storing comment in the database

Hello,

I am looking into choosing a issue tracking system and Roundup
is very appealing because of its customizability, because it's
written in Python and because I'm familiar with TAL templates.

There is one problem though and I would appreciate opinions on 
how difficult it might be to work around it.

The problem is that Roundup stores issue comments in files rather
than in the database.  Quite a bit of past experience here has
convinced many that sooner or later they will become separated.
(I have some archives of an older app's database but attachments
saved as files are nowhere to be found. :-(.

Thus I would like to somehow modify Roundup to save comments 
and other attachments in the database.  I have seen comments 
around (on wiki, in code?) that such might be desirable as a
future enhancement.

In my case I would be happy with something more hackish than
a production-quality modification that could be included in 
Roundup's distribution -- perhaps replacing the code in 
blobfiles.py with code that would save to the database instead
of files -- and would be willing to undertake the maintenance
burden of merging my local changes with new Roundup versions 
-- provided I could accomplish what I want without too extensive
hacking.

So from you all who know the code better than me (who hasn't
spent more than 30 minutes looking at it), how much work do 
you think it would take, and what would be the best approach?

Thanks for any thoughts you're willing to share.

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