从 ProductDefinition 添加关联

Question

我有一个基本的

customAttributes

实体，有两个字段：

attributeName

和

attributeValue

。目标是每当我在 Shopware 中检索产品时检索链接到

customAttributes

的

product

。

自定义属性定义.php

<?php

declare(strict_types=1);

namespace Meteor\OnboardingNielPlugin\Core\Content\CustomAttributes;

use Shopware\Core\Content\Product\ProductDefinition;
use Shopware\Core\Framework\DataAbstractionLayer\EntityDefinition;
use Shopware\Core\Framework\DataAbstractionLayer\Field\FkField;
use Shopware\Core\Framework\DataAbstractionLayer\Field\Flag\PrimaryKey;
use Shopware\Core\Framework\DataAbstractionLayer\Field\Flag\Required;
use Shopware\Core\Framework\DataAbstractionLayer\Field\IdField;
use Shopware\Core\Framework\DataAbstractionLayer\Field\ManyToOneAssociationField;
use Shopware\Core\Framework\DataAbstractionLayer\Field\StringField;
use Shopware\Core\Framework\DataAbstractionLayer\FieldCollection;
use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;

#[AutoconfigureTag('shopware.entity.definition', ['entity' => 'custom_attributes'])]
class CustomAttributesDefinition extends EntityDefinition
{
    public const ENTITY_NAME = 'custom_attributes';

    public function getEntityName(): string
    {
        return self::ENTITY_NAME;
    }

    public function getCollectionClass(): string
    {
        return CustomAttributesCollection::class;
    }

    public function getEntityClass(): string
    {
        return CustomAttributesEntity::class;
    }

    protected function defineFields(): FieldCollection
    {
        return new FieldCollection([
            (new IdField('id', 'id'))->addFlags(new Required(), new PrimaryKey()),
            new StringField('attribute_name', 'attributeName'),
            new StringField('attribute_value', 'attributeValue'),

            (new FkField('product_id', 'productId', ProductDefinition::class))->addFlags(new Required()),
            new ManyToOneAssociationField('customAttributes2', 'product_id', ProductDefinition::class, 'id', false),
        ]);
    }
}

如您所见，此定义与称为

customAttributes2

的产品相关联。预期的行为是通过添加关联来获取产品时检索

customAttributes

实体：

    public function onProductExportProductCriteria(ProductExportProductCriteriaEvent $event): void
    {
        $event->getCriteria()->addAssociation('customAttributes2');
    }

这不起作用。

我可以让它发挥作用的唯一方法是向核心中的

ProductDefinition

添加关联字段：

 (new OneToManyAssociationField('customAttributes', CustomAttributesDefinition::class, 'product_id'))->addFlags(new CascadeDelete()),

做

    public function onProductExportProductCriteria(ProductExportProductCriteriaEvent $event): void
    {
        $event->getCriteria()->addAssociation('customAttributes');
    }

现在检索

customAttribute

。但编辑核心是不好的做法，所以我需要另一种方法。实际上，Shopware 应该有一种方法可以扩展核心中的实体字段，而无需实际编辑核心本身？否则无法设置 FK 或对自定义表/实体的引用。

Answer 1

为此，Shopware 希望您定义一个实体扩展。 请参阅：https://developer.shopware.com/docs/guides/plugins/plugins/framework/data-handling/add-complex-data-to-existing-entities.html#creating-the-extension

基本上，您定义的服务与您的核心编辑完全相同：

在 services.xml 或类似文件中：

<services>
    <service id="Meteor\OnboardingNielPlugin\Extension\Content\Product\CustomExtension">
        <tag name="shopware.entity.extension"/>
    </service>
</services>

在 PHP 中：

<?php declare(strict_types=1);

namespace Meteor\OnboardingNielPlugin\Extension\Content\Product;

use Shopware\Core\Content\Product\ProductDefinition;
use Shopware\Core\Framework\DataAbstractionLayer\EntityExtension;
use Shopware\Core\Framework\DataAbstractionLayer\FieldCollection;
use Shopware\Core\Framework\DataAbstractionLayer\Field\OneToManyAssociationField;
use Meteor\OnboardingNielPlugin\Core\Content\CustomAttributes\CustomAttributesDefinition;

class CustomExtension extends EntityExtension
{
    public function extendFields(FieldCollection $collection): void
    {
        $collection->add(
            new OneToManyAssociationField('customAttributes', CustomAttributesDefinition::class, 'product_id'))
        );
    }

    public function getDefinitionClass(): string
    {
        return ProductDefinition::class;
    }
}

您可以将您的关联添加到标准中。