|
public sum ( string $q, |
||
| $q | string | the column name. Make sure you properly quote column names in the expression. |
| $db | the Mongo connection used to execute the query. If this parameter is not given, the `mongodb` application component will be used. | |
| return | integer | the sum of the specified column values |
public function sum($q, $db = null)
{
return $this->aggregate($q, 'sum', $db);
}