Question

我正在尝试为我的脚本制作一个论坛模块，我快完成了，但是遇到了一个问题。

当前，这是我的结构：

一个Forum可以有多个Topics（oneToMany）
一个Topic可以有多个Messages（oneToMany）

主题消息也保存为消息实体。

这是我的Topic实体：

<?php declare(strict_types = 1);

namespace App\Entity\Forum;

use App\Entity\Player\Player;
use App\Helper\SlugifyHelper;
use Carbon\Carbon;
use Doctrine\Common\Collections\ArrayCollection;
use Symfony\Component\Serializer\Annotation\Groups;

/**
 * Class Topic
 * @package App\Entity\Forum
 */
class Topic
{
    const VISIBILITY_DELETED   = -1;
    const VISIBILITY_PENDING   = 0;
    const VISIBILITY_PUBLISHED = 1;

    /**
     * @var int|null
     */
    private $id;

    /**
     * @var Forum|null
     */
    private $forum;

    /**
     * @var string|null
     */
    private $title;

    /**
     * @var bool
     *
     * @Groups({"promote"})
     */
    private $announce = false;

    /**
     * @var int|null
     */
    private $totalMessages = 0;

    /**
     * @var Message|null
     */
    private $lastMessage = null;

    /**
     * @var int|null
     */
    private $visibility = self::VISIBILITY_PUBLISHED;

    /**
     * @var bool
     *
     * @Groups({"pin"})
     */
    private $pinned = false;

    /**
     * @var bool
     *
     * @Groups({"status"})
     */
    private $closed = false;

    /**
     * @var \DateTime|null
     */
    private $publishedAt;

    /**
     * @var Message[]|ArrayCollection
     */
    private $messages;

    /**
     * Topic constructor.
     */
    public function __construct()
    {
        $this->messages    = new ArrayCollection();
        $this->publishedAt = Carbon::now();
    }

    /**
     * @return int|null
     */
    public function getId(): ?int
    {
        return $this->id;
    }

    /**
     * @param int|null $id
     *
     * @return Topic
     */
    public function setId(?int $id): Topic
    {
        $this->id = $id;

        return $this;
    }

    /**
     * @return Forum|null
     */
    public function getForum(): ?Forum
    {
        return $this->forum;
    }

    /**
     * @param Forum|null $forum
     *
     * @return Topic
     */
    public function setForum(?Forum $forum): Topic
    {
        $this->forum = $forum;

        return $this;
    }

    /**
     * @return string|null
     */
    public function getTitle(): ?string
    {
        return $this->title;
    }

    /**
     * @param string|null $title
     *
     * @return Topic
     */
    public function setTitle(?string $title): Topic
    {
        $this->title = $title;

        return $this;
    }

    /**
     * @return bool
     */
    public function isAnnounce(): bool
    {
        return $this->announce;
    }

    /**
     * @param bool $announce
     *
     * @return Topic
     */
    public function setAnnounce(bool $announce): Topic
    {
        $this->announce = $announce;

        return $this;
    }

    /**
     * @return int|null
     */
    public function getTotalMessages(): ?int
    {
        return $this->totalMessages;
    }

    /**
     * @param int|null $totalMessages
     *
     * @return Topic
     */
    public function setTotalMessages(?int $totalMessages): Topic
    {
        $this->totalMessages = $totalMessages;

        return $this;
    }

    /**
     * @return Message|null
     */
    public function getLastMessage(): ?Message
    {
        return $this->lastMessage;
    }

    /**
     * @param Message|null $lastMessage
     *
     * @return Topic
     */
    public function setLastMessage(?Message $lastMessage): Topic
    {
        $this->lastMessage = $lastMessage;

        return $this;
    }

    /**
     * @return int|null
     */
    public function getVisibility(): ?int
    {
        return $this->visibility;
    }

