为具有许多关系的表构建表单

Question

我在构建表之间有很多关系的表单时遇到了问题。您可以在下面的图片中看到关系结构：

我在YML的关系：

######### Products.orm.yml #########

   type: entity
   table: products
   fields:
   ...
   lifecycleCallbacks: {  }
   oneToMany:
   productCombinations:
      targetEntity: ProductsCombinations
      mappedBy: product

######### ProductsCombinations.orm.yml #########

   type: entity
   table: products_combinations
   fields:
   ...
   lifecycleCallbacks: {  }
   oneToMany:
      productAttributes:
        targetEntity: ProductsAttributesJoin
        mappedBy: productCombinations
   manyToOne:
      product:
        targetEntity: Products
        inversedBy: productCombinations
        joinColumn:
          name: product_id
          referencedColumnName: id

######### ProductsAttributesJoin.orm.yml ########

type: entity
table: null
fields:
    combinationID:
        type: bigint
        column: combination_id
        id: true
        generator:
            strategy: NONE
    attributeID:
        type: bigint
        id: true
        generator:
            strategy: NONE
        column: attribute_id
lifecycleCallbacks: {  }
manyToOne:
    productCombinations:
      targetEntity: ProductsCombinations
      inversedBy: productAttributes
      joinColumn:
        name: combination_id
        referencedColumnName: combination_id
    attributes:
      targetEntity: Attributes
      inversedBy: productAttributesJoin
      joinColumn:
        name: attribute_id
        referencedColumnName: id

######### Attributes.orm.yml #########

   type: entity
   table: products_attributes
   fields:
   ...
   lifecycleCallbacks: {  }
   oneToMany:
      productAttributesJoin:
        targetEntity: ProductsAttributesJoin
        mappedBy: attributes
   manyToOne:
       productAttributesDefinitions:
         targetEntity: AttributesDefinitions
         inversedBy: productAttributes
         joinColumn:
           name: attribute_id
           referencedColumnName: id

######### AttributesDefinitions.orm.yml #########

   type: entity
   table: products_attributes_definitions
   fields:
   ...
   lifecycleCallbacks: {  }
   oneToMany:
      productAttributes:
        targetEntity: Attributes
        mappedBy: productAttributesDefinitions
   manyToOne:
       productAttributesDefinitions:
         targetEntity: AttributesDefinitions
         inversedBy: productAttributes
         joinColumn:
           name: attribute_id
           referencedColumnName: id

我所知道的是：

什么不起作用，当我点击Add new然后我得到了来自ProductsCombinations的字段的弹出窗口，但是当我填写它们并按Save然后它显示错误，product_id为null（但它应该从Products中取出）

我想做的事情也是这样的：

还有一些来自Admin目录的代码：

###### ProductsView.php ######

$formMapper->with('Attributes')
            ->add('productCombinations',  'sonata_type_collection')
        ->end()

###### ProductsCombinations.php ######

    $formMapper
        ->with('General')
            ->(some main fields from productCombinations)
            ->add('productAttributes', 'sonata_type_collection', array(), array(
            'edit' => 'inline',
            'inline' => 'table',
            'sortable'  => 'position'
        ))

###### ProductsAttributesJoin.php ######

    $formMapper
        ->with('General')
            ->add('attributes', 'sonata_type_model')
        ->end()
    ;

Answer 1

对于第一部分，在您Product实体中，您拥有addProductCombinations方法。这样做：

public function addProductCombinations($object)
{
    $this->productCombinations[] = $object;
    $object->setProduct($this); // This line is important.
}

这会让你感动。或者，您可以在管理员的prePersist / preUpdate操作中设置产品。

问题的第二部分有点不清楚。您是否希望拥有不同类型的属性，如文本/选择/多项选择？如果是这样，您将必须使用How to Dynamically Modify Forms Using Form Events动态修改表单。但是，嘿，也许你可以重用一些现有的包，比如packagist: assortment。