GroupBy 和日期

Question

我正在尝试获取每一天的预订量。我已经完成了这个学说要求：

   // prepare date for request
    $today = new DateTime('now');
    $lastMonth = new DateTime('-30 days');

    $qb
        ->select('r.reservationDate, sum(r.totalAmountNoTaxes) as totalAmountNoTaxes')
        ->where('r.companyId = :companyId')
        ->setParameter('companyId', $companyId)
        ->andWhere('r.reservationDate BETWEEN :month AND :today')
        ->setParameter('month', $lastMonth->format('Y-m-d'))
        ->setParameter('today', $today->format('Y-m-d'))
        ->orderBy('r.reservationDate', 'ASC')
        ->groupBy('r.reservationDate')
    ;

我得到了这样的结果（来自我的网络服务）

 {
      "reservationDate": "2016-12-21T07:41:12+0000",
      "totalAmountNoTaxes": "26150.30"
    },
    {
      "reservationDate": "2016-12-22T07:41:01+0000",
      "totalAmountNoTaxes": "230.00"
    },
    {
      "reservationDate": "2016-12-22T07:41:02+0000",
      "totalAmountNoTaxes": "21966.40"
    },
    {
      "reservationDate": "2016-12-23T07:40:52+0000",
      "totalAmountNoTaxes": "20407.05"
    },
    {
      "reservationDate": "2016-12-24T07:40:41+0000",
      "totalAmountNoTaxes": "4319.75"
    },
    {
      "reservationDate": "2016-12-24T07:40:42+0000",
      "totalAmountNoTaxes": "7261.20"
    },
    {
      "reservationDate": "2016-12-25T07:40:28+0000",
      "totalAmountNoTaxes": "14821.45"
    },
    {
      "reservationDate": "2016-12-26T07:40:16+0000",
      "totalAmountNoTaxes": "494.50"
    },
    {
      "reservationDate": "2016-12-26T07:40:17+0000",
      "totalAmountNoTaxes": "14541.25"
    },
    {
      "reservationDate": "2016-12-27T07:06:40+0000",
      "totalAmountNoTaxes": "25763.90"
    },
    {
      "reservationDate": "2016-12-28T05:37:43+0000",
      "totalAmountNoTaxes": "20595.70"
    }

问题是有时日期分组不正确。例如，将 2016-12-22 拆分为 2。与 24、26 相同。

我该怎么办？

Answer 1

您的数据库中似乎有日期时间字段。解决方案将按日期格式分组：

//
->groupBy('DATE_FORMAT(r.reservationDate, '%Y%m%d')')
//

但是 DATE_FORMAT isnt implemented in default doctrine bundle, so you will have to add beberlei/DoctrineExtensions 然后将相应的函数添加到您的学说包配置中，例如：

doctrine:
    dbal:
        ....
    orm:
        ....
        dql:
            string_functions:
                DATE_FORMAT: DoctrineExtensions\Query\Mysql\DateFormat

GroupBy 和日期

GroupBy and date

mysql

doctrine

doctrine-query

symfony