Q: How do I programmatically find all events that occurs at a given date?
In a TimeGrid view, Let's say I'm catching a click time event when clicking on a cell. I would like to know what event(s) might have overlaps with that time. Of course it's not just the one in the cell I just clicked on, it's also recurring events and all-day events.
I just can't find any utils to do that kind of search/filter and I'm not sure I want to re-implement a whole procedure from scratch.
Note: I'm looking at the ListView that have a eventStoreToSegs call that might do a similar job. But any help will be welcome.
Related
My question: how do I update "this and all future" instances in a recurring event which is limited by count so that the total number of events stays consistent?
What is the problem:
Trying to modify recurring event and I follow the below guide:
https://developers.google.com/calendar/recurringevents
Basically to update all future recurring events using a target event, the doc says one need to do two calls:
update existing event to make so it ends before the target event date
create a new recurring event with the same fields except of those need changes.
That works fine until there is an event that is limited by the number of occurrences.
Let's say there is a recurring event limited by 10 occurrences and target event is 5th event.
Now I need to split the original so that the first 4 events goes to the original one (so I update COUNT from 10 to 4) and then I create a new recurring event that holds the rest 6 events (so COUNT is 6 in this case)
My first observation is that this is not how the split events are displayed in google calendar - if I test that manually, the both events still show 10 occurrences but the second one doesn't produce any extra events (I'd expect 14 events from developer perspective, yet there are 10 as any user would expect). That implies there is a different approach here? Is it?
Also if I end up counting manually the number of events, there are still issues with cases like deleting one of the events first (let's say, the 4th event) - now how do I know that I need to show 6 instances in the new one and not 7?
Those thoughts make me think there is a better approach, but I can't find any other alternatives. Any advice on that?
UPDATE
It seems like google does it differently: for example after changing a title for "this and future" events in calendar view, it doesn't seem to produce two different recurring events since if you try to delete "all" events, that will remove all of them completely (rather than deleting only one chunk, either before or after the target event)
It seems like they are creating a bunch of exceptions or maybe "recurring exception" or something to do that. Can't find any examples on how to do that as of now thought.
Can't find any good solution for this after a few days of research and while I need to move forward I ended up with a sort of "compromise" between "good enough UX for my case" and "breaking best practice".
So I ended up updating each event individually which goes against google's warning as shown below but I limited the max count by 50. This is not necessary what others want to do, but this is good enough for the real world use case in my app.
Warning: Do not modify instances individually when you want to modify
the entire recurring event, or "this and following" instances. This
creates lots of exceptions that clutter the calendar, slowing down
access and sending a high number of change notifications to users.
And if user needs to schedule more than that, the user is asked to use "end date" instead.
Again, not ideal by any means so if anyone knows how to handle that correctly or knows how google handles that, you are very welcome to share it! (meh... and I need that for outlook too now...)
UPDATE: just got an idea: as an improvement, one can edit either "all future events" or alternatively the master event + "all previous events" depending on the index of the target event. In this case one can limit the number of requests by 2 (so in case of 50 events I'll need to do 25 requests maximum)
So if user wants to change the title from "Hello" to "Goodby" and if the user picked event number 5 in the series of 50 events to change all future events, we can change the master event to "Goodby" which will change the title of all events, and then update the first 4 events to the original "Hello".
Obligatory summary of comments and chat:
Updating events:
To update specific events in a recurring event you need to update the individual instance by specifying the event instance ID.
This is just the event ID concatenated with a datetime stamp (you can see this when making an Events: instances request for your eventID; if your event ID is xxxxxxxxxxxx then an instance ID would be something like xxxxxxxxxxxx__20200603T170000Z).
Unfortunately there's no direct update-instances endpoint so to update multiple instances in one request you'd need to use batching
The API doesn't have a dedicated method for updating recurring events regardless of the recurrence type, and I presume this is the reason the documentation says to edit the previous recurring event by cutting it down and inserting a new one, as per Google's warning:
Do not modify instances individually when you want to modify the entire recurring event, or "this and following" instances. This creates lots of exceptions that clutter the calendar, slowing down access and sending a high number of change notifications to users.
