angularjs - 在另一种形式的成功回调中使用 AngularJS 和 bluimp 上传文件

Question

我已关注following教程，以便将臭名昭著的 bluimp jQuery 文件 uploader 集成到我的 AngularJS 项目中。

经过一番研究，我发现在 jquery.fileuploader.js 文件的 options 数组中，有一个名为 autoUpload 的选项，当设置为 true 时，会自动上传文件。我尝试禁用它(错误，未定义)，但很快我发现这会导致上传根本无法运行，甚至在表单提交上也无法运行。

我需要手动触发上传，例如在另一个回调中或通过点击事件。可以吗？

代码:

app.directive("fileupload", function() {
    return {
      restrict: "A",
      scope: {
        done: "&",
        progress: "&",
        fail: "&",
        uploadurl: "=",
        customdata: "&"
      },
      link: function(scope, elem, attrs) {
        var uploadOptions;
        uploadOptions = {
          url: scope.uploadurl,
          dataType: "json"
        };
        if (scope.done) {
          uploadOptions.done = function(e, data) {
            return scope.$apply(function() {
              return scope.done({
                e: e,
                data: data
              });
            });
          };
        }
        if (scope.fail) {
          uploadOptions.fail = function(e, data) {
            return scope.$apply(function() {
              return scope.fail({
                e: e,
                data: data
              });
            });
          };
        }
        if (scope.progress) {
          uploadOptions.progress = function(e, data) {
            return scope.$apply(function() {
              return scope.progress({
                e: e,
                data: data
              });
            });
          };
        }
        return elem.fileupload(uploadOptions).bind("fileuploadsubmit", function(e, data) {
          return data.formData = {
                JSON.stringify(scope.customdata())
          };
        });
      }
    };
  });
app.service('uploadService', function(authService) {
    var initializeFn, processFn;
    initializeFn = function(e, data, process) {
      var upload;
      return upload = {
        message: '',
        uploadurl: authService.getBaseUrl() + '/applications/',
        status: false
      };
    };
    processFn = function(e, data, process) {
      var file, upload;
      upload = {};
      upload.successData = [];
      upload.status = true;
      upload.error = false;
      if (process === 'done') {
        upload.message = data.result.result;
        console.log(data);
        file = data.result.resume;
        upload.successData = {
          // name: file.name,
          // fullUrl: file.url,
          // thumbUrl: file.thumbnail_url
        };
      } else if (process === 'progress') {
        upload.message = 'Uploading....!!!';
      } else {
        upload.error = true;
        upload.message = 'Please try again';
        console.log(e, data);
      }
      return upload;
    };
    return {
      process: processFn,
      initialize: initializeFn
    };

  });

app.controller('applyCtrl', function($scope, $routeParams, uploadService){
        $scope.model.formData = {};
        $scope.model.formData.job = $routeParams.jobId;
        $scope.uploadLayer = function(e, data, process) {
          return $scope.uploadReturn = uploadService.process(e, data, process);
        };
        $scope.customData = function() {
            return $scope.model.formData;
        };
        return $scope.uploadReturn = uploadService.initialize();

});

查看:

    <form class="applyForm" ng-submit="uploadLayer(e, data, 'progress')">
        <fieldset>
            <div class="formLine">
                <div class="wideFieldContainer">
                    <input id="testUpload" type="file" fileupload customdata="customData()" name="resume" uploadurl="uploadReturn.uploadurl" done="uploadLayer(e, data, 'done')" fail="uploadLayer(e, data, 'fail')" progress="uploadLayer(e, data, 'progress')" />
                </div>
            </div>
                    </fieldset>
             </form>

脚本加载顺序:

...
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script src="lib/angular/angular.js"></script>
    <script src="lib/angular/angular-resource.js"></script>
    <script src="js/app.js"></script>
    <script src="js/services.js"></script>
    <script src="js/controllers.js"></script>
    <script src="js/filters.js"></script>
    <script src="js/directives.js"></script>
    <script src="lib/bluimp/js/vendor/jquery.ui.widget.js"></script>
    <script src="lib/bluimp/js/jquery.piframe-transport.js"></script>
     <script src="lib/bluimp/js/jquery.fileupload.js"></script>   
</body>
</html>

Answer 1

Blueimp 有 AngularJS 版本的 jQuery 文件上传可用。

它包括一个 fileUpload 指令和一个 FileUploadController 以及一个您可以手动调用的 submit() 方法。

您可以在http://blueimp.github.io/jQuery-File-Upload/angularjs.html查看工作版本.

您应该注意的一件事:确保以正确的顺序加载示例中的所有 .js 文件，以避免出现问题(参见示例页面的源代码)。

希望有帮助!

<小时/>

发表评论后更新:

当使用 AngularJS 版本的 jQuery 文件上传时，您可以创建一个带有 file-upload 属性的表单标签，如下所示:

<!-- Create a file upload form with options passed in from your scope -->
<form data-file-upload="options" data-ng-controller="YourController">

    <!-- This button will trigger a file selection dialog -->
    <span class="btn btn-success fileinput-button" ng-class="{disabled: disabled}">
        <span>Add files...</span>
        <input type="file" name="files[]" multiple="" ng-disabled="disabled">
    </span>

    <!-- This button will start the upload -->
    <button type="button" class="btn btn-primary start" data-ng-click="submit()">
        <span>Start upload</span>
    </button>

<form>

然后在您的 Controller 中，您可以为 jQuery 文件上传分配选项，如下所示:

angular.module('yourModule')
    .controller('YourController', [$scope, function($scope){

        // Options you want to pass to jQuery File Upload e.g.:
        $scope.options = {
            maxFileSize: 5000000,
            acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i
        };
    }]);

您可以将 submit() 处理程序分配给任何 ng-click 属性，只要它位于表单内部(因此可以访问该方法)。

如果您需要进一步帮助，请告诉我...

<小时/>

成功回调的额外示例代码:

如果您需要在所有上传完成后运行回调函数，您可以监听 Blueimp 广播的 fileuploadstop 事件:

// Listen to fileuploadstop event
$scope.$on('fileuploadstop', function(){

    // Your code here
    console.log('All uploads have finished');
});

希望有帮助!