原则 2:保存复杂关系中的实体

I have the following relationships within my doctrine entities:

最喜欢的食谱

/**
 * @ManyToOne(targetEntity="User", inversedBy="favoriteRecipes")
 */
private $user;

/**
 * @ManyToOne(targetEntity="Recipe", inversedBy="favoriteRecipes")
 */
private $recipe;

食谱

/**
 * @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
 */
private $favoriteRecipes;

用户

/**
 * @OneToMany(targetEntity="FavoriteRecipe", mappedBy="user")
 */
private $favoriteRecipes;

在我的一个控制器中，我有以下代码:

$favoriteRecipe = new EntitiesFavoriteRecipe();
$favoriteRecipe->setRecipe($recipe);
$favoriteRecipe->setUser($user);
$this->_em->persist($favoriteRecipe);
$this->_em->flush();