Question

当我运行symfony命令加载灯具时

我有错误

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'topic_id' cannot be null

也许它因为表格标签中的coloumn topic_id与表格主题coloumn topic_id有关系manyToMany

我的装置

<?php
class LoadTopicContentData extends AbstractFixture implements OrderedFixtureInterface
{
    public function getOrder()
    {
        return 1; // the order in which fixtures will be loaded
    }

    public function load(ObjectManager $manager)
    {
        $contentTopic1 = new TopicContent();
        $contentTopic1->setTopicId(1);



        $manager->flush();
    }


}

我的实体

<?php

namespace Application\ClubBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * TopicContent
 */
class TopicContent
{

    /**
     * Set topic_id
     *
     */
    public function setTopicId($topicId)
    {
        $this->topic_id = $topicId;

        return $this;
    }

Answer 1

public function load(ObjectManager $manager)
{
    $contentTopic1 = new TopicContent();
    $contentTopic1->setTopicId(1);
    $manager->persist($contentTopic1);
    $manager->flush();
}

您必须在调用flush之前保留该对象（阅读doctrine文档以获取更多信息）。

Answer 2

我找到了解决方案。必须在加载夹具之前添加合并引用。

$contentTopic1->setTopic( $manager->merge($this->getReference('topic1')));

和

$this->addReference('topic1', $topic1);

主夹具中的

加载夹具symfony2上的错误

2 个答案: