Question

我在模型，Table1和Table2上有2个表表1上的专栏

ID | Content1

表2上的专栏

ID | table1_id | Content2

我想在Table2上的Table1中显示内容，如何加入列？

感谢提前！

Answer 1

Model\Model1.php

<?php
App::uses('AppModel', 'Model');

class Model1 extends AppModel {

    public $useTable = 'table1';

}

Model\Model2.php

<?php
App::uses('AppModel', 'Model');

class Model2 extends AppModel {

    public $useTable = 'table2';

    public $belongsTo = array(
        'Model1' => array(
            'className' => 'Model1',
            'foreignKey' => 'table1_id'
        )
    );

}

在控制器中：

$data = $this->Model2->find('all');

生成的查询将是

SELECT `Model2`.`id`, `Model2`.`table1_id`, `Model2`.`content2`, `Model1`.`id`, `Model1`.`content1` FROM `db`.`table2` AS `Model2` LEFT JOIN `cake244`.`table1` AS `Model1` ON (`Model2`.`table1_id` = `Model1`.`id`) WHERE 1 = 1

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1 个答案: