Guide to CodeIgniter databases

Why are there no, in-depth tutorials covering databases in CodeIgniter?

I?m talking the full nine miles, including Models, ActiveQuery, Configuration, Security, seriously, the full nine miles. Yes the CodeIgniter user guide is spectacular, yes, most people know how to do this stuff anyway, but, I did what I could. I would like to introduce you to?

The CodeIgniter Guide To Databases.

http://jamierumbelow.net/blog/the_guide_to_ci_databases/