Dropzone check if files names exists before processing queue - javascript

I am using dropzone for uploading files which I save with some meta data in a database in the backend.
When a user tries to upload a bulk of files I want to check if he has already uploaded a file with this name and warn him with an alert with an option to continue ot stop.
So I disabled the autoProcessQueue.
I am also listening for addedfile event, I get the name, I perform an ajax to check if it exists in the database and return true or false, good.
Let's say the user tries to upload 40 files which all already exist, I don't want 40 warnings that this file already exists, I want one notification printing all 40 filenames.
I was looking for addedfile but for multiple files, I didn't found a solution.
Here is my code for now
This is where I'm stuck
How can I know when I've checked every file ?
$(document).ready(function() {
#if(isset($checkRoute))
function filenameExists(name) {
$.ajax({
type: 'GET',
url: '{{ $checkRoute }}',
data: {
name: name
}
})
.done(function(res) {
// returns true or false
return res
})
.fail(function(err) {
console.log(err)
})
}
#endif
let existingFilenames = []
let fileCount = 0
$('#{{ $element_id }}').dropzone({
url: "{{ $upload }}", // Set the url for your upload script location
paramName: "documents", // The name that will be used to transfer the file
maxFiles: 100,
maxFilesize: 100, // MB
parallelUploads: 100,
timeout: 240000,
addRemoveLinks: true,
acceptedFiles: "application/msword, application/vnd.ms-excel, application/pdf, image/*, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, image/*",
uploadMultiple: true,
headers: {
'X-CSRF-TOKEN': "{{ csrf_token() }}"
},
init: function() {
#if(isset($checkRoute))
this.on('addedfile', function(file) {
console.log(this.getAcceptedFiles())
fileCount++
if (filenameExists(file.name)) {
console.log(file.name)
existingFilenames.push(file.name)
}
})
#endif
},
autoProcessQueue: false,
sendingmultiple: function (files) {
// Begin loading
KTApp.blockPage({
overlayColor: '#000000',
type: 'v2',
state: 'success',
message: '{{ __('documents_uploading') }}'
});
},
queuecomplete: function () {
// End loading
KTApp.unblockPage();
$.notify({
// options
message: '{{ __('documents_upload_success') }}'
}, {
// settings
type: 'success',
placement: {
from: "top",
align: "center"
},
animate: {
enter: 'animated fadeInDown',
exit: 'animated fadeOutUp'
},
});
window.location.replace("{{ $redirect }}");
}
});
});
Another thing that concerns me is how will I process the queue at the press of the button in the notification.

I had a similar problem as i wanted to provide the user with a dropdown of different upload directories on the server.
As each directory has a different ruleset of acceptedFiles, the static option acceptedFiles was out of the question.
Instead i used a combination of listening to the drop event on dropzone init and to "extend" the accept function:
The drop event gets the total number of files dropped and stores it in droppedFilesCounter. It also initializes/resets a global Object dzCustomFeedback and clears the "feedback" area from prior feedback.
The extended accept function, which is called for by each dropped file checks which upload directory is currently selected and compares the current file extension against the configured accepted ones.
If there is a match the done() function "bubbles" an "all clear".
Otherwise the file is removed from the preview list (or actually never makes it into it) and the global dzCustomFeedback Object cumulates error-messages of the type invalidFileTypes for all files accordingly.
Once all files have been run through the accept function (droppedFilesCounter == 0) and some feedback messages have been prepared the prepareFeedback function is called, which basically populates a jQuery <div> container with the cumulated content of dzCustomFeedback.
init: function() {
var myDropzone = this;
myDropzone.on("drop", function(event) {
if(typeof event.dataTransfer.files == 'object')
{
droppedFilesCounter = event.dataTransfer.files.length;
}
dzCustomFeedback = {};
jQuery('#dz-feedback').empty();
});
},
accept: function(file, done) {
/ * Erweiterung der vordefinierten accept Function * /
customTypeSelector = document.getElementById("selectUploadFolder");
var currentAcceptedFiles = customTypeAcceptedFiles[customTypeSelector.options[customTypeSelector.selectedIndex].value]
var currentFileExtension = file.name.split(".").pop()
droppedFilesCounter--;
if (typeof customTypeAcceptedFiles[customTypeSelector.options[customTypeSelector.selectedIndex].value] == "object"
&&
jQuery.inArray(currentFileExtension, currentAcceptedFiles["extensions"] ) >= 0) {
//accepted file
done();
}
else {
//Unaccepted file revert
this.removeFile(file);
if(typeof dzCustomFeedback["invalidFileTypes"] == "undefined")
{
dzCustomFeedback["invalidFileTypes"] = {
"msg": [
uploadDndConf["textElements"]["invalidFileTypesUploadFolder"].replace("{{uploadFolder}}", currentAcceptedFiles["label"])
, currentAcceptedFiles["extensions"].join()
]
, "type": "error"
, "filesIgnored": {} };
}
dzCustomFeedback["invalidFileTypes"]["filesIgnored"][file.name] = file;
done(this.options.dictInvalidFileType);
}
if(droppedFilesCounter == 0 && !jQuery.isEmptyObject(dzCustomFeedback))
{
prepareFeedback(dzCustomFeedback);
}
},

Related

Can't implement dropzone.js to an existing form

I'm trying to implement the dropzone.js to my existing form, which has a lot of input fields, select options, etc. I tried to follow this answer: https://stackoverflow.com/a/35275260/13695248 but all I earned is if I press the send button, literally nothing happens. No error or anything, it just doesn't do anything. I've got a lot of help from #Swati so I have some extra functions in the dropzone options, but I don't think it causes the problem.
This is how the html looks like:
<form action="upload.php" method="post" enctype='multipart/form-data' id="add">
<div class="dropzone" id="uploader"></div>
<input type="text" id="mainimage" name="mainimage">
<!-- lot of input fields here -->
<input type="submit" class="btn btn-primary btn-xl" id="sendButton" name="upload" value="Send" />
</form>
and the JS part:
Dropzone.options.uploader = {
url: 'upload.php',
autoProcessQueue: false,
uploadMultiple: true,
paramName: "images", // The name that will be used to transfer the file
maxFilesize: 2, // MB
maxFiles: 5,
addRemoveLinks: true,
acceptedFiles: 'image/*',
accept: function(file) {
let fileReader = new FileReader();
fileReader.readAsDataURL(file);
fileReader.onloadend = function() {
$('<a>', {
class: 'primary',
text: "Legyen ez a fő kép",
href: "#"
}).appendTo(file.previewElement)
//file.previewElement.append($textContainer)
console.log(file.previewElement)
file.previewElement.classList.add("dz-success");
if (($(".dz-success.dz-complete").length > 0) && ($(".main").length == 0)) {
$(".dz-success.dz-complete:first .primary").text("Fő kép")
//add class to first one
$(".dz-success.dz-complete:first").addClass("main")
$("#mainimage").val($(".dz-success.dz-complete:first").find(".dz-filename span").text()) //add default name to imgs input
}
}
file.previewElement.classList.add("dz-complete");
},
"error": function(file, message, xhr) {
if (xhr == null) this.removeFile(file);
alert(message);
},
removedfile: function(file) {
var is_there = file.previewElement.classList.contains("main");
console.log(is_there)
file.previewElement.remove();
if (is_there && $(".dz-success.dz-complete").length > 0) {
$(".dz-success.dz-complete .primary").text("Legyen ez a fő kép")
$(".dz-success.dz-complete:first .primary").text("Fő kép")
$(".dz-success.dz-complete:first").addClass("main")
$("#mainimage").val($(".dz-success.dz-complete:first").find(".dz-filename span").text()) //add default name to imgs input
}
if ($(".dz-success.dz-complete").length == 0) {
$("#mainimage").val("")
}
},
init: function() {
dzClosure = this; // Makes sure that 'this' is understood inside the functions below.
// for Dropzone to process the queue (instead of default form behavior):
document.getElementById("sendButton").addEventListener("click", function(e) {
// Make sure that the form isn't actually being sent.
e.preventDefault();
e.stopPropagation();
dzClosure.processQueue();
});
//send all the form data along with the files:
this.on("sendingmultiple", function(data, xhr, formData) {
$(":input[name]", $("form")).each(function() {
formData.append(this.name, $(':input[name=' + this.name + ']', $("form")).val());
});
});
},
dictDefaultMessage: 'Kérjük húzza ide a képeket vagy kattintson a tallózáshoz!',
dictFallbackMessage: 'Böngészője nem támogatja a kép előnézetet!',
dictFallbackText: 'Kérjük használja a tallózást a képek kiválasztásához!',
dictFileTooBig: 'A fájl mérete túl nagy. ({{filesize}}MiB). Maximum {{maxFilesize}}MiB lehet!',
dictInvalidFileType: 'A kiválasztott fájl kiterjesztése nem megfelelő!',
dictResponseError: 'A szerver {{statusCode}} kóddal válaszolt. Kérjük próbálja meg később!',
dictCancelUpload: 'Feltöltés visszavonása',
dictUploadCanceled: 'feltöltés visszavonva!',
dictCancelUploadConfirmation: 'Biztosan visszavonja a feltöltést?',
dictRemoveFile: 'Kép törlése',
dictMaxFilesExceeded: 'Elérte a maximálisan feltölthető képek számát!'
};
$(document).on("click", ".primary", function() {
$(".dz-success.dz-complete.main .primary").text("Legyen ez a fő kép")
$(this).text("Fő kép")
$(".dz-success.dz-complete").removeClass("main")
$(this).closest(".dz-success.dz-complete").addClass("main")
$("#mainimage").val($(this).closest(".dz-success.dz-complete").find(".dz-filename span").text())
})
I think this init function ruins it, because if I delete it, the button works fine but the data doesn't go to the database
init: function() {
dzClosure = this; // Makes sure that 'this' is understood inside the functions below.
// for Dropzone to process the queue (instead of default form behavior):
document.getElementById("sendButton").addEventListener("click", function(e) {
// Make sure that the form isn't actually being sent.
e.preventDefault();
e.stopPropagation();
dzClosure.processQueue();
});
//send all the form data along with the files:
this.on("sendingmultiple", function(data, xhr, formData) {
$(":input[name]", $("form")).each(function() {
formData.append(this.name, $(':input[name=' + this.name + ']', $("form")).val());
});
});
}
I had to add 'done' to the accept function:
accept: function(file, done) {
.
.
done();
}

How to get/print file name after successful upload in plupload ui

I do not have much knowledge in javascript. I am trying to get and print file name in a input box after a successful upload event. I'm using plupload ui widget. the below script works fine, I can upload files but I cant get file name after the upload finishes. I have googled a lot but couldn't get it working.
here is the code I'm using..
// Initialize the widget when the DOM is ready
$(function() {
$("#uploader").plupload({
// General settings
runtimes : 'html5,flash,silverlight,html4',
url : 'upload.php',
// User can upload no more then 20 files in one go (sets multiple_queues to false)
max_file_count: 20,
chunk_size: '1mb',
filters : {
// Maximum file size
max_file_size : '10mb',
// Specify what files to browse for
mime_types: [
{title : "Image files", extensions : "jpg,gif,png"},
{title : "Zip files", extensions : "zip"}
]
},
// Rename files by clicking on their titles
rename: true,
// Sort files
sortable: true,
// Enable ability to drag'n'drop files onto the widget (currently only HTML5 supports that)
dragdrop: true,
prevent_duplicates: true,
// Views to activate
views: {
list: true,
thumbs: true, // Show thumbs
active: 'thumbs'
},
// Flash settings
flash_swf_url : 'js/Moxie.swf',
// Silverlight settings
silverlight_xap_url : 'js/Moxie.xap'
});
uploader.bind('FileUploaded' , function(up, file, response ) {
if ( (Uploader.total.uploaded + 1) == Uploader.files.length)
{
alert(File.name);
};
})
// Handle the case when form was submitted before uploading has finished
$('form').submit(function(e) {
var uploader = $('#uploader').plupload('getUploader');
// Files in queue upload them first
if (uploader.files.length > 0) {
// When all files are uploaded submit form
uploader.bind('StateChanged', function() {
if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
$('form')[0].getlink();
}
});
uploader.start();
} else {
alert("You must have at least one file in the queue.");
}
return false; // Keep the form from submitting
});
});
You have a faulty conditional in your FileUploaded handler:
if ( (Uploader.total.uploaded + 1) == Uploader.files.length)
Why Uploader.total.uploaded + 1? It will never get fulfilled.
Also Plupload UI widget has it's own syntax for attaching handlers to the events.
// Subscribing to the events...
// ... on initialization:
$('#uploader').plupload({
...
viewchanged: function(event, args) {
// stuff ...
}
});
// ... or after initialization
$('#uploader').on("viewchanged", function(event, args) {
// stuff ...
});
Consider the following playground sample.

Dropzone remove all file except first file

Just simple ask, I have code like this on JavaScript on dropzone
addRemoveLinks: true,
maxFiles: 1,
init: function() {
this.on("maxfilesexceeded", function(file) {
swal("Error", "U just can upload 1 file", "warning");
});
}
Well is kind a work the file not upload if I have a file, but that file (not first one) still show even they not uploaded, I need to remove all file (not first one) automatic if they didn't upload or get alert. How can I did that???
You can call the removeFile() method, also if you want the thumbnail to show for a moment with the message you can add a timeout:
Dropzone.options.myAwesomeDropzone = {
maxFiles: 1,
dictMaxFilesExceeded: "U just can upload 1 file",
init: function () {
var myDropzone = this;
this.on("maxfilesexceeded", function(file) {
setTimeout(function() {
myDropzone.removeFile(file);
}, 3000);
});
},
};

