我可以使用以下代码对 gridview 中的列求和:
<?php
$command = Yii::$app->db->createCommand("SELECT sum(net_total) FROM estimate");
$sum = $command->queryScalar();
echo 'Total ='. $sum;
?>
我在数据库中有一列作为 discharge_date
(这是日期和时间字段),我想更改此列上过滤器的总和。也就是说,如果过滤后的数据显示五个记录,那么我只想要这五个记录的总和。
谢谢。
根据回答更新
代码是这样的:
$query = app\models\Estimate::find();
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
$ids = [];
foreach($dataProvider as $i => $model) {
$ids[] = $model->id;}
$command = Yii::$app->db->createCommand("SELECT sum(net_total) FROM estimate WHERE `id` IN ('.implode(',',$ids).')"); // please use a prepared statement instead, just a proof of concept
$sum = $command->queryScalar();
echo $sum;
现在我在线上收到错误
$ids[] = $model->id;
as 获取未知属性:yii\db\ActiveQuery::id
最佳答案
您是否尝试将此查询直接添加到 ActiveDataprovider?如解释的那样,可以指定额外的查询部分 here ,这应该是一个可能的解决方案。或者,您可以尝试从结果的 ActiveDataprovider 中提取 ID,并使用它们修改您的辅助查询。
第二种方法的例子:
// You should make sure that the same parameters are passed to
// the GridView's ActiveDataProvider and the Model's find() function
$idQuery = Estimate::find()->all();
$ids = [];
foreach ($idQuery as $i => $model) {
$ids[] = $model['id'];
}
$command = Yii::$app->db->createCommand('SELECT sum(net_total) FROM estimate WHERE `id` IN ('.implode(',',$ids).')'); // please use a prepared statement instead, just a proof of concept
$sum = $command->queryScalar();
关于php - Yii2:Gridview 中过滤值列的总和,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29174923/