增量最后插入值CakePHP

我需要为列生成唯一的值。我想增加表中最后插入的值

我试过了，但是没有用

if($this->request->is('post')){
    $code = $this->Department->find('first', array(
        'fields' => 'Department.code',
        'order'  => 'Department.code DESC'
    ));
    $code += 1;
    $this->data['Department']['code'] = $code;
    if($this->Department->save($this->request->data)){
        $this->Session->setFlash('New department added.');
        $this->redirect(array('action' => 'add'));
    }
}

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谢谢

您正在保存$this->request->data但您将数据放入$this->data中

试试这个：

if($this->request->is('post')){
    $code = $this->Department->find('first', array('fields' => 'Department.code','order' => 'Department.code DESC'));
    $code += 1;
    $this->request->data['Department']['code'] = $code;
    if($this->Department->save($this->request->data)){
        $this->Session->setFlash('New department added.');
        $this->redirect(array('action' => 'add'));
    }
}

---

$id=$this->User->getLastInsertId（）

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通过此函数，您将获得最后一个插入的id，现在增加它的值并在您想要使用的地方使用它，或者增加此id并将其保存在数据库中

您也可以使用atomic updateAll（）在单个快速查询中完成所有操作-请参阅。