Question

在我的pages实体中，我通过“ ManyToOne”添加了图标：

/**
 * @ORM\ManyToOne(targetEntity="App\Entity\Icons", inversedBy="pages")
 * @ORM\JoinColumn(nullable=false)
 */
private $icon;


  public function getIcon(): ?Icons
{
    return $this->icon;
}

public function setIcon(?Icons $icon): self
{
    $this->icon = $icon;
    return $this;
}

但是我对此有疑问，我收到一条错误消息：

执行“ SELECT t0.id AS id_1”时发生异常，   t0.unique_id AS unique_id_2，t0.name AS name_3，t0.template AS   template_4，t0.slug AS slug_5，t0.icon_id AS icon_id_6来自页面t0   在哪里t0.slug =？带有参数[[页面]]的LIMIT 1'：

SQLSTATE [42S22]：找不到列：1054中的未知列't0.icon_id'   “字段列表”

Answer 1

Doctrine将在[relationed_one]_id表上搜索名为relation_many的列。如果Icon和Page的关系是由页面表上的icon_id的另一个外键建立的，则可以用@JoinColumn(name="another_foreign_id", referencedColumnName="another_primary_id")

表示

https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/reference/association-mapping.html#one-to-many-bidirectional

如何将两个实体与ManyToOne相关联？

1 个答案: