[OwnCloud] DAVdroid just sync contacts without group membership

[W11]

DAVdroid just sync contacts without a group membership. The problem was identified with OwnCloud 7.0.2. So I used the chance to update to OwnCloud 8.2.0 . The problem is still there. I don't synchronize my OC-Account with any other device just by Sony Z3 compact.

Some ideas where the problem could be?

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DAVdroid 0.9.1
Sony Xperia Z3 compact (Android 5.1.1)

OwnCloud 8.2.0
Apache, SQLite

[devvv4ever]

Theoretically DAVdroid supports groups via the vCard3 "CATEGORIES" field and Owncloud uses this kind of group management, or at least I know that it used it in the past... I've no idea where the problem may be in this case, since I don't know OC so well...

[bpoussin]

I have same problem with android 5.1.1 (Sony Z1 compact) and Owncloud (8.2.2) and davdroid 1.0.8 (last version available in f-droid)

Owncloud send all contact (format seem ok), davdroid received all contact and in log file davdroid indicated that all contact is added. But all contact with 'CATEGORIES:' field are not available in phone.
Owncloud group are not created in phone, but i can create group in phone and add contacts, in that case, group appear in owncloud. But if, i remove account and create same account, there is same problem, group are not re-created and contacts in that group are not available in phone.

example entry with 'CATEGORIES' (same contact without 'CATEGORIES' work)

<d:response><d:href>/remote.php/carddav/addressbooks/poussin/contacts/5A7BBE7A-77AE2EAC-771E9A56.vcf<
/d:href><d:propstat><d:prop><d:getetag>"6ed49031edca80e273b226b9ea79be22"</d:getetag><card:address-data>BEGIN:VCARD&#13;
VERSION:3.0&#13;
UID:http://poussin@owncloud.mydomain.com/remote.php/carddav/addressbooks/poussin&#13;
 /contacts/5A7BBE7A-77AE2EAC-771E9A56.vcf&#13;
PRODID:+//IDN bitfire.at//DAVdroid/1.0.8 vcard4android ez-vcard/0.9.9&#13;
FN:GuiGui BriBri&#13;
N:BriBri;GuiGui;;;&#13;
TEL;TYPE=cell:0612345678&#13;
CATEGORIES:bad&#13;
REV:2016-05-13T17:10:47+00:00&#13;
END:VCARD&#13;
</card:address-data></d:prop><d:status>HTTP/1.1 200 OK</d:status></d:propstat></d:response>

ps: if the correction is not simple, it would be very useful to add it to the FAQ

[rfc2822]

I have just tried with our test device and I can't reproduce the problem (created contact in OwnCloud with new group, synchronized → contact appeared on tablet).

I guess this is a problem with your contact editor. Please try another contact editor.

Also, please provide verbose steps to reproduce and logs.

[bpoussin]

I can't find other contact editor on f-droid and i don't have Play (google) account.
But i have find contact exporter, and in exported file, i see missing contact, but without 'CATEGORIES' field :( (perhaps bug in export application)

I think, you right, it's Sony Experia Z1 editor contact bug :(

thank you for your anwser