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我的系统中有一个关系有问题。我很确定我这样做是正确的，并且我看不到代码中的错误。

我在下面粘贴了我的课程。基本上，当我执行 fighter.getFighterAttributes() 时，我得到一个空数组。类中的其他关系不会发生这种情况。此外，当我查看日志时，我看到正在调用其他关系，但没有调用 FighterAttributes()。

该表具有已使用实体插入的条目。

它必须是我的代码中的一个错误，但不确定:(

下面的类和日志。

<?php

namespace Acme\AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;

/**
 * @ORM\Entity(repositoryClass="Acme\AppBundle\Repository\FighterRepository")
 */
class Fighter
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="string", length=100)
     */
    protected $firstName;


    /**
     * @ORM\OneToMany(targetEntity="Contract", mappedBy="fighter")
     */
    protected $contracts;

    /**
     * @ORM\ManyToMany(targetEntity="Bout", mappedBy="fighters")
     */
    protected $bouts;

    /**
     * @ORM\OneToMany(targetEntity="FighterAttribute", mappedBy="fighter")
     */
    protected $fighterAttributes;

// Custom ------------------------------------------------

    /**
     * Set createDT
     */
    public function setCreateDT()
    {
        $this->createDT = new \DateTime("now");
    }

// Automated ---------------------------------------------

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

    /**
     * Set firstName
     *
     * @param string $firstName
     * @return Fighter
     */
    public function setFirstName($firstName)
    {
        $this->firstName = $firstName;

        return $this;
    }

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


    /**
     * Add bouts
     *
     * @param \Acme\AppBundle\Entity\Bout $bouts
     * @return Fighter
     */
    public function addBout(\Acme\AppBundle\Entity\Bout $bouts)
    {
        $this->bouts[] = $bouts;

        return $this;
    }

    /**
     * Remove bouts
     *
     * @param \Acme\AppBundle\Entity\Bout $bouts
     */
    public function removeBout(\Acme\AppBundle\Entity\Bout $bouts)
    {
        $this->bouts->removeElement($bouts);
    }

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

    /**
     * Add contracts
     *
     * @param \Acme\AppBundle\Entity\Contract $contracts
     * @return Fighter
     */
    public function addContract(\Acme\AppBundle\Entity\Contract $contracts)
    {
        $this->contracts[] = $contracts;

        return $this;
    }

    /**
     * Remove contracts
     *
     * @param \Acme\AppBundle\Entity\Contract $contracts
     */
    public function removeContract(\Acme\AppBundle\Entity\Contract $contracts)
    {
        $this->contracts->removeElement($contracts);
    }

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


    /**
     * Constructor
     */
    public function __construct()
    {
        $this->contracts = new \Doctrine\Common\Collections\ArrayCollection();
        $this->bouts = new \Doctrine\Common\Collections\ArrayCollection();
        $this->fighterAttributes = new \Doctrine\Common\Collections\ArrayCollection();
        $this->setCreateDT();
    }


    /**
     * Add fighterAttributes
     *
     * @param \Acme\AppBundle\Entity\FighterAttribute $fighterAttributes
     * @return Fighter
     */
    public function addFighterAttribute(\Acme\AppBundle\Entity\FighterAttribute $fighterAttributes)
    {
        $this->fighterAttributes[] = $fighterAttributes;

        return $this;
    }

    /**
     * Remove fighterAttributes
     *
     * @param \Acme\AppBundle\Entity\FighterAttribute $fighterAttributes
     */
    public function removeFighterAttribute(\Acme\AppBundle\Entity\FighterAttribute $fighterAttributes)
    {
        $this->fighterAttributes->removeElement($fighterAttributes);
    }

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

日志如下：

[2014-02-14 01:36:13] doctrine.DEBUG: SELECT ... FROM Fighter t0 WHERE t0.id = ? LIMIT 1 ["110"] []
[2014-02-14 01:36:13] doctrine.DEBUG: SELECT ... FROM Contract t0 WHERE t0.fighter_id = ? [110] []
[2014-02-14 01:36:13] doctrine.DEBUG: SELECT ... FROM Bout t0 INNER JOIN BoutFighter ON t0.id = BoutFighter.bout_id WHERE BoutFighter.fighter_id = ? [110] []

请注意，没有 FighterAttribute 条目。

下面的类 FighterAttribute：

<?php
namespace Acme\AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class FighterAttribute
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="integer")
     */
    protected $amount;

    /**
     * @ORM\ManyToOne(targetEntity="Fighter", inversedBy="fighterAttributes")
     */
    protected $fighter;

    /**
     * @ORM\ManyToOne(targetEntity="Attribute")
     */
    protected $attribute;


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

    /**
     * Set fighter
     *
     * @param \Acme\AppBundle\Entity\Fighter $fighter
     * @return FighterAttribute
     */
    public function setFighter(\Acme\AppBundle\Entity\Fighter $fighter = null)
    {
        $this->fighter = $fighter;

        return $this;
    }

    /**
     * Get fighter
     *
     * @return \Acme\AppBundle\Entity\Fighter 
     */
    public function getFighter()
    {
        return $this->fighter;
    }

    /**
     * Set attribute
     *
     * @param \Acme\AppBundle\Entity\Attribute $attribute
     * @return FighterAttribute
     */
    public function setAttribute(\Acme\AppBundle\Entity\Attribute $attribute = null)
    {
        $this->attribute = $attribute;

        return $this;
    }

    /**
     * Get attribute
     *
     * @return \Acme\AppBundle\Entity\Attribute 
     */
    public function getAttribute()
    {
        return $this->attribute;
    }

    /**
     * Set amount
     *
     * @param integer $amount
     * @return FighterAttribute
     */
    public function setAmount($amount)
    {
        $this->amount = $amount;

        return $this;
    }

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

更新

此代码打印“null”

$em = $this->getDoctrine()->getManager();
        $fighter = $em->getRepository('AcmeAppBundle:Fighter')
            ->findOneById($fighter_id);

        \Doctrine\Common\Util\Debug::dump($fighter->getFighterAttributes(), 1);
        die();

此代码打印 fighterAttributes：

$em = $this->getDoctrine()->getManager();
        $fighter = $em->getRepository('AcmeAppBundle:Fighter')
            ->findOneById($fighter_id);

        $attributes = $em->getRepository('AcmeAppBundle:FighterAttribute')
            ->findByFighter($fighter);

        \Doctrine\Common\Util\Debug::dump($attributes, 1);
        die();

输出：

array (size=12) 0 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 1 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 2 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 3 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 4 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 5 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 6 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 7 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 8 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 9 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 10 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 11 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38)

这段代码：

$em = $this->getDoctrine()->getManager();
        $fighter = $em->getRepository('AcmeAppBundle:Fighter')
            ->findOneById($fighter_id);

        $attributes = $em->getRepository('AcmeAppBundle:FighterAttribute')
            ->findByFighter($fighter);

        foreach ($attributes as $attribute)
        {
            $fighter->addFighterAttribute($attribute);
        }

        $em->persist($fighter);
        $em->flush();

        $fighter1 = $em->getRepository('AcmeAppBundle:Fighter')
            ->findOneById($fighter_id);

        \Doctrine\Common\Util\Debug::dump($fighter1->getFighterAttributes(), 1);
        die();

输出：

array (size=12) 0 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 1 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 2 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 3 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 4 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 5 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 6 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 7 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 8 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 9 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 10 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38) 11 => string 'Acme\AppBundle\Entity\FighterAttribute' (length=38)

谢谢您的帮助！！

4

1 回答 1

0

好的。所以我发现了这个问题。正是我一直在使用的缓存设置给我带来了各种各样的问题。

我看到即使我更新了一些对象，应用程序的行为也很不稳定，并且没有识别出一些变化。即使我已经多次清除应用程序缓存，也需要清除 APC 缓存。

我决定暂时禁用它，因为我仍在开发中，但我认为清除 APC 缓存也可以解决问题。在 config_dev.yml 我评论了以下内容：

#doctrine:
#    orm:
#        metadata_cache_driver: apc
#        result_cache_driver: apc
#        query_cache_driver: apc

@Patt，感谢您的帮助，并通过您的解决方案帮助我解决了这个问题，但是您建议的代码更改在我执行此更改后并没有增加价值。正如我怀疑的那样，除非有计划使用它或进行某种类型的级联持久性，否则无需更新关系的非拥有方。

于 2014-02-15T04:04:21.577 回答