另一個類的php oop調用方法

Question

我是OOP的新手。 我正在努力保持SOLID原則。 有一些問題。 這是我的代碼。 當我通過依賴class Image() ， class Video()或UploaderClient中的其他內容傳遞時，是否可以訪問class GenericUploader class FileManager方法class GenericUploader （使用抽象類，因為我可以提供一些基本功能）？ 目標始終是可以訪問class FileManager方法，如果我作為依賴項圖像，視頻或文件管理器通過，則不會受到影響？

interface IFile
{
    public function crete(array $data);
}

interface IFileManager extends IFile
{
    public function exist(int $id);
}

class FileManager implements IFileManager
{
    public function crete(array $data)
    {
        // store in DB files
    }

    public function exist()
    {

    }
}

class Image implements IFile
{
    public function crete(array $data)
    {
        //access to FileManager
        // store in DB image and files
    }
}

abstract class GenericUploader
{
    public $service;

    public function __construct(IFile $service)
    {
        $this->service = $service;
    }

    public function upload()
    {
        //access to FileManager if $service is new Image()
    }
}

class ImageUploader extends GenericUploader
{
    public function __construct(IFile $service)
    {
        parent::__construct($service);
    }
}

class FileManagerUploader extends GenericUploader
{
    public function __construct(IFile $service)
    {
        parent::__construct($service);
    }
}

class UploaderClient
{
    public function uploadFile(IFile $service)
    {
        $name = get_class($service);
        $uploaderClass = $name . 'Uploader';

        if (class_exists($uploaderClass)) {
            $uploader = new $uploaderClass($service);
            $uploader->upload();
        }
    }
}

$client = new UploaderClient();
$client->uploadFile(new Image());
$client->uploadFile(new FileManager());

更新 ：例如，如果我擴展圖像

class Image extends FileManager implements IFile
    {
        public function crete(array $data)
        {
            //access to FileManager
            // store in DB image and files
        }
    }

從GenericUploader以這種方式（$ this-> service-> exist）訪問類FileManage方法是否錯誤？ 是否違反開放/關閉原則？

Answer 1

如果我理解您的問題，請輸入我的代碼。 有一個trait ，它可以幫助您：

UPD ：

interface IFile
{
    public function crete(array $data);
}

// You can only implement interface, but not extends
class Image implements IFile
{
    public function crete(array $data)
    {
        //access to FileManager
        // store in DB image and files
    }
}

class FileManager implements IFile
{
    public function crete(array $data)
    {
        // store in DB files
    }

    public function exist(int $id)
    {

    }
}

abstract class GenericUploader extends FileManager
{
    public $service;

    public function __construct(IFile $service)
    {
        $this->service = $service;
    }

    public function upload()
    {
        //access to FileManager if $service is new Image()
    }
}

class ImageUploader extends GenericUploader
{
    public function __construct(IFile $service)
    {
        parent::__construct($service);
    }
}

class FileManagerUploader extends GenericUploader
{
    public function __construct(IFile $service)
    {
        parent::__construct($service);
    }
}

class UploaderClient
{
    public function uploadFile(IFile $service)
    {
        $name = get_class($service);
        $uploaderClass = $name . 'Uploader';

        if (class_exists($uploaderClass)) {
            $uploader = new $uploaderClass($service);
            $uploader->upload();
        }
    }
}

$client = new UploaderClient();
$client->uploadFile(new Image());
$client->uploadFile(new FileManager());