I am tring to download a file, via ajax call.
It should process every 20secs.
If file present it will get downloaded and shall stop the futher ajax call, else same ajax should be processed till file is downloaded.
Below is what i have tried
$.ajax({
url: baseUrl + '/ajax/exportStudentInformation',
data: {
'studentId' : studentId
},
type: "post",
success: function(response) {
setTimeout(function () {
timeIntervalDownLoadFile = downloadFile(studentname);
}, 60000);
},
error: function(){
alert('There was error in processing csv file, please try again');
}
});
This is the function that needs to check if the file is present on the cloud and download it.
downloadFile: function(studentname) {
$.ajax({
url: baseUrl + '/ajax/downloadFile',
data: {
'studentname': studentname
},
'type': 'POST',
error: function(jqXHR, status, error) {
alert('There was error in downloading file, please try again!!!');
},
abort: function(jqXHR, status, error) {
},
beforeSend: function() {
var message = "The file is being downloaded, please wait";
$('#alertBar').html("<div class=\"alert alert-info\" >"+message+"<a class=\"close\">×</a></div>")
$("#alertBar").fadeTo(2000, 500).slideUp(500, function(){
$("#alertBar").slideUp(500);
});
},
success: function(response) {
if (response.status) {
window.location.href = "https://urlwhereFileisStoredOnCloud/"+response.filename;
} else {
var message = "File does not exist, please use export to generate file";
$('#alertBar').html("<div class=\"alert alert-danger\" >"+message+"<a class=\"close\">×</a></div>")
$("#alertBar").fadeTo(2000, 500).slideUp(500, function(){
$("#alertBar").slideUp(500);
});
$("html, body").animate({ scrollTop: $('#alertBar').offset().top }, 1000);
}
},
});
},
I have used set interval of jquery to call the second function time after delay. but it does not stops once the file download popup is shown. Any help will be apprciated.
Related
I try to create upload photos in my nodejs site.
I used this code to choose file and upload the image:
var fileData = null;
function loadFile() {
var preview = document.querySelector('file');
var file = document.querySelector('input[type=file]').files[0];
var reader = new FileReader();
reader.onloadend = function () {
fileData = file;
}
if (file) {
reader.readAsDataURL(file);
}
}
function uploadFile() {
data = new FormData();
data.append('file', fileData);
$.ajax({
url: "/post_pdf/",
type: "POST",
data: data,
enctype: 'multipart/form-data',
processData: false,
contentType: false,
success: function(data) {
document.getElementById("result").innerHTML = 'Result: Upload successful';
},
error: function(e) {
document.getElementById("result").innerHTML = 'Result: Error occurred: ' + e.message;
}
});
}
With loadfile funcion i choose my image, and with Uploadfile function i upload the image with ajax.
if i use it alone its work perfect and upload the image to the location.
but when i try to add this code to my code, it make alot of errors.
in my code i send to back end all the forms in the pug file:
$('#account-form').ajaxForm({
error : function(e){
if (e.responseText == 'title-empty'){
av.showInvalidTitle();
}
},
success : function(responseText, status, xhr, $form){
if (status == 'success')
{
$('.modal-alert').modal('show');
console.log(responseText)
}}
});
i try to merge the ajaxform with the ajax but when i merege the formdata or i send in ajaxform the data of the file is send error.
how can i merge the codes?
thanks for helping.
Try to submit form it will submit form with your image.
let form = $("#form_id");
$.ajax({
url : $(form).attr("action"),
type: "POST",
dataType: "json",
processData: false,
contentType: false,
cache: false,
data: new FormData(form[0]),
success:function(data){
},
error: function (xhr, status, e) {
}
});
#Yogesh Patel
when i use this code:
$('#account-form-btn2').on('click', function(e) {
let form = $("#account-form");
$.ajax({
url: $(form).attr("action"),
type: "POST",
dataType: "json",
processData: false,
contentType: false,
cache: false,
data: new FormData(form[0]),
error: function (e) {
if (e.responseText == 'title-empty') {
av.showInvalidTitle();
}
},
success: function (responseText, status, xhr, $form) {
if (status == 'success') {
$('.modal-alert').modal('show');
}
}
});
});
for some reason it sends the values to "routes" three times.
and it doesn't catch the erorrs or success.
and it sends me to a white window with the value of the callback.
if needed, i can send the function that gets the values and returns them (app.post).
In my kendo dataSource > transport > update. I want to catch a server response status (refer image), but none of this methods trigger an alert. Any idea why?
update: {
url: "./getRevenueAccounts.php",
type: "POST",
data: function() {
return {
method: "editRevenueAccounts"
}
},
success: function(e) {
if(e.status == 'duplicate'){
alert('Trigger 1');
}
},
error: function(e) {
if (e.errorThrown == 'duplicate') {
alert("Trigger 2");
}else if(e.status == 'duplicate' ){
alert("Trigger 3")
}
},
complete: function (e) {
if(e.status == 'duplicate'){
alert('Trigger 4');
}
}
},
console.log(e) screen shot
Try the following code for your success function:
success: function(e) {
if(e.responseText.status == 'duplicate'){
alert('Trigger 1');
}
},
Essentially, you are looking at the status property when you should have been looking at the responseText property to get the status (which is another property on that object).
You need to make an ajax call inside the update function.
Like:
var dataSource = new kendo.data.DataSource({
transport: {
read: function(options) {
/* implementation omitted for brevity */
},
update: function(options) {
// make JSONP request to https://demos.telerik.com/kendo-ui/service/products/update
$.ajax({
url: "https://demos.telerik.com/kendo-ui/service/products/update",
dataType: "jsonp", // "jsonp" is required for cross-domain requests; use "json" for same-domain requests
// send the updated data items as the "models" service parameter encoded in JSON
data: {
models: kendo.stringify(options.data.models)
},
success: function(result) {
// notify the data source that the request succeeded
options.success(result);
},
error: function(result) {
// notify the data source that the request failed
options.error(result);
}
});
}
},
batch: true,
schema: {
model: { id: "ProductID" }
}
});
For more details please check this from telerik documentation: https://docs.telerik.com/kendo-ui/api/javascript/data/datasource/configuration/transport.update
Is not a good method to apply, but it works to fetch the response.
if(e.responseText=='{"status":"duplicate"}'){
kendo.alert('duplicate data');
}
if(myData)
{
$('.overlay_content').html('<img src="'+baseurl+'resource/img/loading.gif" width="30"> LOADING');
$('#loader_overlay').fadeIn(100);
$.ajaxFileUpload({
url:baseurl+"invoice_settings/manage/post_settings/",
secureuri :false,
fileElementId :'invoice_logo',
dataType : 'JSON',
data : myData,
success : function (data)
{
var data = $.parseJSON(data);
$('.overlay_content').html('<img src="'+baseurl+'resource/img/tick.jpg" width="30"> Updation Successfull<br/>');
$('#loader_overlay').fadeOut(5000);
$("#settings_form").data('bootstrapValidator').resetForm();
}
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) {
s.error.call( s.context || window, xhr, status, e );
}
// Fire the global callback
if ( s.global ) {
(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
}
}
});
}
This is my js file. when I run my page the data is not uploading and it returns uncaught syntax error. I added handle error function after getting the error "jQuery.handleError is not a function". After adding handleError function now its returning this error.please help me
There are plenty of answer available over internet. whenever you stuck do initial workaround as suggested.
How to use ajax in codeigniter: https://www.formget.com/codeigniter-jquery-ajax-post/
Sample code:
$('form').on('submit', uploadFiles);
// Catch the form submit and upload the files
function uploadFiles(event)
{
event.stopPropagation(); // Stop stuff happening
event.preventDefault(); // Totally stop stuff happening
// START A LOADING SPINNER HERE
// Create a formdata object and add the files
var data = new FormData();
$.each(files, function(key, value)
{
data.append(key, value);
});
$.ajax({
url: 'submit.php?files',
type: 'POST',
data: data,
cache: false,
dataType: 'json',
processData: false, // Don't process the files
contentType: false, // Set content type to false as jQuery will tell the server its a query string request
success: function(data, textStatus, jqXHR)
{
if(typeof data.error === 'undefined')
{
// Success so call function to process the form
submitForm(event, data);
}
else
{
// Handle errors here
console.log('ERRORS: ' + data.error);
}
},
error: function(jqXHR, textStatus, errorThrown)
{
// Handle errors here
console.log('ERRORS: ' + textStatus);
// STOP LOADING SPINNER
}
});
}
I have a problem with my dropzone,
$(".js-example-basic-multiple").select2();
Dropzone.options.dropZone = {
//options here
maxFilesize: 2,
addRemoveLinks: true,
removedfile: function(file) {
var name = file.name;
$.ajax({
type: 'POST',
url: host+'upload/unfile',
data: "id="+name,
dataType: 'html'
});
var _ref;
return (_ref = file.previewElement) != null ? _ref.parentNode.removeChild(file.previewElement) : void 0;
//console.log();
},
init: function() {
this.on("maxfilesexceeded", function(file){
alert("No more files please!");
});
}
}
My problem is, when a file fails to upload, it still shows the preview images, so i need that file to be removed automatically when these file fails to upload, how can I do that??
I think, if I understand you correctly, you can just delete the image with this code:
Dropzone.options.dropZone = {
...
, error: function(file, message, xhr) {
$(file.previewElement).remove();
},
...
}
Just read the documentation again.
This code is from the docs:
myDropzone.on("error", function(file) {
myDropzone.removeFile(file);
});
Please let me know, if it works in your case.
When connect error is "xhr.ontimeout", function "error:" don't run.
I need (paste next to "init:"):
sending: function(file, xhr, formData) {
//Execute on case of timeout only
xhr.ontimeout = function(e) {
alert('connection interrupted');
};
}
I know there's other post about this. but there's no answer.
Situation, I have an ajax command. It take time because I have somes things to get.
I want to include a loading between the execution of the ajax.
I want to use jquery BlockUI because its simple and good looking.
But I dont know why the visual effect not working until ajax load the entire data(like when "success" begin).
I try multiple way but not working.
here's my last code :
function from http://www.codeproject.com/Articles/382390/An-Example-to-Use-jQuery-Global-AJAX-Event-Handler
var AjaxGlobalHandler = {
Initiate: function(options) {
$.ajaxSetup({ cache: false });
// Ajax events fire in following order
$(document).ajaxStart(function() {
$.blockUI({
message: options.AjaxWait.AjaxWaitMessage,
css: options.AjaxWait.AjaxWaitMessageCss
});
}).ajaxSend(function(e, xhr, opts) {
}).ajaxError(function(e, xhr, opts) {
if (options.SessionOut.StatusCode == xhr.status) {
document.location.replace(options.SessionOut.RedirectUrl);
return;
}
$.colorbox({ html: options.AjaxErrorMessage });
}).ajaxSuccess(function(e, xhr, opts) {
}).ajaxComplete(function(e, xhr, opts) {
}).ajaxStop(function() {
$.unblockUI();
});
}
};
call ready
var options = {
AjaxWait: {
AjaxWaitMessage: '<h1 class="ui-overlay-loading-content"><img class="ui-overlay-loading-image" src="_inc/img/loading3circle1.gif" />Chargement des données ...</h1>',
AjaxWaitMessageCss: { backgroundColor: '#ffffff' }
},
AjaxErrorMessage: "<h6>Erreur!/h6>"
};
AjaxGlobalHandler.Initiate(options);
call execution
$.ajax({
type: "POST",
url: location.href.split('/').pop() + "?action=" + actionName + "&recherche=" + recherche,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(response) {
FillDataGridOnSuccess(response, gridId, dataTypeName);
},
error: function(xhr, ajaxOptions, thrownError) {
alert("xhr.status : " + xhr.status);
alert("thrownError : " + thrownError);
}
});
I try also
var ajaxSettings = function(options) {
return $.extend(
{
beforeSubmit: function() {
//beforeSend: function() {
$.blockUI({ overlayCSS: { backgroundColor: '#ffffff' },
message: '<h1 class="ui-overlay-loading-content"><img class="ui-overlay-loading-image" src="_inc/img/loading3circle1.gif" />Chargement des données ...</h1>'
});
},
complete: function() {
$.unblockUI();
}
},
options
);
};
Every test that I did end with a loading who seems to only appear on ajaxSuccess.
I know there's sample on official blockUI site http://jquery.malsup.com/block/#demos
and they working there, but I cant on my own. did anybody see why?
tank you