File Upload using AngularJS
AngularjsAngularjs FileuploadAngularjs Problem Overview
Here is my HTML form:
<form name="myForm" ng-submit="">
<input ng-model='file' type="file"/>
<input type="submit" value='Submit'/>
</form>
I want to upload an image from local machine and want to read the content of the uploaded file. All this I want to do using AngularJS.
When I try to print the value of $scope.file it comes as undefined.
Angularjs Solutions
Solution 1 - Angularjs
Some of the answers here propose using FormData(), but unfortunately that is a browser object not available in Internet Explorer 9 and below. If you need to support those older browsers, you will need a backup strategy such as using <iframe> or Flash.
There are already many Angular.js modules to perform file uploading. These two have explicit support for older browsers:
- https://github.com/leon/angular-upload - uses iframes as a fallback
- https://github.com/danialfarid/ng-file-upload - uses FileAPI/Flash as a fallback
And some other options:
- https://github.com/nervgh/angular-file-upload/
- https://github.com/uor/angular-file
- https://github.com/twilson63/ngUpload
- https://github.com/uploadcare/angular-uploadcare
One of these should fit your project, or may give you some insight into how to code it yourself.
Solution 2 - Angularjs
The easiest is to use HTML5 API, namely FileReader
HTML is pretty straightforward:
<input type="file" id="file" name="file"/>
<button ng-click="add()">Add</button>
In your controller define 'add' method:
$scope.add = function() {
var f = document.getElementById('file').files[0],
r = new FileReader();
r.onloadend = function(e) {
var data = e.target.result;
//send your binary data via $http or $resource or do anything else with it
}
r.readAsBinaryString(f);
}
Browser Compatibility
Desktop Browsers > Edge 12, Firefox(Gecko) 3.6(1.9.2), > Chrome 7, Opera* 12.02, Safari 6.0.2
Mobile Browsers
> Firefox(Gecko) 32, > Chrome 3, > Opera* 11.5, > Safari 6.1
Note : readAsBinaryString() method is deprecated and readAsArrayBuffer() should be used instead.
Solution 3 - Angularjs
This is the modern browser way, without 3rd party libraries. Works on all the latest browsers.
app.directive('myDirective', function (httpPostFactory) {
return {
restrict: 'A',
scope: true,
link: function (scope, element, attr) {
element.bind('change', function () {
var formData = new FormData();
formData.append('file', element[0].files[0]);
httpPostFactory('upload_image.php', formData, function (callback) {
// recieve image name to use in a ng-src
console.log(callback);
});
});
}
};
});
app.factory('httpPostFactory', function ($http) {
return function (file, data, callback) {
$http({
url: file,
method: "POST",
data: data,
headers: {'Content-Type': undefined}
}).success(function (response) {
callback(response);
});
};
});
HTML:
<input data-my-Directive type="file" name="file">
PHP:
if (isset($_FILES['file']) && $_FILES['file']['error'] == 0) {
// uploads image in the folder images
$temp = explode(".", $_FILES["file"]["name"]);
$newfilename = substr(md5(time()), 0, 10) . '.' . end($temp);
move_uploaded_file($_FILES['file']['tmp_name'], 'images/' . $newfilename);
// give callback to your angular code with the image src name
echo json_encode($newfilename);
}
js fiddle (only front-end) https://jsfiddle.net/vince123/8d18tsey/31/
Solution 4 - Angularjs
Below is working example of file upload:
http://jsfiddle.net/vishalvasani/4hqVu/
In this one function called
setFiles
From View which will update the file array in controller
or
You can check jQuery File Upload using AngularJS
Solution 5 - Angularjs
You can achieve nice file and folder upload using flow.js.
https://github.com/flowjs/ng-flow
Check out a demo here
http://flowjs.github.io/ng-flow/
It doesn't support IE7, IE8, IE9, so you'll eventually have to use a compatibility layer
Solution 6 - Angularjs
Use the onchange event to pass the input file element to your function.
