Re: Is it possible to add rev_multilink to an existing property of a Class?

On Fri, Dec 22, 2023 at 11:28:15PM +0100, Nagy Gabor wrote:
> Dear Roundup developers,
> 
> My schema.py has for example a Class definition like this:
> issue = IssueClass(db, "issue", files = Multilink("file"), ...)
> 
> And my issues already contains many multilinks to some files.
> 
> Can I change the defintion in schema.py to
> issue = IssueClass(db, "issue", files = Multilink("file", rev_multilink="owner"), ...)
> without corrupting the database?

Yes. The rev_multilink feature doesn't change the db, it just tells the
database that we want to use the multilink also for navigating in the
reverse direction.

Still for every schema-change you want to have a backup.

> Regards and merry Christmas,
Also merry Christmas to you!

Ralf
-- 
Dr. Ralf Schlatterbeck                  Tel:   +43/2243/26465-16
Open Source Consulting                  www:   www.runtux.com
Reichergasse 131, A-3411 Weidling       email: [email protected]