如何订购OneToMany / ManyToOne [英] How to OrderBy on OneToMany/ManyToOne
问题描述
我有一个产品类,在ManyToMany上有很多领域,例如成分,大小,种类等。总共约14个不同的领域
并不是所有的领域都与每个产品相关
I have a Product class that has many fields on it for ManyToMany, such as ingredients, sizes, species, etc.. A total of about 14 different fields Not all of the fields are are relevant to each product.
我有这样的映射设置
Class product {
/**
* @var Species[]
* @ORM\ManyToMany(targetEntity="Species")
* @ORM\JoinTable(name="product_species",
* joinColumns={@ORM\JoinColumn(name="productId", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="speciesId", referencedColumnName="id")}
* )
* @ORM\OrderBy({"name" = "asc"})
*/
private $species;
这对于manytomany / manyto一个非常有用。
This works great for a manytomany/manyto one.
问题出在我的product_ingredients表中,我需要添加一个附加字段,这意味着需要从ManyToMany切换到OneToMany / ManyToOne
所以像这样
The problem is in my product_ingredients table I needed to add an additional field, meaning need to switch from ManyToMany to a OneToMany/ManyToOne So like this
/**
* @var ProductIngredient[]
*
* @ORM\OneToMany(targetEntity="ProductIngredient", mappedBy="product")
* @ORM\JoinColumn(name="productId", referencedColumnName="id")
*/
private $ingredients;
现在我的ProductIngredient实体看起来像这样
Now my ProductIngredient Entity Looks like this
/**
* @var IngredientType
* @ORM\ManyToOne(targetEntity="IngredientType", fetch="EAGER")
* @ORM\JoinColumn(name="ingredientTypeId", referencedColumnName="id")
*/
private $ingredientType;
/**
* @var Ingredient
*
* @ORM\ManyToOne(targetEntity="Ingredient", inversedBy="products", fetch="EAGER")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="ingredientId", referencedColumnName="id")
* })
*/
private $ingredient;
/**
* @var Product
*
* @ORM\ManyToOne(targetEntity="Product", inversedBy="ingredients")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="productId", referencedColumnName="id")
* })
*/
private $product;
所以在我的产品类中,我使用@ ORM\OrderBy,以便物种已经订购有没有办法我也可以为我的配料领域做这个?
So in my product class for species I use the @ORM\OrderBy so that species is already ordered.. Is there a way I can somehow also do this for my ingredients field?
或者我做错了我的逻辑,这些甚至不应该是产品类上的字段,而应该只是通过存储库查找?
Or am I doing my logic wrong and these shouldn't even be fields on the product class and should just be looking up by the repository instead?
我想要它很容易,所以我可以循环通过我的对象,如$ $ $ $ $ $ product-> getIngredients()
而不是做
I was wanting it to be easy so I could loop through my objects like $product->getIngredients()
instead of doing
$ingredients = $this->getDoctrine()->getRepository('ProductIngredient')->findByProduct($product->getId());
推荐答案
在产品实体中也只是添加订单成分关系
in the Product entity just also aadd the orderBy to the ingredients relation
/**
* ...
* @ORM\OrderBy({"some_attribute" = "ASC", "another_attribute" = "DESC"})
*/
private $ingredients;
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