CakePHP 3.0 关联在实际干净时被标记为脏

Question

我正在尝试 Update/Save 可以关联许多地址 (TradingPartnerAddresses) 的 TradingPartner 实体（客户和供应商）。

我有一组更改的 TradingPartners，我正在使用 Cake 的 patchEntities() 函数将现有记录与修改后的记录合并。

问题是 Cake 错误地将相关地址标记为脏地址，当循环遍历实体以保存它们时，它会尝试重新插入现有地址 - 导致重复地址。

代码如下：

贸易伙伴控制器

//Load the trading partners model
$tradingPartners = TableRegistry::get('TradingPartners');

//find all existing trading partners and their associated addresses
$currentTradingPartners = $tradingPartners->find('all')
                                     ->contain(['TradingPartnerAddresses']);

//Patch trading partner changes
//Cake automagically handles 1 level of associations
$patchedTpEntities = $tradingPartners->patchEntities($currentTradingPartners, $partners);

//loop through and save all dirty fields
foreach ($patchedTpEntities as $tpEntity) {
   if ($tradingPartners->save($tpEntity)) {
   } else {
      //TODO
   }
}

贸易伙伴Table

public function initialize(array $config) {
    $this->primaryKey('partner_code');

    $this->hasMany('TradingPartnerAddresses', [
        'foreignKey' => 'partner_code'
    ]);
}

贸易伙伴地址Table

public function initialize(array $config) {
    $this->entityClass('App\Model\Entity\TradingPartnerAddress');
    $this->belongsTo('TradingPartners', [
        'foreignKey' => 'partner_code'
    ]);
}

调试（$patchedEtentites）；

(int) 0 => object(App\Model\Entity\TradingPartner) {

    .....

    'trading_partner_addresses' => [],
    '[new]' => false,
    '[accessible]' => [
        '*' => true
    ],
    '[dirty]' => [
        'trading_partner_addresses' => true
    ],
    '[original]' => [],
    '[virtual]' => [],
    '[errors]' => [],
    '[repository]' => 'TradingPartners'

知道为什么 trading_partner_addresses 在实际上是干净的时候却被标记为脏的吗？

Answer 1

当你用一些数据修补实体时，它会自动标记为脏

$tradingPartners->patchEntities($currentTradingPartners, $partners);

这意味着您正在使用 $partners 数据更新 $currentTradingPartners，因此 $currentTradingPartners 被修改并标记为脏。

如果你想要原始数据，你可以在你的实体属性上使用 getOriginal 方法，你也可以使用 clean 方法删除脏标志。

如果您在修补具有关联的实体时遇到问题，您必须在 patchEntity 中传递一组选项：

$article = $articles->get(1);
$articles->patchEntity($article, $this->request->data(), [
  'associated' => ['Tags', 'Comments.Users']
]);

CakePHP 3.0 关联在实际干净时被标记为脏

CakePHP 3.0 association being marked as dirty when it's actually clean

model-view-controller

cakephp

saving-data

cakephp-3.0