[kdepim-users] Viewing Contacts

[Ingo Klöcker]

On Friday 12 December 2008, Anne Wilson wrote:
> On Friday 12 December 2008 15:34:30 Werner Joss wrote:
> > On Friday 12 December 2008 12:32:41 Keith Cowling wrote:
> > > I'm a newcomer to both KDE and Linux so I'm having a bit of
> > > trouble getting my head around what these 'resources' actually
> > > are.  I'm used to having my address book on my old Psion, for
> > > example, on which you just load a flat card database into the
> > > 'Data' module and can therefore have any number of data files
> > > including multiple address books, music records, recipes, book
> > > titles, etc on different files.  But these resources don't seem
> > > to be files.
> >
> > the standard resources are in fact files, just look at your
> > ~/.kde/share/apps/kabc/std.vcf - this is your addressbook, you can
> > open it with a text editor.
> >
> > > They all seem to have the same
> > > information and if I load one of them and try to customise it the
> > > changes subsequently appear on all the others.
> >
> > that is because you probably have activated 2 ressources, both
> > referring to the same file (see above).
> >
> > > Should I just delete
> > > them all except the main 'file address book' resource'
> >
> > you can't delete them in the contacts resources pane, just disable
> > one, that should do the trick.
> >
> > > and, if so, is
> > > there any way to load different address book files into Contacts?
> >
> > I'm not sure if this is possible with the ancient kde (3.4.x ?)
> > that comes with the eeepc, later versions can do that, and much
> > more (such as use resources from ldap servers or other network
> > based services etc...) just fiddle a bit around with the 'add
> > ressource' feature.
>
> Ah - I missed the reference to eeepc.  Eeepc 701 test coming up -
>
> Well, it sort-of works.  I say 'sort-of' because there were two
> differences that I saw.  First, when I added the nonsense record
> (same test as before) it showed only one entry, but I could still see
> that one entry, whichever resource was enabled.  I discovered that it
> was necessary to close kde-pim if you switched resources, after which
> the correct entries were shown.
>
> The second thing that seems a cause for concern is that when I added
> a record, std.vcf was backed up as std.vcf_5, not std.vcf_1 as
> expected.  This is nonsensical, both in the context of its own
> directory and the context of the original resource's directory.

This behavior does make sense if the backups are created in ringbuffer 
fashion, i.e. the oldest backup is replaced by the new backup and all 
other backups are left untouched. (Think "Duck, duck, goose" [1].)

If the backups were created in "finite queue" fashion then the creation 
of a new backup would require renaming all other backups. (Think belt 
conveyor.)

Your observation indicates that KAddressBook uses a ringbuffer for the 
backups.


Regards,
Ingo


[1] http://en.wikipedia.org/wiki/Duck,_duck,_goose
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