"Roland Winkler" <wink...@gnu.org> writes: > On Thu Apr 24 2014 Eric Abrahamsen wrote: >> I'm trying to create a custom xfield for records that is a list, not a >> string. So far as I can tell, it's only possible for xfield values to be >> strings. Is that correct? Is it possible to circumvent this at the >> moment? > > By default, the values ox xfields should be strings. Nonetheless, > there are various ways to go beyond that: > > - bbdb-record-xfield-intern returns the interned value (i.e., a symbol) > of an xfield LABEL > > - bbdb-record-xfield-split splits the value as a list of strings. > (See the source code of BBDB for how these functions are used in > various places.) > > - If you want to go beyond the constraint that the stored values of > an xfield should be strings, this requires more of an effort. > You need to define functions bbdb-display-XFIELD-LAYOUT and > bbdb-read-xfield-XFIELD, plus possibly modifications elsewhere. > I have not tried that myself as I did not find it necessary for > anything I wanted to do with BBDB. > > The problem is that then your bbdb-file can be handled only if > your customizations are first properly loaded. This can make > debugging more difficult. > > Roland
Thanks for this! Very useful starting places. Something I've wanted to do for a long time is make an xfield that stores pointers to the N most recently received mails (in Gnus) from the record in question. I don't necessarily expect it will work, but I wanted to give it a shot. Thanks again, Eric ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ bbdb-info@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bbdb-info BBDB Home Page: http://bbdb.sourceforge.net/
