Does the fact that Rails have an MVC approach mean that is has dependency injection?
Or is there a reason that we don't talk about dependency injection in Rails?
If Rails does have dependency injection, what does it consist of?
+9
A:
Dependency injection is usually unnecessary with Ruby. Jamis Buck blogged extensively about the reasons why. Well worth a read.
John Topley
2010-02-03 09:25:00
Jamis was really saying that there's no need for the heavy-handed DI frameworks frequently in use with Java. He didn't say that it's unnecessary in Ruby - to the contrary, DI can be used in Ruby to reduce coupling and improve testability. It's just not AS necessary.
scottburton11
2010-02-03 18:40:08
+2
A:
Dependency Injection is a paradigm, so it exists in every object-oriented language.
Whether there are DI frameworks for Ruby - check this question
Bozho
2010-02-03 09:25:03
A:
I'd say that you don't need such a thing with ruby... but if you really want to, some people have workarounds.
marcgg
2010-02-03 09:26:56