Contacts: Strange resolvine of vcard X-ANDROID-CUSTOM:vnd.android.cursor.item/relation

[IamSAB]

In the Android contacts app you can create relations for contacts therefore relate a contact to mulitple other contacts. This feature is also available in the nextcloud contacts app ui.

However, I noticed, that relations created on my mobile phone are not the same anymore when sync to the server.

Her an example. I created the relations on my phone, then exported it to VCF. Then I did the sync to nextcloud (using DAVdroid) and downloaded the VCF there. Here the comparison:

VCF from my phone

X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Assistant;1;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Brother;2;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Child;3;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Domestic Partner;4;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Father;5;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Friend;6;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Manager;7;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Mother;8;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Parent;9;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Partner;10;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Referrred;11;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Relative;12;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Sister;13;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Spouse;14;;;;;;;;;;;;;
X-ANDROID-CUSTOM:vnd.android.cursor.item/relation;Custom;0;Custom;;;;;;;;;;;;

VCF from nextcloud
```
RELATED;TYPE=co-worker;VALUE=TEXT:Assistant
RELATED;TYPE=sibling;VALUE=TEXT:Brother
RELATED;TYPE=child;VALUE=TEXT:Child
RELATED;TYPE=spouse;VALUE=TEXT:Domestic Partner
RELATED;TYPE=parent;VALUE=TEXT:Father
RELATED;TYPE=friend;VALUE=TEXT:Friend
RELATED;TYPE=co-worker;VALUE=TEXT:Manager
RELATED;TYPE=parent;VALUE=TEXT:Mother
RELATED;TYPE=parent;VALUE=TEXT:Parent
RELATED;TYPE=spouse;VALUE=TEXT:Partner
RELATED;VALUE=TEXT:Referrred
RELATED;TYPE=kin;VALUE=TEXT:Relative
RELATED;TYPE=sibling;VALUE=TEXT:Sister
RELATED;TYPE=spouse;VALUE=TEXT:Spouse
RELATED;TYPE=custom;VALUE=TEXT:Custom
````
Apparrently, it is expected, that the android relations get resolved to the RELATED attribute in vcard. But as you see, the conversion is not correct for all relations.

I wonder, where this differences are created. I cannot say what causes this mistakes: DAVdroid, some parts of the contact app (do you have some predifined relations?) or even Android.

I cannot say, if this is a bug or an expected behaviour considering the implementation of the vcard relations. Can you give me some insights, what could cause these problem?

[skjnldsv]

Hey!
yes, this is a feature from Davx, forwarding custom android properties to the correct vCard ones.

VCF from nextcloud

When you say from Nextcloud, you mean changed with Nextcloud or just downloaded from the Contacts app?

[IamSAB]

Ok, that good to know. Should I then post an issue on the Davx repository?

You are correct. I downloaded the vcard directly via the nextcloud contacts app without editing and saving the contact.

[skjnldsv]

It might be by design
https://www.davx5.com/manual/technical_information.html?highlight=related#relation

[nextcloud-stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity and seems to be missing some essential information. It will be closed if no further activity occurs. Thank you for your contributions.