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Description
I think find out an little mistake in aggregation:
My mongo query is
db.project_docs.aggregate([ {"$group" : {_id:"$tag", count:{$sum:1}}} ])
above query in package:
ProjectDoc->groupBy('tag')->aggregate('count',['tag'])->get();
but the result is different.
In package after the run aggregate the selected model returned and after calling get method the aggregate doesn't effect the result.
I trace the code and got to the Jenssegers\Mongodb\Query\Builder file.
In 'aggregate' after calling get method null assigned to $this->aggregate variable, which is why the result is incorrect
Jenssegers\Mongodb\Query\Builder
`
public function aggregate($function, $columns = [])
{
$this->aggregate = compact('function', 'columns');
$previousColumns = $this->columns;
// We will also back up the select bindings since the select clause will be
// removed when performing the aggregate function. Once the query is run
// we will add the bindings back onto this query so they can get used.
$previousSelectBindings = $this->bindings['select'];
$this->bindings['select'] = [];
$results = $this->get($columns);
// Once we have executed the query, we will reset the aggregate property so
// that more select queries can be executed against the database without
// the aggregate value getting in the way when the grammar builds it.
$this->aggregate = null;
$this->columns = $previousColumns;
$this->bindings['select'] = $previousSelectBindings;
if (isset($results[0])) {
$result = (array) $results[0];
return $result['aggregate'];
}
}`