From: "David A. Black" <dblack@...>
Date: 2009-09-23T21:37:34+09:00
Subject: GDBM plus classes other than String

Hi --

As an offshoot of some playing around with ActiveModel (part of Rails
3) and adding non-relational database backends to Rails, I've spawned
a little project called GDBMP, which lets you use non-string keys and
values in GDBM files.

I literally don't remember why I chose to add "P".

Anyway, it lets you do things like:

   g = GDBMP.new("/tmp/myfile.gdbmp")
   g[123] = :abc
   g[:def] = 12.3

etc. The way it works is to store class names along with keys and
values, and then perform conversions on the way out.

It's pretty much hard-wired to a handful of classes, and pretty
simple-minded about the conversions, though you can also constrain
keys to have their values be of certain classes:

   g.constrain_key(:year, Fixnum)
   g[:year] = "1999"
   g[:year]    # 1999 (the integer)


You can find it on github:

   http://github.com/dblack/gdbmp


David

-- 
David A. Black, Director
Ruby Power and Light, LLC (http://www.rubypal.com)
Ruby/Rails training, consulting, mentoring, code review
Book: The Well-Grounded Rubyist (http://www.manning.com/black2)