Doctrine FIND_IN_SET leads to Error: Expected end of string, got '('

Question

我在 Symfony2 中有以下学说查询：

$query = $em
    ->createQuery("
        SELECT m FROM MyBackendBundle:Merchant m
        WHERE m.active = :active
        ORDER BY FIND_IN_SET(m.range, 'all', 'without_special'), m.tradingAmount DESC
    ")
    ->setParameter('active', true)
;

但这会导致以下错误：

[Syntax Error] line 0, col 112: Error: Expected end of string, got '('

和：

QueryException: 
SELECT m FROM My\Bundle\BackendBundle\Entity\Merchant m 
WHERE m.active = :active 
ORDER BY FIND_IN_SET(m.range, 'all', 'without_special') ASC, m.tradingAmount DESC

我用FIND_IN_SETdoctrine extension from beberlei是为了能够在查询中使用它。

知道为什么会这样吗？

更新：

这样使用 SELECT 中的 FIND_IN_SET 作为别名：

SELECT m, FIND_IN_SET(m.range, 'all', 'without_special') AS HIDDEN findInSet
FROM MyBackendBundle:Merchant 
WHERE m.active = :active
ORDER BY findInSet, m.productAmount DESC

导致以下错误：

[Syntax Error] line 0, col 56: Error: Expected Doctrine\ORM\Query\Lexer::T_CLOSE_PARENTHESIS, got ','

Answer 1

感谢@qooplmao 的评论，这是工作版本：

$query = $em
    ->createQuery("
        SELECT m, FIND_IN_SET(m.range, 'all,without_special') AS rangeOrdering
        FROM MyBackendBundle:Merchant m
        WHERE m.active = :active
        ORDER BY rangeOrdering, m.tradingAmount DESC
    ")
    ->setParameter('active', true)
;

FIND_IN_SET 只有两个参数并且必须在查询的 SELECT 部分内，因为不能在查询的 ORDER BY 部分中使用函数。

Doctrine FIND_IN_SET leads to Error: Expected end of string, got '('

Doctrine FIND_IN_SET leads to Error: Expected end of string, got '('

php

doctrine

symfony

doctrine-extensions