    /**
     * @param int|null $visibility
     *
     * @return Topic
     */
    public function setVisibility(?int $visibility): Topic
    {
        $this->visibility = $visibility;

        return $this;
    }

    /**
     * @return bool
     */
    public function isPinned(): bool
    {
        return $this->pinned;
    }

    /**
     * @param bool $pinned
     *
     * @return Topic
     */
    public function setPinned(bool $pinned): Topic
    {
        $this->pinned = $pinned;

        return $this;
    }

    /**
     * @return bool
     */
    public function isClosed(): bool
    {
        return $this->closed;
    }

    /**
     * @param bool $closed
     *
     * @return Topic
     */
    public function setClosed(bool $closed): Topic
    {
        $this->closed = $closed;

        return $this;
    }

    /**
     * @return \DateTime|null
     */
    public function getPublishedAt(): ?\DateTime
    {
        return $this->publishedAt;
    }

    /**
     * @param \DateTime|null $publishedAt
     *
     * @return Topic
     */
    public function setPublishedAt(?\DateTime $publishedAt): Topic
    {
        $this->publishedAt = $publishedAt;

        return $this;
    }

    /**
     * @return Message[]|ArrayCollection
     */
    public function getMessages()
    {
        return $this->messages;
    }

    /**
     * @param Message[]|ArrayCollection $messages
     *
     * @return Topic
     */
    public function setMessages($messages)
    {
        $this->messages = $messages;

        return $this;
    }

    /**
     * @param Message $message
     *
     * @return Topic
     */
    public function addMessage(Message $message): Topic
    {
        if (!$this->messages->contains($message)) {
            $this->messages->add($message);
        }

        return $this;
    }

    /**
     * @param Message $message
     *
     * @return Topic
     */
    public function removeMessage(Message $message): Topic
    {
        if ($this->messages->contains($message)) {
            $this->messages->removeElement($message);
        }

        return $this;
    }

    /**
     * @return bool
     */
    public function isDeleted(): bool
    {
        return self::VISIBILITY_DELETED === $this->visibility;
    }

    /**
     * @return array
     */
    public function getUrlParameters(): array
    {
        return [
            'id'        => $this->id,
            'topicSlug' => SlugifyHelper::slugify($this->title)
        ];
    }

    /**
     * @return Player|null
     */
    public function getAuthor(): ?Player
    {
        if ($this->messages->count() > 0) {
            /**
             * @var $message Message
             */
            $message = $this->messages->first();

            return $message->getPlayer();
        }

        return null;
    }

    /**
     * @return Message|null
     */
    public function getMessage(): ?Message
    {
        if ($this->messages->count() > 0) {
            return $this->messages->first();
        }

        return null;
    }

    /**
     * @return Topic
     */
    public function increaseTotalMessages(): Topic
    {
        $this->totalMessages++;

        return $this;
    }

    /**
     * @return Topic
     */
    public function decreaseTotalMessages(): Topic
    {
        $this->totalMessages--;

        return $this;
    }

    /**
     * @return array
     */
    public static function getVisibilityStatuses(): array
    {
        return [
            self::VISIBILITY_DELETED   => 'Deleted',
            self::VISIBILITY_PENDING   => 'Pending',
            self::VISIBILITY_PUBLISHED => 'Published'
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function __toString()
    {
        return $this->title ?? '-';
    }
}

这是我的Message实体：

<?php declare(strict_types = 1);

namespace App\Entity\Forum;

use App\Entity\Player\Player;
use App\Helper\SlugifyHelper;
use Carbon\Carbon;

/**
 * Class Message
 * @package App\Entity\Forum
 */
class Message
{
    /**
     * @var int|null
     */
    private $id;

    /**
     * @var Topic|null
     */
    private $topic;

    /**
     * @var Forum|null
     */
    private $forum;

    /**
     * @var Player|null
     */
    private $player;

    /**
     * @var string|null
     */
    private $message;

    /**
     * @var \DateTime|null
     */
    private $publishedAt;

    /**
     * Message constructor.
     */
    public function __construct()
    {
        $this->publishedAt = Carbon::now();
    }

