原则 2：拯救复杂关系中的实体
我的学说实体中有以下关系：
FavoriteRecipe
/**
* @ManyToOne(targetEntity="User", inversedBy="favoriteRecipes")
*/
private $user;
/**
* @ManyToOne(targetEntity="Recipe", inversedBy="favoriteRecipes")
*/
private $recipe;
Recipe
/**
* @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
*/
private $favoriteRecipes;
User
/**
* @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
*/
private $favoriteRecipes;
在我的一个控制器中，我有以下代码：
$favoriteRecipe = new \Entities\FavoriteRecipe();
$favoriteRecipe->setRecipe($recipe);
$favoriteRecipe->setUser($user);
$this->_em->persist($favoriteRecipe);
$this->_em->flush();
但这会引发异常并显示以下消息：
通过未配置的关系找到了新实体 级联持久化操作： 实体\用户@00000000408bd010000000007cb1380e。明确坚持 新实体或配置级联持久化操作 关系。
如何正确创建并保存 FavouriteRecipe 实体？
I have the following relationships within my doctrine entities:
FavoriteRecipe
/**
* @ManyToOne(targetEntity="User", inversedBy="favoriteRecipes")
*/
private $user;
/**
* @ManyToOne(targetEntity="Recipe", inversedBy="favoriteRecipes")
*/
private $recipe;
Recipe
/**
* @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
*/
private $favoriteRecipes;
User
/**
* @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
*/
private $favoriteRecipes;
In one of my controllers I have the following code:
$favoriteRecipe = new \Entities\FavoriteRecipe();
$favoriteRecipe->setRecipe($recipe);
$favoriteRecipe->setUser($user);
$this->_em->persist($favoriteRecipe);
$this->_em->flush();
But this throws an exception with the following message:
A new entity was found through a relationship that was not configured
to cascade persist operations:
Entities\User@00000000408bd010000000007cb1380e. Explicitly persist the
new entity or configure cascading persist operations on the
relationship.
How can I correctly create and save a FavoriteRecipe entity?
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您是否为所有关系实体设置了级联选项？这是通过设置级联属性来完成的，例如：cascade={"persist", "remove"}
也许这个页面：https://www.doctrine-project.org/projects/doctrine-orm/en/2.9/reference/working-with-associations.html
Did you set the cascade option for all your relational entities? This is done by setting the cascade property for example: cascade={"persist", "remove"}
Maybe this page:https://www.doctrine-project.org/projects/doctrine-orm/en/2.9/reference/working-with-associations.html