Ruby Best Practices - The Complete Class
A remark: we enabled comment moderation because the blog was recently target of spam. You probably have not seen much of it because we were pretty quick in removing it manually. So if your comment does not show up please be patient. There are some basic concepts (often called “aspects”) that need to be implemented for many classes although not all classes need all (or even any) of them: initializa
Ruby Best Practices - The Decorator Delegator Disco
As promised, we’re back with more design discussion and hopefully some interesting ideas. Let’s start with a quick recap of what has happened so far. First, Sandi Metz posted on her blog about type specific coupling that a case statement can introduce. Her proposed solution encouraged us to pass the responsibilities down to the individual objects, which is certainly desirable. Aaron Patterson got
Practicing Ruby - Should I Tap that Hash? (Ruby 1.9 Style)
UPDATE: Be sure to read the comments. I’ve already learned a lot from them, and you might, too. Though the Ruby Best Practices book covers Ruby 1.9, it is decidedly not a “Ruby 1.9 Best Practices” book. The reason for this, of course, is that common idioms for Ruby 1.9 haven’t evolved yet. Let’s work together to change that. Every week until Ruby 1.9.2 comes out, I’ll be coming up with short, mana
Ruby Best Practices- The Universe between begin and end
This time we’ll explore the space between begin and end. Today’s article won’t be as much about individual best practices but rather I will try to explore various aspects of begin ... end blocks so you can decide how to make best use of this tool. In fact, there are so many aspects that this construct sometimes reminds me of a swiss army knife – not so much because you can do everything with it bu
Ruby Best Practices - The Complete Numeric Class
As announced in the previous article we will look at a complete number class today. I will use the example of a integer number which, when printed, will show up as hex number (as opposed to the decimal presentation of Fixnum and relatives). As before the main point is not sophisticated logic or usefulness of the class. Instead I will keep the logic simple so we can focus on the aspects I try to co
Practicing Ruby - Issue #9: Uses for Modules (2 of 4)
Originally published as part of the Practicing Ruby newsletter on December 10, 2010. Most of these issues draw inspiration from discussions and teaching sessions at my free online school, Ruby Mendicant University. You should follow @seacreature on twitter if you want to keep up with my more recent projects. Using Mix-ins to Augment Class Definitions Although knowing how to use modules for namespa
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