Uploading a file with AngularJS and bluimp on success callback of another form

Question

I have followed the following tutorial in order to integrate the notorious bluimp jQuery file uploader in my AngularJS project.

After some research I found that in the options array, witihn the jquery.fileuploader.js file, there is an option called autoUpload, which when set to true upload the file automatically. I tried to disable it(false, undefined), but quickly I learned out that this causes the upload not to function at all, not even on the form submit.

I need to trigger the upload manually, say within another callback, or by a click event. can that be done?.

code:

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();

});

view:

    <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>

scripts loading order:

...
    <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 has an AngularJS version of jQuery File Upload available.

It includes a fileUpload directive and a FileUploadController with a submit() method that you can call manually.

You can see a working version at http://blueimp.github.io/jQuery-File-Upload/angularjs.html.

One thing you should pay attention to: make sure you load all .js files from the example in the correct order to avoid problems (cf. source of the example page).

Hope that helps!

---

UPDATE AFTER YOUR COMMENT:

When using the AngularJS version of jQuery File Upload, you create a form tag with the file-upload attribute like this:

<!-- 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>

Then in your controller you can assign the options for the jQuery File Upload like this:

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
        };
    }]);

You can assign the submit() handler to any ng-click attribute as long as it is inside the form (and thus can access the method).

Let me know if you need further help...

---

EXTRA SAMPLE CODE FOR SUCCESS CALLBACK:

If you need to run a callback function after all uploads have been completed, you can listen to the fileuploadstop event that is broadcasted by Blueimp:

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

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

Hope that helps!