Comments on: Ruby callbacks

By: Prodis a.k.a. Fernando Hamasaki

Prodis a.k.a. Fernando Hamasaki — Sat, 31 Mar 2012 22:06:19 +0000

In included or extended hooks, you don't need call extend method with send, because extend is a public method.

By: Dojos: One conversation in the room not in the driving seats | InternetRSSFeeds

Wed, 22 Jun 2011 15:11:43 +0000

[...] memorable moments of a dojo. I remember this happening when Ola Bini gave a spontaneous lecture on Ruby’s object lifecycle event hooks. It started with someone using an unusual technique and it ended up being a really enlightening [...]

By: trans

trans — Fri, 29 Apr 2011 01:12:58 +0000

@José You can either override initialize if it’s a subclass, or you can define a new `new` method.

class X
class << self
alias :_new, :new
def new(*args)
o = _new(*args)
# … after initialize code …
return o
end
end

By: Dojos: One conversation in the room not in the driving seats « Echo One

Dojos: One conversation in the room not in the driving seats « Echo One — Fri, 18 Feb 2011 00:08:03 +0000

By: khelll

khelll — Sat, 06 Feb 2010 17:31:09 +0000

@billy, cause mix is a Symbol there. It can't be called directly. Another note, you can't pass methods directly just like a one can do in Python or Javascript and then call it directly. The maximum u can do is to pass the name(symbol or string) and call it via send or eval methods, Or pass method object and call it from there. Anyway check this post on dynamic method invocation in Ruby.

By: billy

billy — Sat, 06 Feb 2010 17:12:14 +0000

Why did you use “self.send :mix, colors ,&block” instead of calling the function “normaly”.

btw, thanks for the nice post

By: José Valim

José Valim — Mon, 16 Feb 2009 15:45:18 +0000

Great post!

I found it because I’m searching for an after_initialize class callback in Ruby. In other words, it should be fired after loading a class, any idea?

Keep it up!

By: Phani

Phani — Tue, 30 Dec 2008 05:27:23 +0000

Hi, nice post and neat clarity about what you are conveying. Keep up the good work and as Mathieu point out, thanks for helping the community! Looking forward to your upcoming posts on Ruby.

By: khelll

khelll — Sun, 28 Dec 2008 19:30:58 +0000

Thanks @ Mathieu

By: Mathieu

Mathieu — Sun, 28 Dec 2008 19:28:58 +0000

Khaled, I just discovered your blog and you are writing amazing technical posts. Great job and thanks for helping the Ruby community!