如何将两个实体与 ManyToOne 相关联？

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：

An exception occurred while executing 'SELECT t0.id AS id_1, 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 FROM pages t0 WHERE t0.slug = ? LIMIT 1' with params ["pages"]:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 't0.icon_id' in 'field list'

Answer 1

Doctrine 将在 relation_many table 上搜索名为 [relationed_one]_id 的列。如果图标和页面的关系是由 icon_id 在页面 table 上的另一个外键建立的，您可以用 @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？

How can I relate two entities with ManyToOne?

entity

doctrine

many-to-one

symfony