Question

我有多个选择字段的奇怪问题。这是我的问题：

$query = $queryBuilder
            ->select(
                [
                    'SUM(t1.quantity) AS quantity_t1',
                    't2.currency AS currency_t2',
                    'SUM(t1.amount - t1.promotionDiscount) AS amount_t1',
                    'SUM(ROUND((t1.amount - t1.promotionDiscount) / ((100 + t2.tax) / 100), 2)) AS amount_net',
                    'SUM(ROUND((t1.amount - t1.promotionDiscount) / '.EXCHANGE_RATE_GBP.', 2)) AS amount_gbp',
                    'SUM(ROUND(ROUND((t1.amount - t1.promotionDiscount) / '.EXCHANGE_RATE_GBP.', 2) / ((100 + t2.tax) / 100), 2)) AS amount_gbp_net'
                ]
            )
            ->from(Sale::class, 't2')
            ->join(
                SaleRow::class,
                't1',
                Join::WITH,
                $queryBuilder->expr()->andX(
                    $queryBuilder->expr()->eq('t1.saleId', 't2.id')
                )
            )
            ->where(
                $queryBuilder->expr()->between('t2.purchaseTime', ':start', ':end')
            )
            ->andWhere(
                $queryBuilder->expr()->in('t2.orderStatus', ':status')
            )
            ->setParameters(
                [
                    ':start' => $startDate->format('Y-m-d H:i:s'),
                    ':end' => $endDate->format('Y-m-d H:i:s'),
                    ':status' => ['pending', 'shipped']
                ]
            )
            ->getQuery();

        $results = $query->getArrayResult();

查询有效，但仅限于我改变我的选择数组：

例如：

->select(
    [
       't1.id',
       't2.id'
    ]
 )

非常奇怪...... 这有效：

->select(
    [
        'SUM(t1.quantity) AS quantity_t1',
        'SUM(t1.amount - t1.promotionDiscount) AS amount_t1'
    ]
)

这也是：

->select(
    [
        't2.currency AS currency_t2',
    ]
)

但是......这不起作用：

->select(
    [
        'SUM(t1.quantity) AS quantity_t1',
        't2.currency AS currency_t2',
    ]
)

为什么？

Answer 1

您不能在SQL查询中将聚合与非聚合混合在一起。

因为聚合将返回一个值。非聚合将返回每个值。

如何在响应中混合这些结果？

其他问题，您在DQL中使用ROUND()函数。但是这个功能不存在，你必须register it a custom DQL function。

请参阅this question。

Doctrine QueryBuilder - 多个选择字段

1 个答案: