Question

美好的一天，大家！

我有以下Doctrine查询来检索一些CTI实体：

SELECT s.id 
FROM CRM\SpendBundle\Entity\Spend s
WHERE (CASE 
        WHEN s INSTANCE OF 'CRM\BusinessTripBundle\Entity\BusinessTrip' THEN 'Business Trip' 
        WHEN s INSTANCE OF 'CRM\ExpenseRequestBundle\Entity\ExpenseRequest' THEN 'Expense Request' 
        ELSE '' END) IN(:availableSpends)

参数availableSpends只是一个字符串数组：

availableSpends = array('Expense Request')

此查询会抛出错误：

[Syntax Error] line 0, col 439: Error: Expected =, <, <=, <>, >, >=, !=, got 'IN'

如何使用CASE语句来避免此错误？ Doctrine版本是2.5.1

Answer 1

您可以重写该语句，以防它不能与您合作，如下所示：

SELECT s.id 
FROM CRM\SpendBundle\Entity\Spend s
WHERE (s INSTANCE OF 'CRM\BusinessTripBundle\Entity\BusinessTrip' and 'Business Trip' IN (:availableSpends))
   or (s INSTANCE OF 'CRM\ExpenseRequestBundle\Entity\ExpenseRequest' and 'Expense Request' IN (:availableSpends))

与WHERE IN声明时的学说情况

1 个答案: