/**
* Gets the aggregation pipeline
*
* @param array $query
* @param string $category
* @param mixed $ranges
* @return array
*/
private function getAggregationPipeline(array $query, $category, $ranges)
{
$pipelineBuilder = new PipelineBuilder();
$categoryQuery = array();
$categoryQuery[] = array($category => array('$exists' => true));
if (isset($ranges) && is_array($ranges) && $this->getRangeType($ranges) === static::MINMAX) {
$categoryQuery[] = array('$or' => array(array($category => array('$type' => 1)), array($category => array('$type' => 16)), array($category => array('$type' => 18))));
}
unset($query[$category]);
$query['$and'] = $categoryQuery;
$match = new Match();
$match->setQuery($query);
$pipelineBuilder->add($match);
if (is_array($ranges) && static::getRangeType($ranges) === static::MINMAX) {
$rangeProjection = new RangeProjection();
$rangeProjection->addRange($category, $ranges);
$pipelineBuilder->add($rangeProjection);
} else {
$pipelineBuilder->addBuilder(new UnwindBuilder($category));
}
$group = new Group();
$group->setGroupBy($category);
$sum = new Sum();
$sum->setSum(1);
$group->setResultField('count', $sum);
$pipelineBuilder->add($group);
return $pipelineBuilder->build();
}
/**
* Tests grouping some data.
*/
public function testGroupData()
{
$testData = [['foo' => 'foo'], ['foo' => 'foo'], ['foo' => 'bar'], ['foo' => 'bar'], ['foo' => 'bar']];
foreach ($testData as $test) {
$this->collection->save($test);
}
$match = new Match();
$match->setQuery(['foo' => 'foo']);
$result = $this->collection->aggregate([$match->getStage()]);
$this->assertEquals(2, count($result['result']));
}