尝试使用groupby()方法创建请求,但yii2返回空结果。这是我的行动:
\Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
$data = MachineLog::find()
->select(['sum(value)', 'max(datetime)'])
->where([ '<', 'datetime', $end->format('Y-m-d G:i:s') ])
->andWhere([ '>', 'datetime', $start->format('Y-m-d G:i:s') ])
->andWhere([ 'type' => $type, 'machine_id' => $machineId[0] ])
->groupBy(["UNIX_TIMESTAMP(datetime) DIV $diffInSeconds"])
->all();
return $data;
原始sql提供了足够的结果,请求与yii2生成的相同。
mysql> SELECT sum(value), max(datetime) FROM `machine_log` WHERE (`datetime` < '2018-05-10 17:00:00') AND (`datetime` > '2018-05-10 16:30:00') AND ((`type`='1') AND (`machine_id`='4')) GROUP BY UNIX_TIMESTAMP(datetime) DIV 180;
+------------+---------------------+
| sum(value) | max(datetime) |
+------------+---------------------+
| NULL | 2018-05-10 16:32:52 |
| NULL | 2018-05-10 16:35:52 |
| NULL | 2018-05-10 16:38:52 |
| 2 | 2018-05-10 16:41:59 |
| 36 | 2018-05-10 16:44:59 |
| 36 | 2018-05-10 16:47:59 |
| 36 | 2018-05-10 16:50:59 |
| 36 | 2018-05-10 16:53:59 |
| 35 | 2018-05-10 16:56:59 |
| 37 | 2018-05-10 16:59:59 |
+------------+---------------------+
10 rows in set (0.06 sec)
yii版本2.0.15.1
1条答案
按热度按时间5hcedyr01#
默认情况下
all()
返回模型数组。如果您像这样构建自定义查询,在select()
,您需要使用asArray()
强制将行作为数组而不是ActiveRecord
对象(无法从查询结果中创建)。