doctrine-orm - 按字符串长度排序

Question

有没有办法根据 Title 字段中包含的字符串的长度对查询进行排序？

    $query = $this->getEntityManager()
        ->createQuery('
    SELECT b FROM AcmeTestBundle:Blog b
    WHERE b.Title LIKE :title'
    )->setParameter('title','%'.$title.'%');

ORDER BY b.Title.length() 似乎不起作用。

Answer 1

是的，试试看:

$query = $this->getEntityManager()->createQuery('SELECT LENGTH(b.Title) l, b FROM AcmeTestBundle:Blog b WHERE b.Title LIKE :title ORDER BY l')->setParameter('title','%'.$title.'%');