Show age instead of birth year

[johkoenig]

Steps to reproduce

1. Add people with birthdays to your contacts app
2. Have a look at the birthday calendar

Expected behaviour

If somebody is born on August 1st, 1976, then the calendar of August 2018 should show "John Doe (42)"
The birthday date could be atted to the notes.

Actual behaviour

The calendar shows "John Doe (*1976)".

Server configuration

Server version: 14.0.3
Calendar version: 1.6.3

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[tcitworld]

Isn't this a server issue ?

[georgehrke]

@tcitworld Displaying the age is nothing we can practically do on the server, because it prevents us from using RRULE.
My idea was to introduce a property that stores just the birth year and to generate the age in browser: https://github.com/nextcloud/server/pull/11832/files#diff-e96c57f9fa60e361112de26af7457146R247

[johkoenig]

This probably needs some larger remodeling. As far as I can see it out of your code, right now you're creating a series appointment every year with the same text "John Doe (*1976)". You'll probably need to recode this to create a single appointment each year with a different text "John Doe (1)", "John Doe (2)", ...
I don't know if theres a nicer way of doing this.

[georgehrke]

You'll probably need to recode this to create a single appointment each year with a different text "John Doe (1)", "John Doe (2)",

@johkoenig Then we end up having at least 100 times as many birthday events, not to mention that updating a contact will also result in 100 update queries ....
So that's not really something I'm willing to do.

My idea was to keep John Doe (*1976) in the ics files (so mobile / desktop clients still see that), but then calculate the actual age in the calendar app.

[johkoenig]

The downside of this is that e.g. in Thunderbird, I still only see John Doe (*1976). On the iPhone it's not so much of a problem, because the iPhone creates a birthday calendar by itself. I don't know how android handles this.

[tcitworld]

@johkoenig If you want to discuss this more feel free to open an issue in the server repo.

[ypid-geberit]

I don't know how android handles this.

The Android Open Source Project (AOSP) as of 9.0 does not handle this e.g. does not support a birthday calendar. Non-vanilla Android versions (vendor modified) might have native support for this. In any case, Birthday Adapter does exactly what you proposed (generates calendar events like "John Doe (42)").

[johkoenig]

@ypid-geberit Thats good to know. My iPhone does the same, based on the data from the contact storage.
However, this issue is about the nextcloud calender.
@tcitworld I'll carry it over to server.

[call-me-matt]

I am very interested in this feature, too. In case there is a solution, I would love it if round birthdays could be highlighted so I can consider them in my planning without the need to check each entry.

[hartmann-daniel]

Hello.

I would also prefer to see the age instead of the year of birth. I understand the problem with the recurring appointments. For the age in the title, an entry would have to be created for each year.

My suggestion. Make the following feature optionally activatable in the settings:
"Show the age in the calendar entry instead of the year of birth"
... Create birthday entries only for x (adjustable) years retrospectively and in the future.

That would be a perfect solution for me.

What do you think?