Question

在第一栏的gridview中，我有一个快递列表。我需要计算每个快递的订单数量。在sql中它看起来像

SELECT order_customFields.order_customFields_delivery_method,
    sum(case `order`.order_status when 'sent' then 1 else 0 end) paid
FROM order_customFields 
  INNER JOIN `order` ON order_customFields.order_id = `order`.order_id
WHERE
  order_customFields.order_customFields_order_date >= '2016-12-01' AND
  order_customFields.order_customFields_order_date <= '2016-12-31' 
AND order_customFields.order_customFields_delivery_method = eu_dpd;

如果我使用couriers创建数组并在foreach中执行sql查询，例如

，该怎么办？

`$courier = [eu_dpd,eu_dhl,eu_ups]
foreach ($courier  as $value) {
    SELECT order_customFields.order_customFields_delivery_method,
    sum(case `order`.order_status when 'sent' then 1 else 0 end) paid
FROM order_customFields 
  INNER JOIN `order` ON order_customFields.order_id = `order`.order_id
WHERE
  order_customFields.order_customFields_order_date >= '2016-12-01' AND
  order_customFields.order_customFields_order_date <= '2016-12-31' 
AND order_customFields.order_customFields_delivery_method = $value;
}`

如何在yii2中应用它？

Answer 1

对于复杂查询，一种简单的方法是基于普通数据库连接的createCommand

$yourModel = Yii::$app->db->createCommand(
  "SELECT order_customFields.order_customFields_delivery_method as deliver_method,
      sum(case `order`.order_status when 'sent' then 1 else 0 end) paid
  FROM order_customFields 
  INNER JOIN `order` ON order_customFields.order_id = `order`.order_id
  WHERE order_customFields.order_customFields_order_date >= '2016-12-01' 
  AND order_customFields.order_customFields_order_date <= '2016-12-31' 
  AND order_customFields.order_customFields_delivery_method  = '" .$value . "';")->queryOne();

然后您可以将结果称为

echo $yourModel['deliver_method'];
echo $yourModel['paid'];

对于gridview，您可以使用sqlDataProvider并将dataProvider传递给您的视图http://www.yiiframework.com/doc-2.0/yii-data-sqldataprovider.html

用于gridview yii2的foreach中的SQL查询

1 个答案: