Question

我在数据库中有一个user_addresses表来存储用户的地址。由于用户可以存储多个地址，但只有一个地址为Primary of Default Address。要将地址设置为Primary Address，表格的列default_flag为1 if primary else 0 for non primary。

现在，因为用户只能拥有一个主要地址，以后可以随时更改。为此，我列出了default_flag != 1的所有地址以及旁边的按钮，将其设置为primary address。当用户点击该按钮时，地址设置为主要地址，之前的主要地址default_flag设置为0。

我试过这样做。

我创建了一个postButton，其中两个键传递给updatePrimaryAddress动作，一个是要设置为主要地址的id，另一个是已经是主要地址的id。 / p>

<?= $this->Form->postButton(__('Choose'), ['controller' => 'UserAddresses', 'action' => 'updatePrimaryAddress', $nonPrimaryAddress->id, $primaryAddressId], ['class' => 'btn btn-success pull-left']) ?>

在UserAddressesController

<?php
namespace App\Controller;

use App\Controller\AppController;
use Cake\ORM\TableRegistry;

/**
 * UserAddresses Controller
 *
 * @property \App\Model\Table\UserAddressesTable $UserAddresses
 */
class UserAddressesController extends AppController
{
    public function updatePrimaryAddress($id = null, $primaryAddress = null)
    {
      $userAddresses = TableRegistry::get('UserAddresses');
      $primaryAddress = $userAddresses->get($primaryAddress);
      $primaryAddress->default_flag = 0;
      $userAddresses->save($primaryAddress);
      $address = $userAddresses->get($id);
      $address->default_flag = 1;
      $userAddresses->save($address);

      return $this->redirect($this->referer());
    }
}

点击按钮，页面重新加载，但数据库中没有数据更改。

Answer 1

为什么在甚至没有阅读动作中的数据时使用postButton？

您可以使用简单的链接：

$this->Html->link(__('Choose'), [
    'controller' => 'UserAddresses', 
    'action' => 'updatePrimaryAddress', 
    $nonPrimaryAddress->id, // you don't need this
    $primaryAddressId
], 
['class' => 'btn btn-success pull-left']
);

但是您甚至不需要像在数据库中那样发送有关旧地址的信息。

public function updatePrimaryAddress($address_id)
{
    // I suppose you have authenticated you user 
    // so let's retrieve his id

    $user_id = $this->Auth->User('id')

    // now I set the address as default 
    // but only if it belongs to that user
    $rows_affected = $this->userAddresses->UpdateAll(
        ['default_flag' => 1], 
        [
           'user_id' => $user_id,
           'id' => $address_id
        ]);

    // now I set all the other addresses as not default
    // but only if I have successfully changed the default address
    // and just for that one user
    if($rows_affected > 0)
    {
        $this->userAddresses->UpdateAll(
        ['default_flag' => 0], 
        [
           'user_id' => $user_id,
           'id !=' => $address_id
        ]);
    }
    else
    {
        $this->Flash->warning("Seems you're trying to switch to a non existing address or to change other's user address");
    }
    return $this->redirect($this->referer());
}

CakePHP 3：更新数据库中没有格式

1 个答案: