Bug 450570

I imported the calendar in question and was unable to reproduce the slowness -- obviously slower than a blank calendar but nothing unusual or unexpected, even considering the calendar in question has an event every single day

Are you able to reproduce this on Kalendar 22.08?

Nice, it works now but it doesn't work directly, I need to do it a couple of times retry a few more times to get it working.

Steps need to get it working:
1. open kalendar
2. configure kalendar (can't press ctrl+shift+, or kalendar will hang/lag), need to press settings > configure kalendar
3. press kalendar sources tab
4. press add new kalendar source button
5. select iCal Calendar File
6. input https://lwlsw.github.io/Chinese-Lunar-Calendar-ics/chinese_lunar_my.ics as filename
7. input `Lunar Calendar` as display name
8. check read-only
9. press okay
10. close add new calendar source pop-up
11. now I see a new resource called akanodi_ical_resource_15 instead of `Lunar Calendar`
12. press `Restart` for `Lunar Calendar` so `Lunar Calendar` is now added to my list of calendars besides akanodi_ical_resource_15 (I can't delete this empty calendar or the lunar calendar will be deleted too)
13. now only I see both `Lunar Calendar` and `akanodi_ical_resource_15` (I have no idea what is this)
14. I am so not happy with the extra calendar name so I removed both and retry

Second try without inputting `Lunar Calendar` as display name first

1. open kalendar
2. configure kalendar (can't press ctrl+shift+, or kalendar will hang/lag), need to press settings > configure kalendar
3. press kalendar sources tab
4. press add new kalendar source button
5. select iCal Calendar File
6. input https://lwlsw.github.io/Chinese-Lunar-Calendar-ics/chinese_lunar_my.ics as filename
7. close and wait for a couple of minutes (previously I thought it didn't work and removed the calendar, but now because I am writing a reply to this ticket, it just shows up), probably I just need to wait but I didn't know
8. close all pop-ups
9. right click `akonadi_ical_resource_17` calendar and press edit
10. enter `Lunar Calendar` as display name
11. select `moon-phase-full` as icon
12. press okay
13. it now works as expected, but imagine I tried this ~10 times in different ways at different time in order to get this to work

A better way to solve this is to have kalendar have built-in support for alternative calendars so I wouldn't have to do all this (search for a lunar calendar, figure out how to get kalendar to import, figure out I need to wait for a couple of minutes for it to work).

But yeah, can close this ticket since I figured out how to get it working.

Created attachment 152631 [details]
Calendar view

I went back to use calendar in kontact due to kalendar having too many unnecessary animations and have to run a separate calendar app.

But I noticed that I have no control over the order of the calendars, then the lunar calendar is going to show up jumbled up as the last calendar which makes it quite unreadable. Maybe I should open a new issue for this?

(In reply to Ivan Tham from comment #2)
> Nice, it works now but it doesn't work directly, I need to do it a couple of
> times retry a few more times to get it working.
> 
> Steps need to get it working:
> 1. open kalendar
> 2. configure kalendar (can't press ctrl+shift+, or kalendar will hang/lag),
> need to press settings > configure kalendar
> 3. press kalendar sources tab
> 4. press add new kalendar source button
> 5. select iCal Calendar File
> 6. input
> https://lwlsw.github.io/Chinese-Lunar-Calendar-ics/chinese_lunar_my.ics as
> filename
> 7. input `Lunar Calendar` as display name
> 8. check read-only
> 9. press okay
> 10. close add new calendar source pop-up
> 11. now I see a new resource called akanodi_ical_resource_15 instead of
> `Lunar Calendar`
> 12. press `Restart` for `Lunar Calendar` so `Lunar Calendar` is now added to
> my list of calendars besides akanodi_ical_resource_15 (I can't delete this
> empty calendar or the lunar calendar will be deleted too)
> 13. now only I see both `Lunar Calendar` and `akanodi_ical_resource_15` (I
> have no idea what is this)
> 14. I am so not happy with the extra calendar name so I removed both and
> retry
> 
> Second try without inputting `Lunar Calendar` as display name first
> 
> 1. open kalendar
> 2. configure kalendar (can't press ctrl+shift+, or kalendar will hang/lag),
> need to press settings > configure kalendar
> 3. press kalendar sources tab
> 4. press add new kalendar source button
> 5. select iCal Calendar File
> 6. input
> https://lwlsw.github.io/Chinese-Lunar-Calendar-ics/chinese_lunar_my.ics as
> filename
> 7. close and wait for a couple of minutes (previously I thought it didn't
> work and removed the calendar, but now because I am writing a reply to this
> ticket, it just shows up), probably I just need to wait but I didn't know
> 8. close all pop-ups
> 9. right click `akonadi_ical_resource_17` calendar and press edit
> 10. enter `Lunar Calendar` as display name
> 11. select `moon-phase-full` as icon
> 12. press okay
> 13. it now works as expected, but imagine I tried this ~10 times in
> different ways at different time in order to get this to work

A couple of notes from me:

1. You are right that I have not been able to get an iCal file to work as a new calendar source -- no events show up. However, using the "import calendar" option in the window/hamburger menu works fine, which leads me to believe this is an issue with Akonadi
2. Calendar source names and calendar names are two different things -- on the calendar source creation dialog you are setting the name of the calendar source and not the calendar itself. The calendar name is what will appear in the sidebar