Improve performance when there are thousands of events - load events via ajax?

[herbdool]

I'm testing this out with an existing client site that has over 6500 events over quite a few years. This views plugin loads all events at once in order to render the calendar. Perhaps there's a way to page the content loading with AJAX. It might require a pager that can page by date.

[indigoxela]

Perhaps there's a way to page the content loading with AJAX

In fact, there is. A bit "hidden", as it works with exposed filters. The GET params Fullcalendar (always) sends are "start" and "end". And if your view uses these key(s), the filtering should work.

Need to elaborate a real example for that.

Edit: oops, I mixed that up with "fullcalendar feed", which does exactly that.

[indigoxela]

@herbdool your request makes sense. In order to get this working, we'd only need to allow empty calendars to render. That's not hard.

Then you'd add a "Fullcalendar feed" (Fullcalendar JSON), configure your fields, and add an exposed filter to that json view for start and end.
Important step: set the "Filter identifier" to exactly "start" and "end", as that's how fc sends the GET requests.
Add the path of this "Fullcalendar feed" to the calendar view (page) under "Additional event source URLs".

You won't see form items in the preview, of course, but you can see them in action on your json path:

On /fullcalendar-feed-test.json (replace with your actual path), you'll get a lot of records. Now filter with URL params like /fullcalendar-feed-test.json?start=2023-09-01&end=2023-10-01.

Please note that the views preview was broken, but is now fixed (different issue).
To be able to render the empty calendar you'll need this PR here: #34