<input type="file" onchange="angular.element(this).scope().fileSelected(this)" />
So when a user selects a file, you have a reference to it without the user needing to click an "Add" or "Upload" button.
$scope.fileSelected = function (element) {
var myFileSelected = element.files[0];
};
Solution 7 - Angularjs
I tried all alternatives that @Anoyz (Correct answer) gives... and the best solution is https://github.com/danialfarid/angular-file-upload
Some Features:
- Progress
- Multifiles
- Fields
- Old browsers (IE8-9)
It's work fine for me. You just have to pay attention to instructions.
In server-side i use NodeJs, Express 4 and Multer middleware to manage multipart request.
Solution 8 - Angularjs
HTML
<html>
<head></head>
<body ng-app = "myApp">
<form ng-controller = "myCtrl">
<input type = "file" file-model="files" multiple/>
<button ng-click = "uploadFile()">upload me</button>
<li ng-repeat="file in files">{{file.name}}</li>
</form>
Scripts
<script src =
"http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<script>
angular.module('myApp', []).directive('fileModel', ['$parse', function ($parse) {
return {
restrict: 'A',
link: function(scope, element, attrs) {
element.bind('change', function(){
$parse(attrs.fileModel).assign(scope,element[0].files)
scope.$apply();
});
}
};
}]).controller('myCtrl', ['$scope', '$http', function($scope, $http){
$scope.uploadFile=function(){
var fd=new FormData();
console.log($scope.files);
angular.forEach($scope.files,function(file){
fd.append('file',file);
});
$http.post('http://localhost:1337/mediaobject/upload',fd,
{
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
}).success(function(d)
{
console.log(d);
})
}
}]);
</script>
Solution 9 - Angularjs
The <input type=file> element does not by default work with the ng-model directive. It needs a custom directive:
Working Demo of select-ng-files Directive that Works with ng-model1
angular.module("app",[]);
angular.module("app").directive("selectNgFiles", function() {
return {
require: "ngModel",
link: function postLink(scope,elem,attrs,ngModel) {
elem.on("change", function(e) {
var files = elem[0].files;
ngModel.$setViewValue(files);
})
}
}
});
<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app="app">
<h1>AngularJS Input `type=file` Demo</h1>
<input type="file" select-ng-files ng-model="fileList" multiple>
<h2>Files</h2>
<div ng-repeat="file in fileList">
{{file.name}}
</div>
</body>
$http.post from a FileList
$scope.upload = function(url, fileList) {
var config = { headers: { 'Content-Type': undefined },
transformResponse: angular.identity
};
var promises = fileList.map(function(file) {
return $http.post(url, file, config);
});
return $q.all(promises);
};
When sending a POST with a File object, it is important to set 'Content-Type': undefined. The XHR send method will then detect the File object and automatically set the content type.
Solution 10 - Angularjs
Easy with a directive
Html:
<input type="file" file-upload multiple/>
JS:
app.directive('fileUpload', function () {
return {
scope: true, //create a new scope
link: function (scope, el, attrs) {
el.bind('change', function (event) {
var files = event.target.files;
//iterate files since 'multiple' may be specified on the element
for (var i = 0;i<files.length;i++) {
//emit event upward
scope.$emit("fileSelected", { file: files[i] });
}
});
}
};
In the directive we ensure a new scope is created and then listen for changes made to the file input element. When changes are detected with emit an event to all ancestor scopes (upward) with the file object as a parameter.
In your controller:
$scope.files = [];
//listen for the file selected event
$scope.$on("fileSelected", function (event, args) {
$scope.$apply(function () {
//add the file object to the scope's files collection
$scope.files.push(args.file);
});
});
Then in your ajax call:
data: { model: $scope.model, files: $scope.files }
http://shazwazza.com/post/uploading-files-and-json-data-in-the-same-request-with-angular-js/
Solution 11 - Angularjs
i think this is the angular file upload:
ng-file-upload
Lightweight Angular JS directive to upload files.
Here is the DEMO page.Features
- Supports upload progress, cancel/abort upload while in progress, File drag and drop (html5), Directory drag and drop (webkit), CORS, PUT(html5)/POST methods, validation of file type and size, show preview of selected images/audio/videos.
- Cross browser file upload and FileReader (HTML5 and non-HTML5) with Flash polyfill FileAPI. Allows client side validation/modification before uploading the file
- Direct upload to db services CouchDB, imgur, etc... with file's content type using Upload.http(). This enables progress event for angular http POST/PUT requests.
- Seperate shim file, FileAPI files are loaded on demand for non-HTML5 code meaning no extra load/code if you just need HTML5 support.
- Lightweight using regular $http to upload (with shim for non-HTML5 browsers) so all angular $http features are available
Solution 12 - Angularjs
Your file and json data uploading at the same time .
// FIRST SOLUTION
var _post = function (file, jsonData) {
$http({
url: your url,
method: "POST",
headers: { 'Content-Type': undefined },
transformRequest: function (data) {
var formData = new FormData();
formData.append("model", angular.toJson(data.model));
formData.append("file", data.files);
return formData;
},
data: { model: jsonData, files: file }
}).then(function (response) {
;
});
}
// END OF FIRST SOLUTION
// SECOND SOLUTION
// If you can add plural file and If above code give an error.
// You can try following code
var _post = function (file, jsonData) {
$http({
url: your url,
method: "POST",
headers: { 'Content-Type': undefined },
transformRequest: function (data) {
var formData = new FormData();
formData.append("model", angular.toJson(data.model));
for (var i = 0; i < data.files.length; i++) {
// add each file to
// the form data and iteratively name them
formData.append("file" + i, data.files[i]);
}
return formData;
},
data: { model: jsonData, files: file }
}).then(function (response) {
;
});
}
// END OF SECOND SOLUTION
Solution 13 - Angularjs
You can use a FormData object which is safe and fast:
// Store the file object when input field is changed
$scope.contentChanged = function(event){
if (!event.files.length)
return null;
$scope.content = new FormData();
$scope.content.append('fileUpload', event.files[0]);
$scope.$apply();
}
// Upload the file over HTTP
$scope.upload = function(){
$http({
method: 'POST',
url: '/remote/url',
headers: {'Content-Type': undefined },
data: $scope.content,
}).success(function(response) {
// Uploading complete
console.log('Request finished', response);
});
}
Solution 14 - Angularjs
http://jsfiddle.net/vishalvasani/4hqVu/ works fine in chrome and IE (if you update CSS a little in background-image). This is used for updating progress bar:
scope.progress = Math.round(evt.loaded * 100 / evt.total)
but in FireFox angular's [percent] data is not updated in DOM successfully,although files are uploading successfully.
Solution 15 - Angularjs
You may consider IaaS for file upload, such as Uploadcare. There is an Angular package for it: https://github.com/uploadcare/angular-uploadcare
Technically it's implemented as a directive, providing different options for uploading, and manipulations for uploaded images within the widget:
<uploadcare-widget
ng-model="object.image.info.uuid"
data-public-key="YOURKEYHERE"
data-locale="en"
data-tabs="file url"
data-images-only="true"
data-path-value="true"
data-preview-step="true"
data-clearable="true"
data-multiple="false"
data-crop="400:200"
on-upload-complete="onUCUploadComplete(info)"
on-widget-ready="onUCWidgetReady(widget)"
value="{{ object.image.info.cdnUrl }}"
/>
More configuration options to play with: https://uploadcare.com/widget/configure/
Solution 16 - Angularjs
I know this is a late entry but I have created a simple upload directive. Which you can get working in no time!
<input type="file" multiple ng-simple-upload web-api-url="/api/Upload" callback-fn="myCallback" />
ng-simple-upload more on Github with an example using Web API.
Solution 17 - Angularjs
HTML
<input type="file" id="file" name='file' onchange="angular.element(this).scope().profileimage(this)" />
add 'profileimage()' method to your controller
$scope.profileimage = function(selectimage) {
console.log(selectimage.files[0]);
var selectfile=selectimage.files[0];
r = new FileReader();
r.onloadend = function (e) {
debugger;
var data = e.target.result;
}
r.readAsBinaryString(selectfile);
}
Solution 18 - Angularjs
This should be an update/comment to @jquery-guru's answer but as I don't have enough rep it will go here. It fixes the errors that are now generated by the code.
https://jsfiddle.net/vzhrqotw/
The change is basically:
FileUploadCtrl.$inject = ['$scope']
function FileUploadCtrl(scope) {
To:
app.controller('FileUploadCtrl', function($scope)
{
Feel free to move to a more appropriate location if desired.
Solution 19 - Angularjs
I've read all the thread and the HTML5 API solution looked the best. But it changes my binary files, corrupting them in a manner I've not investigated. The solution that worked perfectly for me was :
HTML :
<input type="file" id="msds" ng-model="msds" name="msds"/>
<button ng-click="msds_update()">
Upload
</button>
JS:
msds_update = function() {
var f = document.getElementById('msds').files[0],
r = new FileReader();
r.onloadend = function(e) {
var data = e.target.result;
console.log(data);
var fd = new FormData();
fd.append('file', data);
fd.append('file_name', f.name);
$http.post('server_handler.php', fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
})
.success(function(){
console.log('success');
})
.error(function(){
console.log('error');
});
};
r.readAsDataURL(f);
}
Server side (PHP):
$file_content = $_POST['file'];
$file_content = substr($file_content,
strlen('data:text/plain;base64,'));
$file_content = base64_decode($file_content);
Solution 20 - Angularjs
I am able to upload files using AngularJS by using below code:
The file for the argument that needs to be passed for the function ngUploadFileUpload is $scope.file as per your question.
The key point here is to use transformRequest: []. This will prevent $http with messing with the contents of the file.
function getFileBuffer(file) {
var deferred = new $q.defer();
var reader = new FileReader();
reader.onloadend = function (e) {
deferred.resolve(e.target.result);
}
reader.onerror = function (e) {
deferred.reject(e.target.error);
}
reader.readAsArrayBuffer(file);
return deferred.promise;
}
function ngUploadFileUpload(endPointUrl, file) {
var deferred = new $q.defer();
getFileBuffer(file).then(function (arrayBuffer) {
$http({
method: 'POST',
url: endPointUrl,
headers: {
"accept": "application/json;odata=verbose",
'X-RequestDigest': spContext.securityValidation,
"content-length": arrayBuffer.byteLength
},
data: arrayBuffer,
transformRequest: []
}).then(function (data) {
deferred.resolve(data);
}, function (error) {
deferred.reject(error);
console.error("Error", error)
});
}, function (error) {
console.error("Error", error)
});
return deferred.promise;
}
Solution 21 - Angularjs
Above accepted answer is not browser compatible. If some one has compatibility issue try this.
View Code
<div ng-controller="MyCtrl">
<input type="file" id="file" name="file"/>
<br>
<button ng-click="add()">Add</button>
<p>{{data}}</p>
</div>
Controller code
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.data = 'none';
$scope.add = function(){
var f = document.getElementById('file').files[0],
r = new FileReader();
r.onloadend = function(e){
var binary = "";
var bytes = new Uint8Array(e.target.result);
var length = bytes.byteLength;
for (var i = 0; i < length; i++)
{
binary += String.fromCharCode(bytes[i]);
}
$scope.data = (binary).toString();
alert($scope.data);
}
r.readAsArrayBuffer(f);
}
}
Solution 22 - Angularjs
in simple words
in Html - add below code only
<form name="upload" class="form" data-ng-submit="addFile()">
<input type="file" name="file" multiple
onchange="angular.element(this).scope().uploadedFile(this)" />
<button type="submit">Upload </button>
</form>
in the controller - This function is called when you click "upload file button". it will upload the file. you can console it.
$scope.uploadedFile = function(element) {
$scope.$apply(function($scope) {
$scope.files = element.files;
});
}
add more in controllers - below code add into the function . This function is called when you click on button which is used "hitting the api (POST)". it will send file(which uploaded) and form-data to the backend .
var url = httpURL + "/reporttojson"
var files=$scope.files;
for ( var i = 0; i < files.length; i++)
{
var fd = new FormData();
angular.forEach(files,function(file){
fd.append('file',file);
});
var data ={
msg : message,
sub : sub,
sendMail: sendMail,
selectUsersAcknowledge:false
};
fd.append("data", JSON.stringify(data));
$http.post(url, fd, {
withCredentials : false,
headers : {
'Content-Type' : undefined
},
transformRequest : angular.identity
}).success(function(data)
{
toastr.success("Notification sent successfully","",{timeOut: 2000});
$scope.removereport()
$timeout(function() {
location.reload();
}, 1000);
}).error(function(data)
{
toastr.success("Error in Sending Notification","",{timeOut: 2000});
$scope.removereport()
});
}
in this case .. i added below code as form data
var data ={
msg : message,
sub : sub,
sendMail: sendMail,
selectUsersAcknowledge:false
};
Solution 23 - Angularjs
<form id="csv_file_form" ng-submit="submit_import_csv()" method="POST" enctype="multipart/form-data">
<input ng-model='file' type="file"/>
<input type="submit" value='Submit'/>
</form>
In angularJS controller
$scope.submit_import_csv = function(){
var formData = new FormData(document.getElementById("csv_file_form"));
console.log(formData);
$.ajax({
url: "import",
type: 'POST',
data: formData,
mimeType:"multipart/form-data",
contentType: false,
cache: false,
processData:false,
success: function(result, textStatus, jqXHR)
{
console.log(result);
}
});
return false;
}
Solution 24 - Angularjs
We have used HTML, CSS and AngularJS. Following example shows about how to upload the file using AngularJS.
<html>
<head>
<script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
</head>
<body ng-app = "myApp">
<div ng-controller = "myCtrl">
<input type = "file" file-model = "myFile"/>
<button ng-click = "uploadFile()">upload me</button>
</div>
<script>
var myApp = angular.module('myApp', []);
myApp.directive('fileModel', ['$parse', function ($parse) {
return {
restrict: 'A',
link: function(scope, element, attrs) {
var model = $parse(attrs.fileModel);
var modelSetter = model.assign;
element.bind('change', function(){
scope.$apply(function(){
modelSetter(scope, element[0].files[0]);
});
});
}
};
}]);
myApp.service('fileUpload', ['$http', function ($http) {
this.uploadFileToUrl = function(file, uploadUrl){
var fd = new FormData();
fd.append('file', file);
$http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
})
.success(function(){
})
.error(function(){
});
}
}]);
myApp.controller('myCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
$scope.uploadFile = function(){
var file = $scope.myFile;
console.log('file is ' );
console.dir(file);
var uploadUrl = "/fileUpload";
fileUpload.uploadFileToUrl(file, uploadUrl);
};
}]);
</script>
</body>
</html>
Solution 25 - Angularjs
Working Example using Simple Directive (ng-file-model):
.directive("ngFileModel", [function () {
return {
$scope: {
ngFileModel: "="
},
link: function ($scope:any, element, attributes) {
element.bind("change", function (changeEvent:any) {
var reader = new FileReader();
reader.onload = function (loadEvent) {
$scope.$apply(function () {
$scope.ngFileModel = {
lastModified: changeEvent.target.files[0].lastModified,
lastModifiedDate: changeEvent.target.files[0].lastModifiedDate,
name: changeEvent.target.files[0].name,
size: changeEvent.target.files[0].size,
type: changeEvent.target.files[0].type,
data: changeEvent.target.files[0]
};
});
}
reader.readAsDataURL(changeEvent.target.files[0]);
});
}
}
}])
and use FormData to upload file in your function.
var formData = new FormData();
formData.append("document", $scope.ngFileModel.data)
formData.append("user_id", $scope.userId)
all credits go for [https://github.com/mistralworks/ng-file-model][1]
I have faced a small probelm you can check it here: [https://github.com/mistralworks/ng-file-model/issues/7][2]
Finally,here's a forked repo: [https://github.com/okasha93/ng-file-model/blob/patch-1/ng-file-model.js][3]
[1]: https://github.com/mistralworks/ng-file-model "ng-file-model" [2]: https://github.com/mistralworks/ng-file-model "my-issue" [3]: https://github.com/okasha93/ng-file-model/blob/patch-1/ng-file-model.js "Forked Repo"
Solution 26 - Angularjs
The code will helps to insert file
<body ng-app = "myApp">
<form ng-controller="insert_Ctrl" method="post" action="" name="myForm" enctype="multipart/form-data" novalidate>
<div>
<p><input type="file" ng-model="myFile" class="form-control" onchange="angular.element(this).scope().uploadedFile(this)">
<span style="color:red" ng-show="(myForm.myFile.$error.required&&myForm.myFile.$touched)">Select Picture</span>
</p>
</div>
<div>
<input type="button" name="submit" ng-click="uploadFile()" class="btn-primary" ng-disabled="myForm.myFile.$invalid" value="insert">
</div>
</form>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="insert.js"></script>
</body>
insert.js
var app = angular.module('myApp',[]);
app.service('uploadFile', ['$http','$window', function ($http,$window) {
this.uploadFiletoServer = function(file,uploadUrl){
var fd = new FormData();
fd.append('file', file);
$http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
})
.success(function(data){
alert("insert successfull");
$window.location.href = ' ';//your window location
})
.error(function(){
alert("Error");
});
}
}]);
app.controller('insert_Ctrl', ['$scope', 'uploadFile', function($scope, uploadFile){
$scope.uploadFile = function() {
$scope.myFile = $scope.files[0];
var file = $scope.myFile;
var url = "save_data.php";
uploadFile.uploadFiletoServer(file,url);
};
$scope.uploadedFile = function(element) {
var reader = new FileReader();
reader.onload = function(event) {
$scope.$apply(function($scope) {
$scope.files = element.files;
$scope.src = event.target.result
});
}
reader.readAsDataURL(element.files[0]);
}
}]);
save_data.php
<?php
require "dbconnection.php";
$ext = pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION);
$image = time().'.'.$ext;
move_uploaded_file($_FILES["file"]["tmp_name"],"upload/".$image);
$query="insert into test_table values ('null','$image')";
mysqli_query($con,$query);
?>
Solution 27 - Angularjs
this works
file.html
<html>
<head>
<script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
</head>
<body ng-app = "app">
<div ng-controller = "myCtrl">
<input type = "file" file-model = "myFile"/>
<button ng-click = "uploadFile()">upload me</button>
</div>
</body>
<script src="controller.js"></script>
</html>
controller.js
var app = angular.module('app', []);
app.service('fileUpload', ['$http', function ($http) {
this.uploadFileToUrl = function(file, uploadUrl){
var fd = new FormData();
fd.append('file', file);
$http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
}).success(function(res){
console.log(res);
}).error(function(error){
console.log(error);
});
}
}]);
app.controller('fileCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
$scope.uploadFile = function(){
var file = $scope.myFile;
console.log('file is ' );
console.dir(file);
var uploadUrl = "/fileUpload.php"; // upload url stands for api endpoint to handle upload to directory
fileUpload.uploadFileToUrl(file, uploadUrl);
};
}]);
</script>
fileupload.php
<?php
$ext = pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION);
$image = time().'.'.$ext;
move_uploaded_file($_FILES["file"]["tmp_name"],__DIR__. ' \\'.$image);
?>
Solution 28 - Angularjs
UPLOAD FILES
<input type="file" name="resume" onchange="angular.element(this).scope().uploadResume()" ng-model="fileupload" id="resume" />
$scope.uploadResume = function () {
var f = document.getElementById('resume').files[0];
$scope.selectedResumeName = f.name;
$scope.selectedResumeType = f.type;
r = new FileReader();
r.onloadend = function (e) {
$scope.data = e.target.result;
}
r.readAsDataURL(f);
};
DOWNLOAD FILES:
<a href="{{applicant.resume}}" download> download resume</a>
var app = angular.module("myApp", []);
app.config(['$compileProvider', function ($compileProvider) {
$compileProvider.aHrefSanitizationWhitelist(/^\s*(https?|local|data|chrome-extension):/);
$compileProvider.imgSrcSanitizationWhitelist(/^\s*(https?|local|data|chrome-extension):/);
}]);
Solution 29 - Angularjs
app.directive('ngUpload', function () {
return {
restrict: 'A',
link: function (scope, element, attrs) {
var options = {};
options.enableControls = attrs['uploadOptionsEnableControls'];
// get scope function to execute on successful form upload
if (attrs['ngUpload']) {
element.attr("target", "upload_iframe");
element.attr("method", "post");
// Append a timestamp field to the url to prevent browser caching results
element.attr("action", element.attr("action") + "?_t=" + new Date().getTime());
element.attr("enctype", "multipart/form-data");
element.attr("encoding", "multipart/form-data");
// Retrieve the callback function
var fn = attrs['ngUpload'].split('(')[0];
var callbackFn = scope.$eval(fn);
if (callbackFn == null || callbackFn == undefined || !angular.isFunction(callbackFn))
{
var message = "The expression on the ngUpload directive does not point to a valid function.";
// console.error(message);
throw message + "\n";
}
// Helper function to create new i frame for each form submission
var addNewDisposableIframe = function (submitControl) {
// create a new iframe
var iframe = $("<iframe id='upload_iframe' name='upload_iframe' border='0' width='0' height='0' style='width: 0px; height: 0px;
border: none; display: none' />");
// attach function to load event of the iframe
iframe.bind('load', function () {
// get content - requires jQuery
var content = iframe.contents().find('body').text();
// execute the upload response function in the active scope
scope.$apply(function () { callbackFn(content, content !== "" /* upload completed */); });
// remove iframe
if (content != "") // Fixes a bug in Google Chrome that dispose the iframe before content is ready.
setTimeout(function () { iframe.remove(); }, 250);
submitControl.attr('disabled', null);
submitControl.attr('title', 'Click to start upload.');
});
// add the new iframe to application
element.parent().append(iframe);
};
// 1) get the upload submit control(s) on the form (submitters must be decorated with the 'ng-upload-submit' class)
// 2) attach a handler to the controls' click event
$('.upload-submit', element).click(
function () {
addNewDisposableIframe($(this) /* pass the submit control */);
scope.$apply(function () { callbackFn("Please wait...", false /* upload not completed */); });
var enabled = true;
if (options.enableControls === null || options.enableControls === undefined || options.enableControls.length >= 0) {
// disable the submit control on click
$(this).attr('disabled', 'disabled');
enabled = false;
}
$(this).attr('title', (enabled ? '[ENABLED]: ' : '[DISABLED]: ') + 'Uploading, please wait...');
// submit the form
$(element).submit();
}
).attr('title', 'Click to start upload.');
}
else
alert("No callback function found on the ngUpload directive.");
}
};
});
<form class="form form-inline" name="uploadForm" id="uploadForm"
ng-upload="uploadForm12" action="rest/uploadHelpFile" method="post"
enctype="multipart/form-data" style="margin-top: 3px;margin-left:
6px"> <button type="submit" id="mbUploadBtn" class="upload-submit"
ng-hide="true"></button> </form>
@RequestMapping(value = "/uploadHelpFile", method =
RequestMethod.POST) public @ResponseBody String
uploadHelpFile(@RequestParam(value = "file") CommonsMultipartFile[]
file,@RequestParam(value = "fileName") String
fileName,@RequestParam(value = "helpFileType") String
helpFileType,@RequestParam(value = "helpFileName") String
helpFileName) { }