dcat admin 多文件上传

问题描述

需要解决dcat admin 表单多附件管理的（附件名和保存文件名分开保存）

解决方案

上传文件管理

• 首先是新建上传文件表

  Schema::create('uploads', function (Blueprint $table) {
  $table->string('disk', 30)->comment('存储位置');
  $table->string('type', 20)->default('file')->comment('文件类型');
  $table->string('name', 150)->nullable()->comment('文件名称');
  $table->string('path', 150)->comment('文件路径');
  });

• 新建上传文件用的路由

  $router->any('/upload/handle/{disk}/{dir}', 'UploadController@handle');

• 上传处理

  public function handle($diskName, $dir) {
      $disk =$this->disk($diskName);
  
      // 判断是否是删除文件请求
      if ($this->isDeleteRequest()) {
          Upload::where('path', request()->key)->delete();
          // 删除文件并响应
          return $this->deleteFileAndResponse($disk);
      }
  
      // 获取上传的文件
      $file = $this->file();
      $newName =  Common::uniqueID().'.'.$file->getClientOriginalExtension();
      $result = $disk->putFileAs($dir, $file, $newName);
      $path = "{$dir}/$newName";
      $upload = new Upload;
      $upload->name = request()->name;
      $upload->path = $path;
      $upload->disk = $diskName;
      $upload->save();
  
      return $result
          ? $this->responseUploaded($path, $disk->url($path))
          : $this->responseErrorMessage('文件上传失败');
  }

• 扩展字段

  class CustomMultiFile extends MultipleFile
  {
  protected function initialPreviewConfig()
  {
      $previews = [];
      foreach ($this->value() as $path => $name) {
          $previews[] = [
              'id'   => $path,
              'path' => Helper::basename($name),
              'url'  => $this->objectUrl($path),
          ];
      }
  
      return $previews;
  }
  }

• 注册扩展字段

  Form::extend('customMultiFile', CustomMultiFile::class);

• 表单字段

  $form->customMultiFile('attachment', '附件')->disk('public')
   ->url('upload/handle/public/attachment')
   ->autoUpload()->autoSave(false)
   ->removable(true)->limit(10);