Rebuild contacts and commhistory from contacts.db and commhistory.db

[nas]

If the contacts database is from SailfishOS 3.* then you will have problem if you just copy it to SailfishOS 4. Check The following post:

[4.0.1.45] Hundreds of contacts lost after update

In the 3.x.x database, synchronised constituent contacts had a specific syncTarget field (and most will also have an associated accountId although this is usually stored in out-of-band data rather than easily queryable). In 4.x.x we now support addressbooks as a top-level concept, so each contact is associated with a particular addressbook (collection). See https://git.sailfishos.org/mer-core/qtcontacts-sqlite/ for details. For the backup/restore code, see https://git.sailfishos.org/mer-core…

I wrote a conversion script in php that opens the .sqlite contacts database from SailfishOS 3 and generates a VCARD file. Since I didn’t lost all contacts, I also checked with the SailfishOS 4 contacts database to see what was missing. I hope it will help you. For commhistory I don’t have any ideas. Good luck on both.