Question

I'm trying to save an Order entity, but patchEntity always set two fields that are foreign keys to null.

Orders are associated to Addresses with 2 associations (Delivery and Invoice).

Associated addresses already exists, so I just want to save address id as a foreign key into Orders table.

OrdersTable

namespace OrderManager\Model\Table;
use Cake\ORM\Query;
use Cake\ORM\RulesChecker;
use Cake\ORM\Table;
use Cake\Validation\Validator;
use OrderManager\Model\Entity\Order;

/**
 * Orders Model
 */
class OrdersTable extends Table {

/**
 * Initialize method
 *
 * @param array $config The configuration for the Table.
 * @return void
 */
public function initialize(array $config) {
    $this->table('orders');
    $this->displayField('id');
    $this->primaryKey('id');
    $this->addBehavior('Timestamp');

    $this->belongsTo('Contacts', [
        'foreignKey' => 'contact_id',
        'joinType' => 'INNER',
        'className' => 'ContactManager.Contacts'
    ]);

    // ... 

    $this->belongsTo('DeliveryAddresses', [
        'foreignKey' => 'delivery_address',
        'className' => 'ContactManager.Addresses'
    ]);

    $this->belongsTo('InvoiceAddresses', [
        'foreignKey' => 'invoice_address',
        'className' => 'ContactManager.Addresses'
    ]);
}

public function validationDefault(Validator $validator) {

    // ...

    $validator
            ->add('delivery_address', 'valid', ['rule' => 'numeric'])
            ->allowEmpty('delivery_address');

    $validator
            ->add('invoice_address', 'valid', ['rule' => 'numeric'])
            ->allowEmpty('invoice_address');

    // ...
}

Controller

$data = [
    // ...
    'contact_id' => 34,
    'delivery_address' => 8,
    'invoice_address' => 8,
    'currency' => 'Euro',
    'total_paid' => '100.00',
    'shipping_number' => ''
    // ...
];

$entity = $this->Orders->newEntity();
$entity = $this->Orders->patchEntity($entity, $data);
debug($entity);

debug($entity) always tells me :

'delivery_address' => null,

'invoice_address' => null,

When I remove the belongsTo associations (DeliveryAddresses and InvoiceAddresses), my fields get the numeric value (8). But I need these associations.

How can I keep these associations and save numeric values for the foreign keys ?

Answer 1

外键名称与关联属性名称（存储关联数据的位置）冲突，默认情况下是从关联名称派生的，如果是belongsTo，则为＃＆＃ 39; s关联名称的单数下划线变体，即delivery_address和invoice_address。

参见 Cookbook > Database Access & ORM > Associations > BelongsTo Associations

要解决此问题，请遵守约定并将_id附加到外键，即delivery_address_id和invoice_address_id，或使用propertyName选项更改属性名称

$this->belongsTo('DeliveryAddresses', [
    'propertyName' => 'delivery_address_data',
    //...
]);

$this->belongsTo('InvoiceAddresses', [
    'propertyName' => 'invoice_address_data',
    //...
]);

除非您使用旧版数据库，否则我强烈建议您选择以前的解决方案，并使您的外键符合约定！

CakePHP 3.X - patchEntity failed to set foreign key

1 个答案: