javascript - 无法访问 Controller 中上传的文件

Question

帮助我解决问题的最新代码

    $scope.uploadedFiles = [];

    $scope.upload = function(files) {
        $scope.uploadedFiles = files;
        angular.forEach(files, function(file) {
            if (file && !file.$error) {
                if($scope.uploadedFiles.indexOf(file) == -1) {
                  $scope.uploadedFiles.push(file);
                }
                file.upload = Upload.upload({
                  url: 'uploader',
                  file: file,
                  userId: $scope.user._id
                });

                file.upload.then(function (response) {
                  $timeout(function () {
                    file.result = response.data.id;
                  });
                }, function (response) {
                  if (response.status > 0)
                    $scope.errorMsg = response.status + ': ' + response.data;
                });

                file.upload.progress(function (evt) {
                  file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
                });
          }   
        });
        console.log($scope.uploadedFiles);

    }

    $scope.removeUploadedFile = function(files, idx) {
      files.splice(idx, 1);
      console.log($scope.uploadedFiles);
      $scope.uploadedFiles = files;
      console.log($scope.uploadedFiles);
    }

									.form-group
										.btn.btn-default.btn-file
											i.fa.fa-paperclip
											|  Attach Files
											input(type='file', ngf-select='upload($files)',accept="text/plain, image/*", ng-model="files", ngf-multiple="true", ngf-max-size='10000000', ngf-keep="true", ngf-keep-distinct="true")
										p.help-block Max. 1MB
										br
										ul#files(ng-repeat="f in files", style='list-style-type: none; padding:0; margin:0;')
											li
												div
													{{f.name}}
													.pull-right
														{{f.size | bytes}}   #[i.fa.fa-close(ng-click="removeUploadedFile(files, $index)")]
												div.progress(ng-show="f.progress >= 0")
													div(style="width:{{f.progress}}%", ng-bind="f.progress + '%'") 

我正在使用ng-file-upload用于处理文件上传。一切工作正常，只是我无法访问 Controller 中的文件。

这是我的 Controller 代码:

$scope.upload = function(files) {
    uploadedFiles = files;
    console.log($scope.files);
    angular.forEach(files, function(file) {
        if (file && !file.$error) {
            file.upload = Upload.upload({
              url: 'uploader',
              file: file,
              userId: $scope.user._id
            });

            file.upload.then(function (response) {
              $timeout(function () {
                file.result = response.data.id;
              });
            }, function (response) {
              if (response.status > 0)
                $scope.errorMsg = response.status + ': ' + response.data;
            });

            file.upload.progress(function (evt) {
              file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
            });
      }   
    });

    console.log(uploadedFiles);
}

$scope.removeUploadedFile = function(files, idx) {
  console.log(files);
  files.splice(idx, 1);
  uploadedFiles = files;
}

还有我的 html 代码:

                                .form-group
                                    .btn.btn-default.btn-file
                                        i.fa.fa-paperclip
                                        |  Attach Files
                                        input(type='file', name='attachment', ngf-select='upload($files)',accept="text/plain, image/*", ng-model="files", ngf-multiple="true", ngf-max-size='10000000', ngf-keep="true", ngf-keep-distinct="true")
                                    p.help-block Max. 1MB
                                    br
                                    //- ul(ng-repeat='file in uploadedFiles', style='list-style-type: none; padding:0; margin:0;')
                                    ul#files(ng-repeat='f in files', style='list-style-type: none; padding:0; margin:0;')
                                        li
                                            div
                                                {{f.name}}
                                                .pull-right
                                                    {{f.size | bytes}}   #[i.fa.fa-close(ng-click="removeUploadedFile(files, $index)")]
                                            div.progress(ng-show="f.progress >= 0")
                                                div(style="width:{{f.progress}}%", ng-bind="f.progress + '%'") 

如果我打印$scope.files，它什么也不打印。

任何我做错的地方的指示将不胜感激。

更新:

为什么我需要访问 $scope.files ？文件上传功能工作正常，但我需要将上传的文件 ID 传递到我的后端系统，以便将该 ID 保存在我的数据库中。现在要做到这一点，我需要一些包含更新的文件列表的 $scope 变量。由于我允许用户删除上传的文件，因此我需要使用最新的有效上传文件列表更新一些 $scope 变量。如果仍然不清楚，请告诉我。

Answer 1

ngf-keep 存在一些问题，已在版本 7.0.12 中修复。 您原来的帖子现在应该可以使用，或者您可以按照以下步骤操作:https://jsfiddle.net/danialfarid/e7x1xs4a/

<button ngf-select="uploadFiles($files)" ngf-keep="true" multiple>Select Files</button>

$scope.uploadFiles = function(files) {
    $scope.files = files;
    console.log(files);
    angular.forEach(files, function(file) {
        if (file && !file.$error) {
            file.upload = Upload.upload({
              url: 'https://angular-file-upload-cors-srv.appspot.com/upload',
              file: file
            });

            file.upload.then(function (response) {"success"
            }, function (response) {"error"});

            file.upload.progress(function (evt) {"progress"});
        }   
    });
}