/**
* @param string $func
* @param string $column
* @param \anlutro\LaravelRepository\CriteriaInterface[] $criteria
* @return array
*/
protected function aggregateInterval($func, $column, array $criteria = [])
{
$query = $this->db->table($this->model->getTable());
$this->interval->applyQuery($query);
array_map(function ($criteria) use($query) {
$criteria->apply($query);
}, $criteria);
$expression = $this->db->raw("{$func}({$column}) as `__aggregate__`");
$query->addSelect($expression);
return $this->interval->parse($query->get(), $this->start, $this->end);
}