Doctrine 2 - 如何在where子句中使用discriminator列 [英] Doctrine 2 - How to use discriminator column in where clause

问题描述

我在where子句中使用了discriminator列，如下所示：

I was used discriminator column in where clause like this:

//f = root entity
$qb = $this->createQueryBuilder('f');
$qb->add('where', 'f.format = \'image\' OR f.format = \'text\'');

我有一个错误：消息：[语义错误]行0，col 73 near' format ='image''：错误：类Entities\File\AbstractFile没有字段或关联命名格式

I've got an error: "Message: [Semantical Error] line 0, col 73 near 'format = 'image'': Error: Class Entities\File\AbstractFile has no field or association named format"

我如何在where子句中使用discriminator列？

How can i use discriminator column in where clause?

谢谢。

推荐答案

我认为你应该使用< href =http://www.doctrine-project.org/docs/orm/2.0/en/reference/dql-doctrine-query-language.html#dql-select-examples =noreferrer> INSTANCE OF

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