agg->addAggregation($avg);
$query = new Query();
$query->addAggregation($agg);
$results = $this->_getIndexForTest()->search($query)->getAggregation('by_color');
$resultsForBlue = $results['buckets']['blue'];
$resultsForRed = $results['buckets']['red'];
$this->assertEquals(2, $resultsForBlue['doc_count']);
$this->assertEquals(1, $resultsForRed['doc_count']);
$this->assertEquals((5 + 8) / 2, $resultsForBlue['avg_price']['value']);
$this->assertEquals(1, $resultsForRed['avg_price']['value']);
}