Batching:
Making a batch update on event instances does keep count consistency. If you edit instances in a batch and then use the 'this and all future events' option when deleting one of the instances of the recurring event they do all get deleted as they're still a part of the recurrance. There is no new event being created in either scenario, the event instances are being changed.
If you play around with Events: instances and use Events: update to change only some instances of an event, then you can see that they all stay part of the same recurrence chain and there is no count change.
For arbitrary large counts, even if you have a recurring event with 9999999 instances, each event still has an ID which you can retrieve from Events: instances. It's stored as a single event for event use, but the IDs of the instances are the identifiers which are different.
Honestly, it's not great that you have to edit each one manually; for large counts like 9999999 it's basically infeasible because you'll have to make a batch request for each set of 100 instances you want to change, but it's the only option available via the API at the moment.
Feature Request:
You can however let Google know that this is a feature that is important for the Calendar API and that you would like to request they implement it. Google's Issue Tracker is a place for developers to report issues and make feature requests for their development services, I'd urge you to make a feature request there, the Calendar API feature request form can be found here.
Is there a way to specify the maximum number of events to be displayed in the same time slots in the weekly view (timeGridWeek)? What I am looking for is a solution similar to eventLimit and eventLimitClick; these specify the maximum number of events in a given day, and work perfectly fine for the monthly view.
Following a reply by ADyson, it turns out that the week timeline view does not work with eventLimit yet, meaning that all events will be rendered in the allocated timeslot rather than having a typical '+n more'. However there is already a an accepted feature request for this.
I am in the process to add FullCalendar v4 to our react application and I'm pretty new to FullCalendar, so excuse me if I ask a basic question.
I searched both the documentation and StackOverflow, but couldn't find any hints to my current problem. Let me briefly describe our goal scenario:
We want to load and render the events for a whole year and show a date range of about 40 days (a whole month and additionally 5 days from the last and the next month) to the user. The user should be able to scroll through the whole year with the scrollbar.
The first question is whether FC4 already provides the functionality with which we can achieve our goal. I tried to define a custom view of type 'resourceTimeline' with a duration of 30 days and additionally set the 'validRange' to the current year. This gives me the look I want, but unfortunately it is static - the scrollbar is not visible as long as the screen can display the whole area of 40 days. With the next/previous buttons I can switch between the 40 days segments, but I'd rather use these buttons to switch between years and use the scrollbar to scroll within the year.
We have now tried to set the 'visibleRange' to the current year and programmatically scroll to the current date in the 'datesRender' function. The problem is that we can't decide whether FC4 was initially loaded (where we would scroll to the current date) or whether a user scrolled manually to another date in the timeline and edited an event there. In this case the scroll position should be kept.
So what we are missing is the matching callback that tells us that the 'executeRender' function has been completely executed. The question at this point is how and where I can provide an application specific callback function that is triggered after all dates and events have been rendered. I also saw several internal success callbacks. Is it possible to overwrite them?
Any ideas and hints are highly appreciated.
Thank you very much for thinking along.
I'm trying to create an event with 2 different date/time.
I am using a system at appointment services at home. I use fullcalendar for schedule jobs.
I want to create an event with two dates, one is the date when I will make Pick Up and the second when I will Delivery the order.
The easiest solution for this would probably be to simply create two events and reference them to each other, You can for example create a field in your database or whatever you are using to store events, and add a "category" field, where a event can either be of category "pick-up" or "delivery". In your JS you can then use that field to determine what to do with the given event.
Additionally, you will need a field where you refer both events to each other.
LMK if you need further assistance, although I would like some more concise information, so I can fully comprehend what you are trying to do
Basically I created a script in google sheets that was then added to a button so that I could click the button and count the number of calls I make throughout the day. Button is assigned to a specific cell (i.e. A1). Is is possible to re-write the script so that each day the script knows to stay in the same Column (A), but go to the next row (A2) so that I can track my daily calls without having to reassign the script to a specific cell each day?
I am not sure I understand exactly what you are trying to do, but the attached copy of your spreadsheet finds the current date and then runs your code based on the current date when the button is clicked. I hope this is what you want. If not, please explain further.
https://docs.google.com/spreadsheets/d/1L2CAhLcMuyECfx3zrUcRvSGOP0nNpBQRkMg-1JO4kys/edit?usp=sharing