oneToMany 关系实体不保存 id 字段 [英] oneToMany relation entity does not save id field

问题描述

我正在尝试使用 奏鸣曲管理

实际上，我希望像 sonata media bundle 与 gallery > 那样有 manyToMany 关系.媒体

Actually I'd like to have manyToMany relation like sonata media bundle has with gallery > media

一个 HomePage 有很多 Story 应该是可排序的等等.
还有 HomePageStory 来管理关系，如下所示:
https://github.com/sonata-project/SonataAdminBundle/issues/1231

A HomePage has many Storys which should be sortable etc.
Theres also HomePageStory to manage the relation, as suggested here:
https://github.com/sonata-project/SonataAdminBundle/issues/1231

HomePage.orm.yml

    oneToMany:
        HomePageStorys:
            targetEntity: HomePageStory
            mappedBy: HomePage
            cascade: ["persist", "merge", "remove"]

HomePageAdmin.php

       ->add(
          'HomePageStorys',
          'sonata_type_collection',
          array(
              'cascade_validation' => true,
          ),
          array(
              'edit' => 'inline',
              'inline' => 'table',
              'sortable' => 'position'
          )
      );

HomePageStory.orm.yml

    manyToOne:
        HomePage:
            targetEntity: HomePage
            joinColumn:
                name: homepage_id
                referencedColumnName: id

        Story:
            targetEntity: Story
            joinColumn:
                name: story_id
                referencedColumnName: id

HomePageStoryAdmin

    protected function configureFormFields(FormMapper $formMapper)
    {
        $link_parameters = array();

        if ($this->hasParentFieldDescription()) {
            $link_parameters = $this->getParentFieldDescription()->getOption('link_parameters', array());
        }

        if ($this->hasRequest()) {
            $context = $this->getRequest()->get('context', null);

            if (null !== $context) {
                $link_parameters['context'] = $context;
            }
        }

        $formMapper
          ->add(
              'Story',
              'sonata_type_model_list',
              array('required' => false),
              array(
                  'link_parameters' => $link_parameters
              )
          )
          ->add('position', 'hidden');
    }

到目前为止效果很好，因为我可以在 HomePage Admin 上添加 HomePageStories 并从内联列表中选择一个故事.

This works fine so far, as i can add HomePageStories on the HomePage Admin and pick a Story from the list inline.

但是它只是将story_id 存储在数据库中，而homepage_id 保持为空.如果我手动设置 homepage_id，它会显示在主页管理中.

But it just stores the story_id in the database while homepage_id stays empty. If I set the homepage_id by hand, it's displayed in the homepage admin.

知道我需要做什么才能在保存时存储父实体 (HomePage) 的 id 吗?

Any clue what I need to do to store the id of the parent entity (HomePage) on save?

推荐答案

hm，好像你必须手动设置相关子项上的父实体...

hm, seems as if you manually have to set the parent entity on the related children...

虽然不确定是否真的有必要或官方方式"，但以下方法奏效了:

While not sure if it is really necessary or "the official way", the following did the trick:

HomePageAdmin.php

public function prePersist($homepage)
{
    foreach ($homepage->getHomePageStorys() as $homepagestory) {
        $homepagestory->setHomePage($homepage);
    }
}

/**
 * {@inheritdoc}
 */
public function preUpdate($homepage)
{
    foreach ($homepage->getHomePageStorys() as $homepagestory) {
        $homepagestory->setHomePage($homepage);
    }
}

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