Edit Rails ActiveRecord JSON attributes in html forms
03 Feb 2015
ActiveRecord PostgreSQL JSON storage can be used to replace has_many relationships and accepts_nested_attributes_for on Rails models. This can be helpful if the associated objects are always needed.
PostgreSQL indexing OVERLAPS query with tsrange for scheduling
20 Nov 2014
PostgreSQL offers some great ways to work with time based queries. The most performant way to use them is not obvious given the plethora of options available in PostgreSQL.
How to Make a Traffic Light Build Indicator
12 Feb 2013
Using Arduino to show build status for multiple for multiple Janky builds.
Installing PostgreSQL 9.1 on Debian 6
02 Aug 2012
using apt-get to install PostgreSQL 9.1 on Debain 6 (Squeeze)
Understanding how Rack uses Ruby lambdas
28 Apr 2012
A look at the internals of how Rack builds middleware for flexible request processing.