CakePHP 3.3从连接表中获取两列

时间:2016-09-22 08:46:18

标签: php mysql cakephp cakephp-3.0

我是CakePHP的新手,当我试图绕着桌子工作时,我遇到了从两个表中获取特定colmns的问题。我想要实现的是:

SELECT categories_1.category_id,categories_2.name FROM categories_1 JOIN categories_2 ON categories_2.category_id = categories_1.category_id

我知道我能做到:

$query=$this->Categories1->find('all')->contain(['Categories2'])

然而这种方式我得到整个表categoires_2作为内部数组,这使得结构更复杂,并从第二个表添加不必要的列。

我尝试按照文档进行操作,但我提出的代码并没有真正起作用:

 $query=$this->Categories1->find('all')
                            ->select('Categories2.name','Categories1.category_id')
                            ->join([
                                    'table' => 'categories_2',
                                    'alias' => 'Categories2',
                                    'conditions' => array('Categories2.category_id' => 'Categories1.category_id')     
                            ]); 

我很感激帮助纠正代码...... 感谢

编辑: 蛋糕正在生成以下sql代码:

SELECT Categories2.name AS `Categories2__name` FROM categories_1 Categories1 INNER JOIN categories_2 Categories2 ON Categories2.category_id = :c0

1 个答案:

答案 0 :(得分:2)

您可以指定要返回的字段

$query=$this->Categories1->find('all')->contain(
                                 ['Categories2' => [
                                  'fields' => ['field1', 'field2']   
                                     ]
                                 ]
                           )