Doctrine INNER/LEFT JOIN 两张表

Question

I am learning from this Question but facing issues with many operations in between:

doctrine 2 query builder and join tables

以下是我的问题。我也在寻求上一个问题的帮助。感谢那些帮助我解决问题的人。

我在 Doctrine 2.3 中创建一个大查询，操作对我来说并不熟悉。但是我在很多人的帮助下学会了。目前，我正面临 3 个表之间的内部连接问题。

我的关节：

SELECT *
FROM user AS u
LEFT JOIN source AS s ON u.user_source_fk=s.source_id
LEFT JOIN area AS a ON s.source_node_fk = a.area_id;

上面的查询是我试图在 Doctrine 中转换的。

我试图像这样给出查询，但它不起作用：

SELECT a FROM Ipf\Model\User u LEFT JOIN Ipf\Model\Sources ON u.user_source_fk=s.source_id LEFT JOIN Ipf\Model\Area aa ON s.source_node_fk = aa.area_id;

我的原始查询将如何：

1 Doctrine JOIN 查询：

SELECT *
FROM user AS u
LEFT JOIN source AS s ON u.user_source_fk=s.source_id
LEFT JOIN area AS a ON s.source_node_fk = a.area_id;

+

SELECT * FROM user WHERE 
(`user_name` like '%TOM%' OR `user_name` like '%AN%' and `login_datetime` BETWEEN '2013-01-01 00:00:00' and '2013-02-31 23:59:59') OR
NOT ( --NOR
   (`user_name` like '%PHP%' OR `user_name` like '%BA%' and `login_datetime` BETWEEN '2013-02-01 00:00:00' and '2013-03-31 23:59:59') OR
   (`user_name` like '%SUN%' OR `user_name` like '%MOON%' and `login_datetime` BETWEEN '2013-03-01 00:00:00' and '2013-04-31 23:59:59')
) OR
NOT ( --NAND
   (`user_name` like '%RAJ%' OR `user_name` like '%MUTH%' and `login_datetime` BETWEEN '2013-04-01 00:00:00' and '2013-06-31 23:59:59') AND
   (`user_name` like '%BAG%' OR `user_name` like '%LAP%' and `login_datetime` BETWEEN '2013-05-01 00:00:00' and '2013-07-31 23:59:59')
)

我想用上面的查询对查询做内联，即与运算符Refer:Multiple Query in Doctrine with NAND,NOR,NOT,AND Operators 的内联

如何加入表并执行查询？

2 学说查询生成：

$qry = $this->manager()->createQueryBuilder()
        ->from($this->entity, 'e')
        ->select('e');


// (`user_name` like '%TOM%' OR `user_name` like '%AN%' and `login_datetime` BETWEEN '2013-01-01 00:00:00' and '2013-02-31 23:59:59')
$expr1 = $qry->expr()->andX(
    $qry->expr()->orX(
       $qry->expr()->like('e.user_name', '%TOM%'), 
       $qry->expr()->like('e.user_name', '%AN%')
    ),
    $qry->expr()->between('e.login_datetime', '2013-02-01 00:00:00', '2013-02-31 23:59:59')
);

//(`user_name` like '%PHP%' OR `user_name` like '%BA%' and `login_datetime` BETWEEN '2013-02-01 00:00:00' and '2013-03-31 23:59:59')

$expr2a = $qry->expr()->andX(
    $qry->expr()->orX(
       $qry->expr()->like('e.user_name', '%PHP%'), 
       $qry->expr()->like('e.user_name', '%BA%')
    ),
    $qry->expr()->between('e.login_datetime', ''2013-02-01 00:00:00'', '2013-03-31 23:59:59')
);

// (`user_name` like '%SUN%' OR `user_name` like '%MOON%' and `login_datetime` BETWEEN '2013-03-01 00:00:00' and '2013-04-31 23:59:59')
$expr2b = $qry->expr()->andX(
    $qry->expr()->orX(
       $qry->expr()->like('e.user_name', '%SUN%'), 
       $qry->expr()->like('e.user_name', '%MOON%')
    ),
    $qry->expr()->between('e.login_datetime', '2013-03-01 00:00:00', '2013-04-31 23:59:59')
);

// combine expr2a and expr2b with OR as $expr2

$expr2 = $qry->expr()->orX($expr2a, $expr2b);


// (`user_name` like '%RAJ%' OR `user_name` like '%MUTH%' and `login_datetime` BETWEEN '2013-04-01 00:00:00' and '2013-06-31 23:59:59')

$expr3a = $qry->expr()->andX(
    $qry->expr()->orX(
       $qry->expr()->like('e.user_name', '%RAJ%'), 
       $qry->expr()->like('e.user_name', '%MUTH%')
    ),
    $qry->expr()->between('e.login_datetime', ''2013-04-01 00:00:00'', '2013-06-31 23:59:59')
);

// (`user_name` like '%BAG%' OR `user_name` like '%LAP%' and `login_datetime` BETWEEN '2013-05-01 00:00:00' and '2013-07-31 23:59:59')
$expr3b = $qry->expr()->andX(
    $qry->expr()->orX(
       $qry->expr()->like('e.user_name', '%BAG%'), 
       $qry->expr()->like('e.user_name', '%LAP%')
    ),
    $qry->expr()->between('e.login_datetime', '2013-05-01 00:00:00', '2013-07-31 23:59:59')
);

// combine expr2a and expr2b with OR as $expr2

$expr3 = $qry->expr()->andX($expr3a, $expr3b);


// final query essentially WHERE expr1 OR NOT(expr2) OR NOT(expr3)
$qry->where($expr1)
    ->or($qry->expr()->not($expr2))
    ->or($qry->expr()->not($expr3));

如何通过JOIN操作修改实现上述查询？

谁能帮我解决我的问题。它在教义上对我来说是一场噩梦......

Answer 1

您查询的复杂部分实际上是WHERE，因此您应该能够毫无问题地添加连接。

$qry = $this->manager()->createQueryBuilder()
        ->select(array('e', 's', 'a'))
        ->from($this->entity, 'e')
        ->leftJoin('e.sources', 's')
        ->leftJoin('s.node', 'a');

然后您将按原样执行其余的查询逻辑。

需要提到的一件事是，在 DQL 中，您处理的是实体及其属性，而不是表和列。

所以在我的示例中，e.sources 需要是您的 User 实体上的 UserSource 实体/集合的映射属性名称。同样，s.node 需要是Area 实体/集合在UserSource 上的映射属性名称。