Integrating Dropzone.js with angular

I am working from some code that integrated DropboxJS as an angular directive. I cannot get it to work. I've taken his fiddle and updated it with current CDN links. Any idea why the directive code never fires? For ex if I drop an image it will go to /upload instead of /desiredupload and the event doesn't fire.
Fiddle: http://jsfiddle.net/cyberwombat/3tDqZ//1/
angular.module('dropZone', [])
.directive('dropZone', function() {
return function(scope, element, attrs) {
element.dropzone({
url: "/desiredupload",
maxFilesize: 100,
paramName: "uploadfile",
maxThumbnailFilesize: 5,
init: function() {
this.on("addedfile", function(file) {
alert("Added file."); });
}
});
}
});
angular.module('dropZone', [])
.controller('dropZoneCtrl', function() {});
Additionally and unfortunately I cannot replicate in my fiddle - on my local code I get this error: Object [object Object] has no method 'dropzone'
I am loading dropzone, then angular (tried the the other way) then my app, directives, etc.. so I don't think order is an issue. Dropzone successfully detects the form and makes it DnD but my directive element doesn't seem to have dropz
This is how I do it:
.directive('dropZone', function () {
return {
scope: {
action: "#",
autoProcess: "=?",
callBack: "&?",
dataMax: "=?",
mimetypes: "=?",
message: "#?",
},
link: function (scope, element, attrs) {
console.log("Creating dropzone");
// Autoprocess the form
if (scope.autoProcess != null && scope.autoProcess == "false") {
scope.autoProcess = false;
} else {
scope.autoProcess = true;
}
// Max file size
if (scope.dataMax == null) {
scope.dataMax = Dropzone.prototype.defaultOptions.maxFilesize;
} else {
scope.dataMax = parseInt(scope.dataMax);
}
// Message for the uploading
if (scope.message == null) {
scope.message = Dropzone.prototype.defaultOptions.dictDefaultMessage;
}
element.dropzone({
url: scope.action,
maxFilesize: scope.dataMax,
paramName: "file",
acceptedFiles: scope.mimetypes,
maxThumbnailFilesize: scope.dataMax,
dictDefaultMessage: scope.message,
autoProcessQueue: scope.autoProcess,
success: function (file, response) {
if (scope.callBack != null) {
scope.callBack({response: response});
}
}
});
}
}
})
An example usage of this would be:
<div action="/file/upload/" class="dropzone" drop-zone
call-back="myCallBackMethod(response)"
data-max="5"
auto-process="false"
message="Drop file here or click to select"
mimetypes=".doc,.docx,.pages,.pdf,.odt"
id="file-dropzone">
</div>
Any scope variable that has a ? next to it is optional. The only required field is action, which would be the URL to send post to.
$(element).dropzone({
url: "/desiredupload",
maxFilesize: 100,
paramName: "uploadfile",
maxThumbnailFilesize: 5,
init: function() {
this.on("addedfile", function(file) {
alert("Added file."); });
}
});
Wrap element with $(...). In AngularJS it says all DOM elements are JQuery object but I think you might be using a older version of AngularJS.

filter files in Blueimp/ jQuery-File-Upload

I am trying to use Blueimp / jQuery-File-Upload my project and I want to test the file extension because I only want to download photos
someone show me where and how I should configure blueimp / jQuery-File-Upload so I can do this
As stated in the documentation you can simply set the options to a regex for the file type like that:
$('#fileupload').fileupload('option', {
url: '//localhost/',
maxFileSize: 5000000,
acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
process: [
{
action: 'load',
fileTypes: /^image\/(gif|jpeg|png)$/,
maxFileSize: 20000000 // 20MB
},
{
action: 'resize',
maxWidth: 1440,
maxHeight: 900
},
{
action: 'save'
}
]
});
I found this add method
So, here is my code for .gpx files:
$('#fileupload').fileupload({
// your fileupload options
add:function(e,data){
data.files.map(function(i){
if(i.type!='application/gpx+xml'){
alert('please upload only .gpx files');
}else{
data.submit();
}
}),
process: function(e,data){/* your process actions here */}
});
Your can use the method add for filter files:
var $input = $('#upload_input');
$input.fileupload({
fileInput: $input,
url: 'YOU_URL',
// Other options...
start: function(e, data) {
// Before start upload... Please wait...
},
add: function(e, data) {
types = /(\.|\/)(gif|jpe?g|png)$/i;
file = data.files[0]
if (types.test(file.type) || types.test(file.name)) {
data.submit();
} else {
// alert('Unfortunately, we don’t support that file type. Try again with a PNG, GIF, JPG');
return;
}
},
done: function(e, data) {
// After upload... alert('Done');
},
fail: function(e, data) {
// Error. Please try again later...
}
});

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