Sylius，添加/删除/更新相关产品

问题描述：

我试图添加关联产品或将其替换（如果存在）。下面是我使用的代码：Sylius，添加/删除/更新相关产品

/** @var ProductAssociationInterface $association */ 
$association = $this->associationFactory->createNew(); 
/** @var ProductAssociationTypeInterface $associationType */ 
$associationType = $this->associationTypeRepository->findOneBy(['code' => 'similar_products']); 
$association->setType($associationType); 
if ($similar_product = $this->productRepository->findOneByCode(trim($row['Similar product']), $this->locale)) { 
    if (!$association->hasAssociatedProduct($similar_product)) { 
     $association->addAssociatedProduct($similar_product); 
    } 

    if (!$product->hasAssociation($association)) { 
     $product->addAssociation($association); 
     $this->associationManager->persist($product); 

     if (!$this->associationRepository->findOneBy(array('owner' => $similar_product->getId(), 'type' => $associationType->getId()))) { 
      $this->associationRepository->add($association); 
     } 
    }; 
}

，但如果没有相关的产品，而它的工作的伟大 - 如果有，或者即使是相同的产品 - 它抛出一个重复输入错误在“product_association_idx”表我无法确定为什么或如何设置检查以查看此产品是否已关联。

任何帮助将不胜感激，谢谢

你能告诉我们什么是在'hasAssociatedProduct'方法？ '$ association-> hasAssociatedProduct（$ similar_product）' –

https://github.com/Sylius/Sylius/blob/master/src/Sylius/Component/Product/Model/ProductAssociation.php public function hasAssociatedProduct（ProductInterface $ product ）：bool { return $ this-> associatedProducts-> contains（$ product）; } – STL

如果您在添加与已关联的第二个产品相同的第二个产品时转储了它，它会返回false吗？ –

答

ok了，想通了自己

/** @var ProductAssociationInterface $association */ 
$association = $this->associationFactory->createNew(); 
/** @var ProductAssociationTypeInterface $associationType */ 
$associationType = $this->associationTypeRepository->findOneBy(['code' => 'similar_products']); 
$association->setType($associationType); 
if ($similar_product = $this->productRepository->findOneByCode(trim($row['Similar product']), $this->locale)) { 
    $flag = true; 
    foreach($product->getAssociations() as $productAssociation) { 
     if ($productAssociation->hasAssociatedProduct($similar_product)) { 
      $flag = false; 
     } 
    } 

    if ($flag) { 
     $association->addAssociatedProduct($similar_product); 
     $product->addAssociation($association); 
     $this->associationManager->persist($product); 

     if (!$this->associationRepository->findOneBy(array('owner' => $similar_product->getId(), 'type' => $associationType->getId()))) { 
      $this->associationRepository->add($association); 
     } 
    }; 
}

Sylius，添加/删除/更新相关产品

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