Biblio Wolf (Bwolf for firends) is a webapp app for managing a book collection. BWolf is written in python using the Django web framework, and it is born from a Customer request. BWolf is open source, and you can get a full description here including links to downloads. I will mantain a blog of all the work I will do. In the last two months I set up a Subversion Repository and played a little with Django.

The installation was fine. I have some problems with the sqlite3 driver and I ought to switch back to the PostreSQL driver. I initially planned sqlite3 as deployment platform.I have to change my mind after losing over three hours trying to resolve a linking problems on the production machine. By the way with PostgreSQL I will have more powerful exporting capabilities

In my code ramblings during the developement of Code Zauker, I ended up studing a bit NoSql  database.

Code zauker started using Redis, because Redis is a very bold memory-based no-sql db. Redis also support complex data type like sorted set, lists and so on, which was very userful. Anyway I needed a very fast way of doing statistics on data collected by code zauker, for inspecting data and finding out new feature I’d like to add to it. Worst, my current pocket pose a hard limit on a redis instance in terms of available RAM. So I started thinking a lot about a redis drop-in replacement for Code Zauker.

Abstract: Make a database which can be store historic modification is often considered a “secondary” activity, but bad design leads to databases that are difficult to optimize and often not very understandable. In this article we illustrate a simple method that respects the dictates of relational theory & is easy to understand. As a plus we will show it on SQLite, a small but powerful database system.