/**
* 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();
}
/**
* Gets test data for the pipeline builder.
*/
public function provideAggregationPipelineTestData()
{
$unwind1 = new Unwind();
$unwind1->setField('foo');
$unwind2 = new Unwind();
$unwind2->setField('bar');
$unwind3 = new Unwind();
$unwind3->setField('baz');
$bag = new AggregationBag();
$bag->addAggregation($unwind2);
$builder = new PipelineBuilder();
$builder->add($unwind3);
return [[[$unwind1], [['$unwind' => '$foo']]], [[$bag], [['$unwind' => '$bar']]], [[$builder], [['$unwind' => '$baz']]], [[$unwind1, $bag, $builder], [['$unwind' => '$foo'], ['$unwind' => '$bar'], ['$unwind' => '$baz']]]];
}
