CakePHP - 保存 HABTM

Posted 2023-04-12

【中文标题】CakePHP - 保存 HABTM

【英文标题】：CakePHP - Saving HABTM

【发布时间】：2014-02-10 01:11:47

【问题描述】：

// Models/Tables with HABTM:
companies, sectors, companies_sectors

// Controller
$sectors = $this->Sector->find('list', array('fields'=>array('Sector.id', 'Sector.sector')));

// View
echo $this->Form->input('Sector.id', array(
    'multiple' => 'checkbox',
    'options' => $sectors,
));

// Posted 
$this->request->data = array(
'Company' => array(
    'id' => '177',
    'company_name' => 'Testing Co',
),
'Sector' => array(
    'id' => array(
        (int) 0 => '2',
        (int) 1 => '3'
    )
));

// Controller
if ($this->request->is('post')) 

    // This saves the data into the 'companies' table just fine - but that's it
    $this->Company->save($this->request->data);
    
    // Tried this
    $this->Company->Sector->save($this->request->data);
    
    /* Get this error
     Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Array' in 'field list'
     SQL Query: UPDATE `h_dev`.`sectors` SET `id` = Array WHERE `h_dev`.`sectors`.`id` = '2' 
    */
    
    // Tried this - does nothing
    foreach ($this->request->data['Sector']['id'] as $id)
    
        // made sure $this->Company->id is set from previous save()
        $this->Company->Sector->create();
        $this->Company->Sector->save(array('company_id'=>$this->Company->id, 'sector_id'=>$id));
    

如何将此请求->数据正确保存到所有 HABTM 表中？

【问题讨论】：

官方文档中的如下链接你看过了吗：book.cakephp.org/2.0/en/models/…

是的，挑战在于保存一组 id。 'Sector' => array( 'id' => array( (int) 0 => '2', (int) 1 => '3' ) )

【参考方案1】：

试试这个方法保存数据 $this->Model->saveAssociated($data); CakePHP Model saveAssociated

【讨论】：

saveAssociated() 方法对我不起作用。同样，它不喜欢 ID 数组。对我有用的是循环遍历 ID 数组并重建要关联的数组，然后在该新数组上执行 saveAll()。我认为有更好的方法来做到这一点 - 更多 CakePHPish，我只是不知道那是怎么回事。

【参考方案2】：

您的模型中的关系设置是否正确？您需要确保在Company 和Sectors 中都有HABTM。还要确保您的 HABTM 数据库表名称正确：companies_sectors