语法错误 - 第0行，第469行：错误：预期的已知函数，得到'IF'

Question

嗨，我正在使用doctrine查询构建器来执行查询..

这是我的询问....

return $this->createQueryBuilder('sp')
                        ->select('sp.id, sp.price, sp.offer_price AS offerPrice, sp.price_kg AS PriceKg, '
                                . 'sp.offer_price_kg AS offerPriceKg, sp.status AS status, s.name AS storename')
                        ->addSelect("(CASE WHEN (sp.name IS NULL) THEN p.name ELSE sp.name END) AS spname")
                        ->addSelect("(CASE WHEN (sp.sku IS NULL) THEN p.sku ELSE sp.sku END) AS spsku")
                        ->addSelect("(CASE WHEN (sp.main_image IS NULL) THEN p.main_image ELSE sp.main_image END) AS sp_main_image")
                        ->join('sp.store', 's')
                        ->join('sp.product', 'p')
                        ->Where('IF(sp.name IS NULL, p.name, sp.name) LIKE :val')
                        ->orWhere('sp.sku LIKE :val')
                        ->setParameter('val', '%' . $search . '%')
                        ->getQuery();

如果条件给出错误，似乎这样，

->Where('IF(sp.name IS NULL, p.name, sp.name) LIKE :val')

这是我得到的错误，

[语法错误]第0行，第469行：错误：预期的已知函数，得到'IF'

Answer 1

无论如何，你的语法令人困惑，你为什么不这样做

->where('sp.name IS NULL AND p.name LIKE :val AND sp.name LIKE :val')

在任何情况下，Doctrine都没有内置的“if”功能，所以如果你需要特定的东西，你需要自己编程。

https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/cookbook/dql-user-defined-functions.html