我有两张桌子: 存档
+-------------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| author | varchar(100) | NO | | NULL | |
| title | varchar(100) | NO | | NULL | |
+-------------+--------------+------+-----+---------+----------------+
和集合
+------------+---------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+---------+------+-----+---------+-------+
| user_id | int(11) | NO | PRI | NULL | |
| archive_id | int(11) | NO | PRI | NULL | |
+------------+---------+------+-----+---------+-------+
这些表与ManyToMany关系链接,当然我也有一个用户表。生成集合表运行php app / console doctrine:schema:update并且有实体定义:
USER ENTITY
/**
* @ORM\OneToMany(targetEntity="My\ApplicationBundle\Entity\Archive", mappedBy="user")
**/
protected $archives;
/**
* @ORM\ManyToMany(targetEntity="My\ApplicationBundle\Entity\Archive", inversedBy="users")
* @ORM\JoinTable(name="collection")
**/
private $collection;
ARCHIVE ENTITY
/**
* @ORM\ManyToOne(targetEntity="My\UserBundle\Entity\User", inversedBy="archives")
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
**/
protected $user;
/**
* @ORM\ManyToMany(targetEntity="My\UserBundle\Entity\User", mappedBy="collection")
**/
private $users;
当我在存档表中搜索某些内容时,es:
select a.id, a.author, a.title, IF((select c.archive_id from collection c where c.archive_id = a.id and c.user_id = 1),1,0) as present from archive a;
我还会有一个列,指示用户(es:id:1)是否在其集合中包含此存档,因此我的结果集应该类似于
+----+---------------+--------------+---------+
| id | author | title | present |
+----+---------------+--------------+---------+
| 8 | test author 7 | test title 7 | 1 |
| 9 | test author 8 | title 8 | 0 |
| 10 | test 8 pdf | title 9 pdf | 1 |
+----+---------------+--------------+---------+
如何使用doctrine DQB / DQL翻译上面的查询?非常感谢
答案 0 :(得分:0)
在具有属性ArchiveContact
的2个实体之间添加实体present
,并查询此新实体。
此类实体from Doctrine documentation的示例,实体order
代替user
,实体product
代替archive
,属性{{1而不是offeredPrice
:
在经典订单产品商店的例子中,有一个概念 订单商品,其中包含对订单和产品的引用 其他数据,如购买的产品数量和可能 即使是现在的价格。
present