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GetEvents from FullCalendar

I'm working with Full Calendar I want to create a button that take all the events from the calendar and send them to my database. But when trying to call the getEvents method referenced here from the calendar object, I cannot get it to work. The method doesn't seem to exist. I get undefined method.
Below is a snippet of the initialization of the calendar.
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
headerToolbar: {
left: 'prev,next today',
center: 'title',
right: 'dayGridMonth,timeGridWeek,timeGridDay'
},
initialDate: '2020-09-12',
navLinks: true, // can click day/week names to navigate views
selectable: true,
selectMirror: true,
select: function(arg) {
var title = prompt('Event Title:');
if (title) {
calendar.addEvent({
title: title,
start: arg.start,
end: arg.end,
allDay: arg.allDay
})
}
calendar.unselect()
},
eventClick: function(arg) {
if (confirm('Are you sure you want to delete this event?')) {
arg.event.remove()
}
},
editable: true,
dayMaxEvents: true, // allow "more" link when too many events
events: [
{
title: 'All Day Event',
start: '2020-09-01'
},
{
title: 'Long Event',
start: '2020-09-07',
end: '2020-09-10'
},
{
groupId: 999,
title: 'Repeating Event',
start: '2020-09-09T16:00:00'
},
{
groupId: 999,
title: 'Repeating Event',
start: '2020-09-16T16:00:00'
},
{
title: 'Conference',
start: '2020-09-11',
end: '2020-09-13'
},
{
title: 'Click for Google',
url: 'http://google.com/',
start: '2020-09-28'
}
]
});
calendar.render();
I use the last version of Full Calendar (v5)
When I try to create a button that will get the calendar then retrieve all the events and send it to my database I get error saying that the function doesn't exist.
Here is how I do that :
var calendar = document.getElementById("calendar");
/* I can do that since I have my calendar with the id "calendar"
And then I try use the getEvents function
*/
var events = calendar.getEvents();
/* Show undefined */
<div id="calendar"></div>
Super Important Note: I realized that the function doesn't exist since I try to apply it to the HTML element and not the FullCalendar JS object. So my question is how can I get a FullCalendar JS Object from the HTML element in order to retrieve the events that the user has saved ??

Your problem is because var calendar = document.getElementById("calendar"); fetches the HTML element into which the rest of the calendar's HTML was added by fullCalendar. It does not fetch the fullCalendar instance which was generated by new FullCalendar.Calendar when you intialised the calendar. It's the latter which exposes the functions to manipulate the calendar or get data from it.
Notice how you already use that object in your code to call fullCalendar's render function, e.g. calendar.render();.
(The HTML element object just contains standard functions found on any HTML element, not anything specific to fullCalendar.)
So in summary you need to use the calendar variable you created from the new FullCalendar... instantiation. If you need access to that outside the scope it was originally declared in (which is the callback of the DOMContentLoaded event handler), then one way round that is to make it a global variable, e.g.
var calendar; //global variable
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
calendar = new FullCalendar.Calendar(calendarEl, {
....
});
calendar.render();
});
Then somewhere else in your code, wherever you need it, you can write
var events = calendar.getEvents();

FullCalendar not showing extraParams

I am having some problems retrieving these from my string
here is my script, taken from the website..
events: {
url: '/CalendarManager/Findall',
method: 'GET',
extraParams: {
custom_param1: 'customerName',
custom_param2: 'description'
},
failure: function () {
alert('there was an error while fetching events!');
},
eventRender: function (event, element) {
element.qtip({
content: event.custom_param1,
content: event.custom_param2
});
}
},
UPDATE: 12/24/2020
To answer questions below.. I am using 5.3.2 version. I can use this as well and it will bring back everything but the custom parameters.
events: '/CalendarManager/Findall',
I am using Json pulling from DB - Below is the code..
public ActionResult FindAll()
{
return Json(db.GetEvents.AsEnumerable().Select(e => new
{
id = e.CompanyId,
companyName = e.CompanyName,
title = e.Title,
description = e.Description,
allDay = e.AllDay,
start = e.StartDate.ToString("yyyy-MM-ddTHH:mm:ss"),
end = e.EndDate.ToString("yyyy-MM-ddTHH:mm:ss"),
color = e.Color
}).ToList(), JsonRequestBehavior.AllowGet);
}
I changed the version I was using and that is when the extras did not show up. So I added what I thought the documentation said to use.
Adding the extra Params after the url did not work..
UPDATE:
I read through the suggested. I guess I am still not understanding or maybe not getting "Where I am supposed to put the code".
I believe I need to use eventContent. I also did use the console.log(info.event.extendedProps.companyName); Which is great, it does show up in the console window, However i need it on the calendar not in the console window. FullCalendar's examples could be a little better!
Here is what I did but still does not show on the calendar.
eventDidMount: function (info) {
var tooltip = new Tooltip(info.el, {
title: info.event.extendedProps.description,
placement: 'top',
trigger: 'hover',
container: 'body'
});
console.log(info.event.extendedProps.companyName);
},
eventSources: [{
url: '/CalendarManager/Findall',
failure: function () {
alert('there was an error while fetching events!');
},
}],
eventContent: function (arg) {
html: arg.event.extendedProps.companyName
}
I did add some stuff in there to produce just a bubble when hovered over with this info but it does not work either.
Thank You!
UPDATE: 12/27/2020 Working Code
var calendar = new FullCalendar.Calendar(calendarEl, {
headerToolbar: {
left: 'prevYear,prev,next,nextYear today',
center: 'title',
right: 'dayGridMonth,dayGridWeek,dayGridDay,listWeek'
},
initialView: 'dayGridMonth',
navLinks: true, // can click day/week names to navigate views
editable: true,
dayMaxEvents: true, // allow "more" link when too many events
themeSystem: 'bootstrap',
selectable: true,
selectMirror: true,
//Random default events
//events: '/CalendarManager/Findall',
eventDidMount: function (info) {
var tooltip = new Tooltip(info.el, {
title: info.event.extendedProps.description,
placement: 'top',
trigger: 'hover',
container: 'body'
});
console.log(info.event.extendedProps.companyName);
},
events: {
url: '/CalendarManager/Findall',
failure: function () {
alert('there was an error while fetching events!');
},
},
eventContent: function (arg) {
return { html: arg.event.title + '<br>' + arg.event.extendedProps.companyName + '<br>' + arg.event.extendedProps.description };
}
});
calendar.render();
Thank you for all your help!

First, let me know what kind of version of fullcalendar you are using.
fullcalendar v5.5 doesn't provide eventRender.
And extraParams is not what you want to show. It is the query params which attach after the request url, like http://example.com/CalendarManager/Findall?custom_param1=customerName&....
If you want to use extend event props then you should parse them as extendProps.
And you should use Event Render Hooks rather than eventRender if you are using the latest version.
How to fix:
Anyway, you should use function, not an object.
You can use events (as a function)
function( fetchInfo, successCallback, failureCallback ) { }
You can also use events (as a json feed)
var calendar = new Calendar(calendarEl, {
events: '/myfeed.php'
});
If you are going to use object rather than function, then you can use eventSources
And if you want to handle the success response, then use eventSourceSuccess function
Here is an example (using fullcalendar v5.5):
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
initialView: 'listWeek',
loading: function(bool) {
if (bool) {
$("#dashboard-calendar-column .pre-loader").show();
} else {
$("#dashboard-calendar-column .pre-loader").hide();
}
},
// get all events from the source
eventSources: [{
url: '/CalendarManager/Findall',
method: 'GET',
failure: function() {
document.getElementById('script-warning').style.display = 'block'
}
}],
// convert the response to the fullcalendar events
eventSourceSuccess: function(content, xhr) {
var events = [];
content.events.value.map(event => {
events.push({
id: event.id,
allDay: event.isAllDay,
title: event.subject,
start:event.start.dateTime,
end: event.end.dateTime,
// The followings are what you want to add as extended
custom_param1: 'customerName',
custom_param2: 'description',
// Or you could add them to the extendedProps object
extendedProps: {
custom_param1: 'customerName',
custom_param2: 'description',
description: event.bodyPreview,
...
},
// You can check fullcalendar event parsing
...
})
})
return events;
},
eventDidMount: function (arg) {
// remove dot between the event titles
$(arg.el).find('.fc-list-event-graphic').remove();
// You can select the extended props like arg.event.custom_param1 or arg.event.extendProps.custom_param1
...
},
});
calendar.render();
})
Hope this would help you.

You can use extraParams using eventSources if you are using fullcalendar v5.
eventSources: [{
url: '/CalendarManager/Findall',
method: 'POST',
extraParams: {
custom_param1: 'customerName',
custom_param2: 'description'
}
...
}]
You should use POST rather use GET, then it will work.

fullcalendar.io 5: addEventSource not work from external function

For a small project I want to add events at runtime.
The actual calendar is created with data from a database. The separate script creates additional events, which are created dynamically at runtime of the calendar. These events should be added to the existing calendar afterwards.
For testing I have a calendar and an external button. If you click on the button, an event should be added to the calendar. Calendar is created and the click is recognized. But no event is added.
Where is the thought error?
The HTML
<button class="holiday">Add Feiertage</button>
<div id='calendar'></div>
The Code:
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
headerToolbar: {
left: 'prev,next today',
center: 'title',
right: 'dayGridMonth,timeGridWeek'
},
initialDate: '2020-11-12',
businessHours: true, // display business hours
editable: true,
events: [
{
title: 'Business Lunch',
start: '2020-11-03T13:00:00',
constraint: 'businessHours'
},
{
title: 'Meeting',
start: '2020-11-13T11:00:00',
constraint: 'availableForMeeting', // defined below
color: '#257e4a'
},
{
title: 'Conference',
start: '2020-11-18',
end: '2020-11-20'
},
{
title: 'Party',
start: '2020-11-29T20:00:00'
},
// areas where "Meeting" must be dropped
{
groupId: 'availableForMeeting',
start: '2020-11-11T10:00:00',
end: '2020-11-11T16:00:00',
display: 'background'
},
{
groupId: 'availableForMeeting',
start: '2020-11-13T10:00:00',
end: '2020-11-13T16:00:00',
display: 'background'
},
// red areas where no events can be dropped
{
start: '2020-11-18',
title: 'Test-Holiday',
overlap: false,
display: 'background',
color: '#ff9f89'
}
]
});
calendar.render();
});
// external events by Click
jQuery(document).ready(function($) {
$('.holiday').on('click', function() {
console.log('klick');
document.addEventListener('DOMContentLoaded', function() {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl);
//var src = calendar.getEventSources(); // give me a empty array
calendar.addEventSource(
{
events: [ // put the array in the `events` property
{
title : 'Test-Event',
start : '2020-11-11',
overlap: false,
display: 'background',
color: '#ff9f89'
}
]
});
calendar.refetchEvents();
});
});
});
Here is my Test:
https://jsfiddle.net/LukasHH/tu14xfwr/

The calendar variable you're using for calendar.addEventSource refers to a different FullCalendar instance than the one which is shown on your page. You have created a completely new calendar - but then didn't render it to the page. That's why you don't get errors, but also nothing useful happens.
The original calendar is defined and populated inside your document.addEventListener('DOMContentLoaded', function() { block, but you tried to create a new one inside your jQuery(document).ready(function($) { block. You need to use the existing reference to calendar - but of course it's out of scope when you need it, because you're in a different code block.
Now, document.addEventListener('DOMContentLoaded', function() { and jQuery(document).ready(function($) { are essentially equivalent, it's just that one is written in native JS and one is jQuery syntax. They basically do the same task - i.e. delay execution of the code until the DOM is completely loaded. Therefore it doesn't make much sense or add any value to have both of them in the page at the same time. Just use one block to include all of your code, and then you won't have any scope problems regardless.
As well as that, for similar reasons it also makes no sense to have another document.addEventListener('DOMContentLoaded', function() { within the jQuery "ready" block! You simply don't need it. I can only assume you didn't understand what that code did and thought it was part of fullCalendar - it's not.
And
var i = calendar.initialEvents();
console.log(i);
makes no sense. There's no method called initialEvents in fullCalendar and you don't seem to be trying to use i for anything anyway, so you can just remove these lines.
e.g.
jQuery(document).ready(function($) {
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
//...etc
});
calendar.render();
$('.holiday').on('click', function() {
calendar.addEventSource({
events: [ // put the array in the `events` property
{
title: 'Test-Event',
start: '2020-11-11',
overlap: false,
display: 'background',
color: '#ff9f89'
}
]
});
});
Demo: https://jsfiddle.net/32w4kLvg/

unable to add an array formed by self-defined function as an event source

I have used AJAX to request data from the database through an API. Here is the function.Since the formatting in the dB is different from the one Full Calendar requires, I have created an Object called schedule that looks the same as an Event Object to store each event item. Then push each object into an array called schedules. (In case anyone ask, reformattingTime() is just changing the string I get from database from HHMM to HH:MM:SS format)
function getCourse(arr){
$.ajax({
type: "GET",
url: '/course',
success: function(req){
for (var i = 0; i < req.length;i++){
var schedule = {daysOfWeek:[]};
schedule.title = req[i].course_name;
schedule.daysOfWeek = req[i].course_day;
schedule.startTime = reformattingTime(req[i].course_starttime);
schedule.endTime = reformattingTime(req[i].course_endtime);
arr.push(schedule);
}
},
error: function(err){
alert('Error:' + err);
}
}
)
}
here's how schedules[0] looks like
Next when I load the page, I add schedules as an event source then render the calendar. However, the events wouldn't appear in the calendar.
<script>
var schedules = [];
$(document).ready(function(){
getCourse(schedules);
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
plugins: ['timeGrid', 'dayGrid', 'interaction', 'list'],
header:{
left: 'timeGridWeek,listMonth'
},
defaultView: 'timeGridWeek',
});
calendar.addEventSource(schedules);
calendar.render();
});
If I hard code the array, the events can be displayed. I have checked that the schedule object from getCourse() is the same as the one I have hard coded.
index 0 is hard coded while index 1 is generated from the function. At this situation, only 0 is displayed
<script>
var schedules = [{
title: "A1",
startTime: "18:00:00",
endTime: "20:00:00",
daysOfWeek:['1']
}];
$(document).ready(function(){
getCourse(schedules);
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
plugins: ['timeGrid', 'dayGrid', 'interaction', 'list'],
header:{
left: 'timeGridWeek,listMonth'
},
defaultView: 'timeGridWeek',
});
calendar.addEventSource(schedules);
calendar.render();
});

Your issue is that AJAX request is ASYNC. Which means rest of the code continue to execute before the request is complete. Which means your schedule is always be empty when calendar is instantiated. Therefore you need to wait until request is done. So you have to do something like below. I've also added some further code improvements you could make take advantage of ES6+ capabilities.
I don't know API call etc so can't really test it all but this is what you need to do.
function getCourse(arr) {
return $.ajax({ // return the promise
type: "GET",
url: '/course'
})
}
function renderCalendar(courseList) {
const calendarEl = document.getElementById('calendar');
const calendar = new FullCalendar.Calendar(calendarEl, {
plugins: ['timeGrid', 'dayGrid', 'interaction', 'list'],
header: {
left: 'timeGridWeek,listMonth'
},
defaultView: 'timeGridWeek',
});
calendar.addEventSource(schedules);
calendar.render();
}
function toCourseModel(course) {
return {
daysOfWeek: [],
title: req[i].course_name,
daysOfWeek: req[i].course_day,
startTime: reformattingTime(req[i].course_starttime),
endTime: reformattingTime(req[i].course_endtime),
}
}
// DOMContentLoaded
// #see https://developer.mozilla.org/en-US/docs/Web/Events/DOMContentLoaded
document.addEventListener('DOMContentLoaded', async (event) => { // ES6+ Native javascript.
console.log('DOM fully loaded and parsed');
const coursesList = await getCourse().catch(console.error) // await till async promise is complete
const transFormed = coursesList.map((course) => { // ES6 Array.map() method
return toCourseModel(course);
});
// Now create the calendar
renderCalendar(transFormed);
});

FullCalendar RenderEvent Not working in version 3.9.0

i'm trying to upgrade my fullCalendar version to the latest ( 3.9.0 ) but i can't seams to make the renderEvent function work. The event simply does not render. I'm also using the latest version of the scheduler plugin ( 1.9.3 )
I tried adding events using the $('#calendar').fullCalendar('renderEvent', event, true) like I used to, but now it does not seams to work.
I also tried $('#calendar').fullCalendar('addEventSource', event) followed by $('#calendar').fullCalendar('refetchEventSources') nothing seams to be working.
Here is my code.
$(document).ready(function() {
//Calendar option
const LOCALE_DEFAULT = 'fr';
const TIMEZONE_DEFAULT = 'local';
const IGNORE_TIMEZONE_DEFAULT = false;
const HEIGHT_DEFAULT = 'auto';
const DROPPABLE_DEFAULT = true;
const ALL_DAY_DEFAULT_DEFAULT = false;
const ALL_DAY_DEFAULT = false;
const ALL_DAY_SLOT_DEFAULT = false;
const TIME_EVENT_DURATION_DEFAULT = '03:00:00';
const SELECTABLE_DEFAULT = true;
const SLOT_EVENT_OVERLAPP_DEFAULT = false;
const SELECT_HELPER_DEFAULT = false;
const EVENT_RESOURCE_EDITABLE_DEFAULT = false;
const PUBLISHED = true;
const SCHEDULER_LICENCE = 'CC-Attribution-NonCommercial-NoDerivatives';
let events = [{"id":2,"title":"test","start":"2018-03-18T15:30:00.000Z","end":"2018-03-18T19:30:00-04:00","creationDate":"2018-03-18 14:55:25","resourceFullName":"testRessource","resourceId":3,"type":"shift"}];
let resources = [{
fullname: "resource 1",
id: 1
},
{
fullname: "resource 3",
id:3
}]
$("#calendar").fullCalendar({
locale: LOCALE_DEFAULT,
timezone: TIMEZONE_DEFAULT,
ignoreTimezone: IGNORE_TIMEZONE_DEFAULT,
slotDuration: '00:30:00',
height: HEIGHT_DEFAULT,
header: {
left: 'prev,next today',
center: 'title',
right: 'timelineDay, weekCustom' + /*, timelineWeek */', month, agendaDay'
},
buttonText: {
today: "today",
timelineDay: "timelineDay",
timelineWeek: "timelineWeek",
month: "month",
agendaDay: "agenda"
},
views: {
weekCustom: {
type: 'timeline',
timeFormat: 'H(:mm)',
buttonText: 'Semaine',
displayEventEnd: true,
duration: {week: 1},
slotDuration: {days: 1}
}
},
defaultView: "weekCustom",
lang: 'fr'/*$filter('translate')('language')*/,
scrollTime: "08:00:00",
resourceAreaWidth: "220px",
events: events,
editable: true,
droppable: DROPPABLE_DEFAULT,
allDayDefault: ALL_DAY_DEFAULT_DEFAULT,
allDay: ALL_DAY_DEFAULT,
allDaySlot: ALL_DAY_SLOT_DEFAULT,
defaultTimedEventDuration: TIME_EVENT_DURATION_DEFAULT,
resourceLabelText: "resources",
schedulerLicenseKey: SCHEDULER_LICENCE,
selectable: SELECTABLE_DEFAULT,
slotEventOverlap: SLOT_EVENT_OVERLAPP_DEFAULT,
selectHelper: SELECT_HELPER_DEFAULT,
eventResourceEditable: EVENT_RESOURCE_EDITABLE_DEFAULT,
resources: resources,
select: function (start, end, jsEvent, view, resourceObj) {
let event = {
start: start,
end: end,
title: "test"
};
//$("#calendar").fullCalendar('addEventSource', [event]);
//$("#calendar").fullCalendar('refetchEventSources', [event]);
//true for stick events
$("#calendar").fullCalendar('renderEvent', event, true);
},
eventClick: function (event, jsEvent, view) {
},
eventDrop: function (event, delta, revertFunc) {
},
eventResize: function (event, dayDelta, minuteDelta, revertFunc, jsEvent, ui, view) {
},
viewRender: function (view) {
},
loading: function (bool, view) {
}
});
});
<link href="https://cdnjs.cloudflare.com/ajax/libs/fullcalendar/3.9.0/fullcalendar.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/fullcalendar-scheduler/1.9.3/scheduler.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.21.0/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fullcalendar/3.9.0/fullcalendar.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fullcalendar-scheduler/1.9.3/scheduler.min.js"></script>
<div id="calendar">
</div>
P.S. use the timeline day for a more efficient test.

Your code works fine, and creates the event quite happily - try it: select a time period (in any view), remember the date/time you chose, and then go to your "month" view. You will see the created event in the timeslot you selected.
The problem comes when you try to view the event in a view which uses resources. Your code does not specify a resourceId for the new event. Therefore, fullCalendar has no idea which resource to show the event on, and so cannot display it at all in any resource-aware view.
To fix this, simply take the resourceId supplied in the resourceObj parameter of the select callback, and include it in your new event object:
let event = {
start: start,
end: end,
title: "test",
resourceId: resourceObj.id
};
P.S. you should also run "unselect" after the call to "renderEvent", otherwise the timeslot chosen will remain highlighted on the calendar behind the created event (until or unless the user clicks elsewhere). In some views this is more obvious than others, but it doesn't look right. The command is simply:
$("#calendar").fullCalendar('unselect');