加载 Doctrine Fixtures 时由于实体中的 ArrayCollection 导致的错误

Question

我为两个相关实体创建了一个固定装置。尝试使用

加载固定装置时

php app/console doctrine:fixtures:load

我总是收到这个错误：

Fatal error: Class '[MyNamespace]\Entity\ArrayCollection' not found in [...]

它在我的实体中引用了这段代码：

public function __construct()
    {
        $this->products = new ArrayCollection();
    }

当我取消注释函数中的行时，所有数据库记录及其关系都会在我的数据库 (MySQL) 中正常创建。

这里出了什么问题，可以做些什么来解决这个问题？

TIA 马特

附加信息：

实体“提供者”

<?php

namespace VS\Journeyro\WebBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Provider
 */
class Provider
{
    /**
     * @var integer
     */
    private $id;

    /**
     * @var string
     */
    private $name;

    /**
     * @var string
     */
    private $slug;

    /**
     * @var string
     */
    private $url;

    /**
     * @var string
     */
    private $email;

    /**
     * @var string
     */
    private $phone;

    /**
     * @var string
     */
    private $image;

    /**
     * @var string
     */
    private $description;


    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     * @return Provider
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string 
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set slug
     *
     * @param string $slug
     * @return Provider
     */
    public function setSlug($slug)
    {
        $this->slug = $slug;

        return $this;
    }

    /**
     * Get slug
     *
     * @return string 
     */
    public function getSlug()
    {
        return $this->slug;
    }

    /**
     * Set url
     *
     * @param string $url
     * @return Provider
     */
    public function setUrl($url)
    {
        $this->url = $url;

        return $this;
    }

    /**
     * Get url
     *
     * @return string 
     */
    public function getUrl()
    {
        return $this->url;
    }

    /**
     * Set email
     *
     * @param string $email
     * @return Provider
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Get email
     *
     * @return string 
     */
    public function getEmail()
    {
        return $this->email;
    }

    /**
     * Set phone
     *
     * @param string $phone
     * @return Provider
     */
    public function setPhone($phone)
    {
        $this->phone = $phone;

        return $this;
    }

    /**
     * Get phone
     *
     * @return string 
     */
    public function getPhone()
    {
        return $this->phone;
    }

    /**
     * Set image
     *
     * @param string $image
     * @return Provider
     */
    public function setImage($image)
    {
        $this->image = $image;

        return $this;
    }

    /**
     * Get image
     *
     * @return string 
     */
    public function getImage()
    {
        return $this->image;
    }

    /**
     * Set description
     *
     * @param string $description
     * @return Provider
     */
    public function setDescription($description)
    {
        $this->description = $description;

        return $this;
    }

    /**
     * Get description
     *
     * @return string 
     */
    public function getDescription()
    {
        return $this->description;
    }

    public function __toString()
    {
        return $this->getName();
    }


    /**
     * Add collection of related products
     */
    protected $products;

    public function __construct()
    {
        $this->products = new ArrayCollection();
    }

    /**
     * Add products
     *
     * @param \VS\Journeyro\WebBundle\Entity\Product $products
     * @return Provider
     */
    public function addProduct(\VS\Journeyro\WebBundle\Entity\Product $products)
    {
        $this->products[] = $products;

        return $this;
    }

    /**
     * Remove products
     *
     * @param \VS\Journeyro\WebBundle\Entity\Product $products
     */
    public function removeProduct(\VS\Journeyro\WebBundle\Entity\Product $products)
    {
        $this->products->removeElement($products);
    }

    /**
     * Get products
     *
     * @return \Doctrine\Common\Collections\Collection 
     */
    public function getProducts()
    {
        return $this->products;
    }
}

---

为实体提供者编写固定装置的类

<?php

namespace VS\Journeyro\WebBundle\DataFixtures\ORM;

use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Common\DataFixtures\OrderedFixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\Collections\ArrayCollection;
use VS\Journeyro\WebBundle\Entity\Provider;

class LoadProviderData extends AbstractFixture implements OrderedFixtureInterface
{
    /**
     * {@inheritDoc}
     */

public function load(ObjectManager $manager)
    {

        $providers = array();

        // defining fixtures in $providers here

        foreach ($providers as $record) {
            $provider= new Provider();
            $provider->setName($record['name']);
            $provider->setSlug($record['slug']);
            $provider->setUrl($record['url']);
            $provider->setEmail($record['email']);
            $provider->setImage($record['image']);
            $provider->setDescription($record['description']);

            $manager->persist($provider);
            $manager->flush();

            $this->addReference('provider-'.$record['slug'], $provider);
        }


    }

/**
     * {@inheritDoc}
     */
    public function getOrder()
    {
        return 1;
    }
}

Answer 1

您必须在您的 Provider 实体中添加以下使用语句：

use Doctrine\Common\Collections\ArrayCollection;