Làm thế nào để viết truy vấn union trong học thuyết?

Vâng, tôi đã tìm ra một giải pháp

Chúng ta có thể sử dụng truy vấn này với RSM như sau

"Usman về cơ bản là tên bảng và lớp"

    $rsm = new ResultSetMapping();
    $rsm->addEntityResult('Usmans', 'u');
    $rsm->addFieldResult('u', 'orderid', 'orderid');
    $rsm->addFieldResult('u', 'tutorialId', 'tutorialid');
    $rsm->addFieldResult('u', 'points', 'points');

    $query = $this->Doctrine->createNativeQuery('SELECT * FROM usman', $rsm); 
    $tutorial_tests = $query->getResult();

VÀ chúng ta có thể sử dụng mà không cần ORM như

$testQuery = "
    select * from (
            select orderid, 
                tutorialId, 
                points, 
                allow_multiple, 
                question, 
                answer1, 
                image1, 
                correct1, 
                answer2, 
                image2, 
                correct2, 
                answer3, 
                image3, 
                correct3, 
                answer4, 
                image4, 
                correct4, 
                answer5, 
                image5, 
                correct5, 
                '1' as istest, 
                '' as content, 
                '' as media, 
                '' as media_type_id 
            from tutorial_test

            union

            select orderid, 
                tutorialId, 
                '0' as istest, 
                content, 
                media, 
                media_type_id, 
                '' as points, 
                '' as allow_multiple, 
                '' as question, 
                '' as answer1, 
                '' as image1,
                '' as correct1,
                '' as answer2,
                '' as image2,
                '' as correct2,
                '' as answer3,
                '' as image3,
                '' as correct3,
                '' as answer4,
                '' as image4,
                '' as correct4,
                '' as answer5,
                '' as image5,
                '' as correct5  
            from tutorial_elements
        ) a 
        where a. tutorialId = $tutorial_id 
        order by orderid asc
";

$resultSets = $this->Doctrine->getConnection()->fetchAll($testQuery);