错误奏鸣曲分类束

Question

>我有一个问题。我安装了奏鸣曲分类包。

但是当我想创建一个新帖子时，我有一个错误：

属性 "collection" 和 "getCollection（）"、"collection（）"、"isCollection（）"、"hasCollection（）"、"__get（）" 在类 "DN\SiteBundle\Entity\Post" 中都不存在且具有公共访问权限。

这是我在PostAdmin.php（src/DN/SiteBundle/Admin/PostAdmin.php）中的代码

namespace DNSiteBundleAdmin;
use SonataAdminBundleAdminAdmin;
use SonataAdminBundleFormFormMapper;
use SonataAdminBundleDatagridDatagridMapper;
use SonataAdminBundleDatagridListMapper;
use SonataAdminBundleShowShowMapper;
use SonataCoreBundleValidatorErrorElement;
use KnpMenuItemInterface as MenuItemInterface;
class PostAdmin extends Admin
{
 // Fields to be shown on create/edit forms
protected function configureFormFields(FormMapper $formMapper)
{
    $formMapper
        ->add('title', 'text', array('label' => 'Post Title'))
        ->add('content')
 ->add('publication')
->add('author')
    ->add('collection', 'sonata_type_model_list', array('required' =>  false));
}
//...
}
?>

这是我在Post.php的代码 （ src/DN/SiteBundle/Entity/Post.php ）

 namespace DNSiteBundleEntity;
    use DoctrineORMMapping as ORM;
    use GedmoMappingAnnotation as Gedmo;
    use DoctrineExtensionsTaggableTaggable;
    use DoctrineCommonCollectionsArrayCollection;

    /**
     * @ORMEntity
     */
    class Post implements Taggable
    {
    /**
     * @var integer
     *
     * @ORMColumn(name="id", type="integer")
     * @ORMId
     * @ORMGeneratedValue(strategy="AUTO")
     */
    private $id;
    /**
     * @var string
     *
     * @ORMColumn(name="title", type="string", length=255)
     */
    private $title;
    /**
     * @var string
     *
     * @ORMColumn(name="author", type="string", length=255)
     */
    private $author;
    /**
     * @var string
     *
     * @ORMColumn(name="content", type="text")
     */
    private $content;
    /**
     * @var DateTime
     *
     * @ORMColumn(name="created_at", type="datetime")
     */
    private $created_at;
    /**
     * @var boolean
     *
     * @ORMColumn(name="publication", type="boolean")
     */
    private $publication;
    /**
     * @var string   
     * @GedmoSlug(fields={"title"})
     * @ORMColumn(name="slug", type="string", length=255)
     */
     private $slug;
      private $tags;
      public function getTags()
    {
        $this->tags = $this->tags ?: new ArrayCollection();
        return $this->tags;
    }
    public function getTaggableType()
    {
        return 'DN_tag';
    }
    public function getTaggableId()
    {
        return $this->getId();
    }


    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }
    /**
     * Set title
     *
     * @param string $title
     * @return Post
     */
    public function setTitle($title)
    {
        $this->title = $title;
        return $this;
    }
    /**
     * Get title
     *
     * @return string 
     */
    public function getTitle()
    {
        return $this->title;
    }
    /**
     * Set author
     *
     * @param string $author
     * @return Post
     */
    public function setAuthor($author)
    {
        $this->author = $author;
        return $this;
    }
    /**
     * Get author
     *
     * @return string 
     */
    public function getAuthor()
    {
        return $this->author;
    }
    /**
     * Set content
     *
     * @param string $content
     * @return Post
     */
    public function setContent($content)
    {
        $this->content = $content;
        return $this;
    }
    /**
     * Get content
     *
     * @return string 
     */
    public function getContent()
    {
        return $this->content;
    }

    /**
     * Set publication
     *
     * @param boolean $publication
     * @return Post
     */
    public function setPublication($publication)
    {
        $this->publication = $publication;
        return $this;
    }
    /**
     * Get publication
     *
     * @return boolean 
     */
    public function getPublication()
    {
        return $this->publication;
    }
    /**
     * Set slug
     *
     * @param string $slug
     * @return Post
     */
    public function setSlug($slug)
    {
        $this->slug = $slug;
        return $this;
    }
    /**
     * Get slug
     *
     * @return string 
     */
    public function getSlug()
    {
        return $this->slug;
    }


    /**
     * Set created_at
     *
     * @param DateTime $createdAt
     * @return Post
     */
    public function setCreatedAt($createdAt)
    {
        $this->created_at = $createdAt;
        return $this;
    }
    /**
     * Get created_at
     *
     * @return DateTime 
     */
    public function getCreatedAt()
    {
        return $this->created_at;
    }
            public function __construct()
    {
        $this->created_at = new DateTime("now");
    }
    public function __toString()
    {
        return $this->getTitle();
    }
    }

Answer 1

我猜你的字段名称应该是"标签"而不是"集合"。

我在实体中看不到属性"集合"。

add 方法的第一个参数应该是实体中定义的属性的名称。

namespace DNSiteBundleAdmin;
use SonataAdminBundleAdminAdmin;
use SonataAdminBundleFormFormMapper;
use SonataAdminBundleDatagridDatagridMapper;
use SonataAdminBundleDatagridListMapper;
use SonataAdminBundleShowShowMapper;
use SonataCoreBundleValidatorErrorElement;
use KnpMenuItemInterface as MenuItemInterface;
class PostAdmin extends Admin
{
    // Fields to be shown on create/edit forms
    protected function configureFormFields(FormMapper $formMapper)
    {
        $formMapper
            ->add('title', 'text', array('label' => 'Post Title'))
            ->add('content')
            ->add('publication')
            ->add('author')
            ->add('collection', 'sonata_type_model_list', array('required' =>  false));
    }
//...
}
?>

表格文档 ： https://sonata-project.org/bundles/doctrine-orm-admin/master/doc/reference/form_field_definition.html