    /**
     * @return int|null
     */
    public function getId(): ?int
    {
        return $this->id;
    }

    /**
     * @param int|null $id
     *
     * @return Message
     */
    public function setId(?int $id): Message
    {
        $this->id = $id;

        return $this;
    }

    /**
     * @return Topic|null
     */
    public function getTopic(): ?Topic
    {
        return $this->topic;
    }

    /**
     * @param Topic|null $topic
     *
     * @return Message
     */
    public function setTopic(?Topic $topic): Message
    {
        $this->topic = $topic;

        return $this;
    }

    /**
     * @return Forum|null
     */
    public function getForum(): ?Forum
    {
        return $this->forum;
    }

    /**
     * @param Forum|null $forum
     *
     * @return Message
     */
    public function setForum(?Forum $forum): Message
    {
        $this->forum = $forum;

        return $this;
    }

    /**
     * @return Player|null
     */
    public function getPlayer(): ?Player
    {
        return $this->player;
    }

    /**
     * @param Player|null $player
     *
     * @return Message
     */
    public function setPlayer(?Player $player): Message
    {
        $this->player = $player;

        return $this;
    }

    /**
     * @return string|null
     */
    public function getMessage(): ?string
    {
        return $this->message;
    }

    /**
     * @param string|null $message
     *
     * @return Message
     */
    public function setMessage(?string $message): Message
    {
        $this->message = $message;

        return $this;
    }

    /**
     * @return \DateTime|null
     */
    public function getPublishedAt(): ?\DateTime
    {
        return $this->publishedAt;
    }

    /**
     * @param \DateTime|null $publishedAt
     *
     * @return Message
     */
    public function setPublishedAt(?\DateTime $publishedAt): Message
    {
        $this->publishedAt = $publishedAt;

        return $this;
    }

    public function getShortMessage(): ?string
    {
        return SlugifyHelper::shortText($this->message, 100);
    }

    /**
     * {@inheritdoc}
     */
    public function __toString()
    {
        return $this->message ?? '-';
    }
}

这是管理员代码（我正在使用最新版本的Sonata Admin）。

protected function configureFormFields(FormMapper $form)
{
    $form
        ->with('General', [
            'box_class' => 'box box-custom',
            'class'     => 'col-md-6 col-sm-12 col-xs-12'
        ])
        ->add('forum', ModelAutocompleteType::class, [
            'property' => 'title',
            'attr'     => [
                'placeholder' => 'Search forum'
            ]
        ])
        ->add('title', TextType::class, [
            'attr' => [
                'placeholder' => 'Title'
            ]
        ])
        ->add('message.player', ModelAutocompleteType::class, [
                'label'    => 'Author',
                'property' => 'username',
                'attr'     => [
                    'placeholder' => 'Search player'
                ],
        ], [
        'admin_code' => PlayerAdmin::class,
    ])
    ->add('message.message', TextareaType::class, [
            'label' => 'Message',
            'attr'  => [
            'placeholder' => 'Message',
            'rows'        => 6,
            'class'       => 'js-summernote'
        ]
    ])
    ->end()
    ->with('Configuration', [
        'box_class' => 'box box-custom',
        'class'     => 'col-md-6 col-sm-12 col-xs-12'
    ])
    ->add('visibility', ChoiceType::class, [
        'choices' => array_flip(Topic::getVisibilityStatuses())
    ])
    ->add('announce', CheckboxType::class, [
        'required' => false,
    ])
    ->add('pinned', CheckboxType::class, [
        'required' => false,
    ])
    ->add('closed', CheckboxType::class, [
        'required' => false,
    ])
    ->end();
}

让我们假设我仅使用此代码来编辑主题实体（我知道当前代码不适用于创建新主题）。

这是我的错误：

当前字段message__player未链接到管理员。请为目标实体创建一个：

我做错了什么？

Sonata Admin ModelAutocompleteType无法按预期工作

0 个答案: