尝试再次上传时，如何使用 ng-file-upload 保留以前上传的文件？

Question

我已经实现了 ng-file-upload 指令来将我的文件上传到相应的 URL .....现在，当我选择一个文件时，根据 ng-file-upload 的功能，上传和选择同时发生。

但是，上传后，当我尝试再次上传某些其他文件时......以前上传的文件明显消失......我也想保留以前上传的文件，需要获取新上传的文件在这些之下...如何解决这个问题？

我的html

<form>
         <input type="text" class="browse-form"placeholder="   Click browse to load documents " required>
         <button ngf-select="vm.uploadFiles($files)" multiple accept=".csv,.pdf,.doc,.docx,.xlsx" class="btn btn-info btn-md">Browse</button>
        </form>
        <p style="margin-top: -30px;"> Note:Supported file formats are word,excel and pdf only</p>
        <table class="table table-fixed">
         <thead class="table-header"><tr>
         <th class="col-xs-6">DOCUMENT NAME</th>
         <th class="col-xs-1">SIZE</th>
         <th class="col-xs-1">VERSION</th>
         <th class="col-xs-2">DATE UPLOADED</th>
         <th class="col-xs-2">UPLOADED BY</th>
         <th class="col-xs-1">ACTION</th></tr>
         </thead>
         <tbody>
         <tr ng-repeat="uploading in vm.files track by $index" style="font:smaller">
         <td>{{uploading.name}}</td>

我的控制器.js

 vm.uploadFiles = function(files){
 vm.files = files;
 angular.forEach(files,function(file){
  file.upload = Upload.upload({
      url:' ', 
      data:{file:file}
  });

  file.upload.then(function(response){
      $timeout(function(){
          file.result = response.data;
      });
      },

  function (response) {
      if (response.status > 0)
          vm.errorMsg = response.status + ': ' + response.data;
  },

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

Answer 1

为什么不创建一个数组并在每次上传文件时推送给它

vm.fileArr = []

vm.uploadFiles = function(files) {


    vm.files = files;

    angular.forEach(files, function(file) {

        vm.fileArr.push(file)// show this array 

        file.upload = Upload.upload({
            url: ' ',
            data: {
                file: file
            }
        });
        file.upload.then(function(response) {
                $timeout(function() {
                    file.result = response.data;
                });
            },
            function(response) {
                if (response.status > 0)
                    vm.errorMsg = response.status + ': ' + response.data;
            },
            function(evt) {
                file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
            });
    });
}