Ruby Singleton Objects
Here’s another freebie from the deep RubyTapas stacks. This one is about a truth of object modeling that we don’t often talk about: not every object needs to have state….
Don’t throw away invalid data
Recently I saw a wonderful talk about domain modeling in F#, by Scott Wlaschin. Here’s an older version of it. It was a superbly executed presentation, crystal clear and compelling….
Enough With the Service Objects Already
A critique of the emerging advice to encapsulate business domain actions in “Service Objects”.
DisplayCase Gem Now Available
Announcing the display_case gem, an implementation of the Exhibit pattern described in (and extracted from) “Objects on Rails”.
End your OOP Confusion with the Design Pattern Classifier
The Ruby community has seen a renaissance of interest in classic Object-Oriented thinking lately. We’re talking about Presenters, and DCI, and Data Objects. But with these new discussions come new problems. Namely:…
Null Objects and Falsiness
Thank you to Ben Hamill for sending me a question that prompted this post. Checking for object presence Very often in Ruby code, we would like to execute some action…
Full Exploitation
“Full exploitation” is essentially a pattern in itself, and one we will come back to repeatedly. Whether it is applied to software development, architecture, or music composition, exploiting a good…