Question

我正在尝试使用cakePHP 3.5中的子查询来构建查询，但是它与预期不符，请在下面找到详细信息并帮助我解决它。

SQL：-

$sql = '
    SELECT 
    t1.id, t1.code, t1.description, t1.customer_id, t1.delivery_date
    (
        SELECT SUM(t2.quantity) AS completed 
        FROM table2 AS t2 
        WHERE t2.customer_id = t1.customer_id 
        AND t2.delivery_date = t1.delivery_date 
    ) AS completed 
    FROM table1 AS t1
';

这是我要使用CakePHP ORM构建的查询

CakePHP查询：-

我已经尝试过以下代码来实现查询

$data = $this->Table1->query->select([
    't1.id', 
    't1.code', 
    't1.description', 
    't1.customer_id', 
    't1.delivery_location_id', 
    'completed' => $this->Table2->find()->select([
        'completed' => 'SUM(Table2.quantity)'
    ])->where([
        'Table2.customer_id' => 'Table1.customer_id',
        'Table2.delivery_location_id' => 'Table1.delivery_location_id'
    ])
]);

实际输出：-

这是我实际使用的CakePHP ORM，您可以在子查询的WHERE条件下看到它为0。

SELECT 
  Table1.id AS `Table1__id`, 
  Table1.code AS `Table1__code`, 
  Table1.description AS `Table1__description`, 
  Table1.customer_id AS `Table1__customer_id`, 
  Table1.delivery_location_id AS `Table1__delivery_location_id`,
  (
    SELECT 
      sum(
        Table2.quantity
      ) AS `completed` 
    FROM 
      table2 Table2 
    WHERE (
      Table2.customer_id = 0 
      AND Table2.delivery_location_id = 0 
    )
  ) AS `completed`, 
FROM 
  table1 Table1 
LIMIT 
  10 OFFSET 0

预期输出：-

我期望输出如下。

SELECT 
  Table1.id AS `Table1__id`, 
  Table1.code AS `Table1__code`, 
  Table1.description AS `Table1__description`, 
  Table1.customer_id AS `Table1__customer_id`, 
  Table1.delivery_location_id AS `Table1__delivery_location_id`,
  (
    SELECT 
      sum(
        Table2.quantity
      ) AS `completed` 
    FROM 
      table2 Table2 
    WHERE (
      Table2.customer_id = Table1.customer_id 
      AND Table2.delivery_location_id = Table1.delivery_location_id 
    )
  ) AS `completed`, 
FROM 
  table1 Table1 
LIMIT 
  10 OFFSET 0

如何在查询条件下比较列？

0 个答案: