My wife Naoko wrote a reply to this post. It was fun comparing how different the podcasts we listen to are. :)
First, I’d like to plug a podcast that I’m a semi-regular guest on, techsTalking(5417), a podcast where technology people just talk about whatever is on our mind.
Here are some other podcasts that I’m currently subscribed to:
The Incomparable -- a podcast about anything geeky. Star Wars? Check. Star Trek?
Edit 2016/1/9 I have updated these instructions for upgrading from PostgreSQL 9.4 to 9.5.
As you may know, I am a big PostgreSQL user and fan. I also use Homebrew to manage 3rd party software packages on my Mac. PostgreSQL 9.4 was just released a couple days ago with some really cool features – a binary-format JSON datatype for speed and flexibility (indexes on JSON keys? Of course.), and some really good performance improvements.
Kerbal Space Program -- KSP for short – is an incredibly addictive game about… Space exploration! In the game, you are in charge of the space program on planet Kerbin. Kerbin is located in a solar system quite similar to our own solar system, with a few differences. I’ve been playing this game for a few months, and finally decided to write a blog post about my experiences and thoughts.
If you aren’t familiar with Marshal.dump and Marshal.load, you probably should be. It’s used to serialize Ruby objects into binary data - mostly caching.
Now, if you’re trying to implement a Russian-doll caching system with objects, you probably have run into the issue of eager-loading associations using #includes not being cached.
my_data = Rails.cache.fetch('an_object') do MyData.where(condition: 1).includes(:user).first end my_data.user # On cache miss: # => SELECT "my_datas".* FROM "my_datas" WHERE "condition" = 1 ORDER BY "id" ASC LIMIT 1 # => SELECT "users".
There have been more than a few times where someone needs to send a big file to me. So, I made a quick and dirty tool to allow anyone to upload files directly to a S3 bucket.
No more shuffling links around, worrying about them expiring, and wondering whether the data stored is safe or not.
Fork away!
Source code
In Ruby 2.0.0 patchlevel 195, you can no longer mix old- and new-style hash syntaxes in method arguments.
For example:
Wrong method hello: 'there', :goodbye => 'goodnight' Right method { hello: 'there', :goodbye => 'goodnight' } or
method :hello => 'there', :goodbye => 'goodnight' Apparently this has been fixed in another patch to Ruby 2.0.0, but that doesn’t really matter, since p195 is out right now.
Source: https://gist.github.com/stephencelis/5595842
Rubinius is an implementation of the Ruby language spec. I’ve been using it recently for a project, and I’ve been liking it so far. Here’s a few thoughts I’ve been having while using it.
Philosophy The Core Rubinius, in its core, is written in C++ and uses LLVM (Low Level Virtual Machine). Without getting too technical, it translates the Ruby code that you write into efficient machine code, then executes the machine code directly on the CPU.
There’s a Japanese word I like, “謎” - the dictionary defines it as “a mystery”, “riddle”, or “enigma” - I like to define it as “something that makes no logical sense whatever”. Here is a part of WordPress that I think makes no logical sense whatever. Inconsistent Naming Convention In The Loop, as WordPress likes to
