Re: [gnome-db] Indentured View in Grid?

["Daniel Espinosa" <esodan gmail com>]

2007/11/26, Vivien Malerba <vmalerba gmail com>:
> On Nov 24, 2007 6:40 PM, Andrew Rowland <weibullguy gmail com> wrote:
> > I really like the ease with which I can interact with my databases using
> > libgda/libgnomedb.  Great tool, thanks a lot for your work.  I have one
> > thing I've been trying to do with no success thus far.  I have data that
> > I would like to display in a hierarchical format such as below.  Is
> > there any way to create an indentured list using either the db grid
> > and/or the data store?
> >
> > EXAMPLE:
> >
> > Item 1
> >         Subitem 1a
> >         Subitem 1b
> >                 Subsubitem 1b1
> > Item 2
> >
>
> The short answer is it's not possible with Libgnomedb. Note however
> it's possible with GTK+ directly but then you'll have to write your
> own code.
>
> Also in the past Diego Zuccato proposed (2 years ago, see
> http://mail.gnome.org/archives/gnome-db-list/2006-January/msg00030.html)
> to add that feature to Libgda but it was posponed because of the other
> tasks to do. Basically all would be required would be to modify the
> GdaDataModel interface to add support for hierachical rows, and modify
> the GnomeDbDataStore to handle that addition.
>
> Regards,

Maybe is not necesary to modify the DataModel interface but
GnomeDbGrid to manage queries for each showed row, for each resquest
to expand (using the arrow) a query could be called to fill the
related items.

This could be a GnomeDbGrid derived widget, with an API to attach the
queries to call.

Or attach callbacks to the arrow button in order to call a query, but
this must be hardcoded for the developer (get the DataStore and modify
to add the required nodes from the Database).

-- 
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