蛋糕php 3.x，模型连接3表

Question

我正在尝试加入蛋糕php中的3个表。我会把桌子缩短，我得把它简单化。

table_users(
    id int primary key,
    username varchar(10),
    password varchar(10),
)


table_details(
   id int primary key,
   user_id int, //fk of table_users.id
   //more fields here
)

table_ot(
       id int primary key,
       user_id int, //fk of table_users.id
       //more fields here
    )

我计划在table_details和table_ot中使用user_id。在蛋糕烘焙生成的模型中，table_details加入table_users，table_ot加入table_users。

但table_details不会加入table_ot。这是table_details和table_ot的内容。

   $this->belongsTo('table_users', [
        'foreignKey' => 'user_id',
        'joinType' => 'INNER'
    ]);

我在控制器里也试过这个，还是不能用。

   $Overtime = $this->table_ot->find()->all(array('joins' => 
        array(
            'table' => 'table_table_details',
            'alias' => 'table_table_details',
            'type' => 'full',
            'foreignKey' => false,
            'conditions'=> array('table_ot.user_id = table_table_details.user_id')
        )
    )); 

任何建议..请帮帮忙

Answer 1

正如您在问题中指出的，您已经设置了表关联。所以你可以像这样写你的查询：

$this->table_ot->find("all",[
    "contain" => [
        "table_users" => ["table_details"]
    ]
]);

例如，在使用toArray()执行此查询后，您可以像这样访问与table_ot关联的table_details记录：

$detailId = $results[0]->table_users->table_details->id;

作为另一种选择，我建议您尝试连接这两个表，如下所示：

//in initialize() method of your ot_table:
$this->hasOne("table_details")
    ->setForeignKey("user_id")
    ->setBindingKey("user_id");

此处列出了每种关联类型的所有可用选项：https://book.cakephp.org/3.0/en/orm/associations.html

Answer 2

You have to add another field in table_ot to join with table_details according to cake convention. Because you have a foreign just to join with user table.

table_ot(
       id int primary key,
       user_id int, //fk of table_users.id
       details_id int, //fk of table_details.id
       //more fields here
    )
Then add this code in table of table_ot
$this->belongsTo('table_details', [
        'foreignKey' => 'details_id',
        'joinType' => 'INNER'
    ]);