使用没有实体类的本机SQL查询

I need to create native SQL query with couple of unions and subqueries. It'll look approximately like this:

我需要使用几个联合和子查询创建本机SQL查询。它看起来大致如下：

SELECT res.id, COUNT(*) as count_ids
FROM (
    SELECT a.id FROM ... a WHERE ... LIKE ('%:param%')
    UNION ALL
    SELECT b.id FROM ... b WHERE ... LIKE ('%:param%')
    UNION ALL
    ...
) res
GROUP BY res.id
ORDER BY count_ids asc

Result won't match any Entity I use in my application. Is it possible to create ResultSetMapping with "anonymous" object? Or is it, at least, possible to create an Entity that wouldn't create table next time I update schema, so I can map results to it?

结果将不匹配我在我的应用程序中使用的任何实体。是否可以使用“匿名”对象创建ResultSetMapping？或者，至少可以创建一个实体，下次我更新架构时不会创建表，所以我可以将结果映射到它？

Or is there any other Doctrine-friendly way to deal with such query? Making changes to database isn't possible though, as I'm dealing with legacy stuff that cannot be touched. I'd also strongly prefer if I did everything on database side, not involving much of PHP in it.

或者是否有任何其他Doctrine友好的方式来处理这样的查询？但是，对数据库进行更改是不可能的，因为我正在处理无法触及的遗留内容。如果我在数据库方面做了所有事情，并且不涉及大量PHP，我也非常喜欢。

2 个解决方案

#1

Do you have a particular need to map results to a domain object? If not, you could use the DBAL to make a plain old query, which will return an array, as detailed in the Symfony2 cookbook and the Doctrine DBAL documentation:

您是否特别需要将结果映射到域对象？如果没有，您可以使用DBAL创建一个普通的旧查询，它将返回一个数组，详见Symfony2 cookbook和Doctrine DBAL文档：

$conn = $this->container->get('database_connection');
$sql = 'SELECT res.id, COUNT(*)...';
$rows = $conn->query($sql);

2 个解决方案

#1

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