Sylius覆盖产品完整性约束违规

Question

我正在尝试覆盖产品捆绑包，但成功完成，但是在尝试删除将产品作为子产品的父实体时遇到错误

这是映射文件product.orm.xml

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
                  xmlns:gedmo="http://gediminasm.org/schemas/orm/doctrine-extensions-mapping">

    <mapped-superclass name="Sylius\Component\Product\Model\Product" table="sylius_product">
        <id name="id" column="id" type="integer">
            <generator strategy="AUTO" />
        </id>

        <field name="name" column="name" type="string">
            <gedmo:versioned />
        </field>
        ...
    </mapped-superclass>

</doctrine-mapping>

这是我的product.orm.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                                      http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
    <entity name="WeShop\Bundle\CoreBundle\Entity\Product" table="sylius_product">
        <many-to-one field="boutique" target-entity="WeShop\Bundle\BoutiqueBundle\Entity\Boutique" inversed-by="produits">
            <join-column name="boutique_id" referenced-column-name="id" nullable="true" onDelete="SET NULL" />
        </many-to-one>
    </entity>
</doctrine-mapping>

在WeShop \\ Bundle \\ BoutiqueBundle \\ Entity \\ Boutique中，我确实有

<?php
namespace WeShop\Bundle\BoutiqueBundle\Entity;
use Sylius\Component\Core\Model\ProductInterface as ProductInterface;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;

class Boutique
{
    private $produits;

    public function __construct(){
        $this->produits = new ArrayCollection();
    }

    public function getProduits(){
        return $this->produits;
    }

    public function setProduits(ProductInterface $produit){
        $this->produits[] = $produit;
        return $this;
    }

}

在WeShop \\ Bundle \\ CoreBundle \\ Entity \\ Product中，我确实有这个

<?php

namespace WeShop\Bundle\CoreBundle\Entity;
use WeShop\Bundle\CoreBundle\Model;
use WeShop\Bundle\BoutiqueBundle\Entity\BoutiqueInterface as BoutiqueInterface;
use Sylius\Component\Core\Model\Product as BaseProduct;

class Product extends BaseProduct
{
    private $boutique;

    public function getBoutique()
    {
        return $this->boutique;
    }

    public function setBoutique(BoutiqueInterface $boutique = null)
    {
        $this->boutique = $boutique;

        return $this;
    }
}

与精品实体（商店）合作，我可以按照我希望一切正常的方式进行操作，现在的问题是当我尝试删除它时

An exception occurred while executing 'DELETE FROM weshop_boutique WHERE id = ?' with params [2]:

SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`sylius_dev`.`sylius_product`, CONSTRAINT `FK_677B9B74AB677BE6` FOREIGN KEY (`boutique_id`) REFERENCES `weshop_boutique` (`id`))

请注意，一家精品店（商店）可以有多个产品，但是一个产品只能是一个精品店（商店）的子产品

我确实有一个具有相同逻辑的文档包，并且当我尝试删除精品店时（知道表sylius_product中没有引用精品店{null}的行），文档被删除了

这是我的文档orm xml文件

<?xml version="1.0" encoding="utf-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
  <entity table="weshop_documents" repository-class="WeShop\Bundle\DocumentsBundle\Entity\DocumentsRepository" name="WeShop\Bundle\DocumentsBundle\Entity\Documents">
    <id name="id" type="integer" column="id">
      <generator strategy="AUTO"/>
    </id>
    <field name="intitule" type="string" column="intitule" length="255"/>
    <field name="url" type="string" column="url" length="255"/>
    <many-to-one field="boutique" target-entity="WeShop\Bundle\BoutiqueBundle\Entity\Boutique" inversed-by="documents">
      <join-column name="boutique_id" referenced-column-name="id" nullable="false" />
    </many-to-one>
  </entity>
</doctrine-mapping>

先感谢您

Answer 1

Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`sylius_dev`.`sylius_product`, CONSTRAINT `FK_677B9B74AB677BE6` FOREIGN KEY (`boutique_id`) REFERENCES `weshop_boutique` (`id`))如果我理解现在，这是针对此错误的解决方案。

1. 您在sylius_product <=> weshop_boutique之间有关系。 因此，当您创建产品时， weshop_boutique id weshop_boutique到sylius_product表。

2. 所以，当你想删除的东西weship_boutique这与关系sylius_product那么首先你要删除产品sylius_product这与关系weship_boutique后，它会正常工作。

3. 例如

     => you have one field in "weship_boutique" table where "id = 1". => you have one field in "sylius_product" table where "boutique_id = 1". => so when you would like to delete field from "weship_boutique" table where "id = 1" at the same time "sylius_product" need it because you have foreign key relation between (boutique_id) of table sylius_product and (id) of table "weship_boutique". 

因此，首先从sylius_product中删除产品（标识为weship_boutique），然后尝试从weship_boutique中删除字段。