Mixins

[Rong]

I have the following code separated in 2 files.

module UsefulFeatures

def class_name
self.class.to_s
end
end

-------------------------------------

require UsefulFeatures

class Person
include UsefulFeatures
end


x = Person.new
puts x.class_name

Every time I try to run this I get the following error:
Test2.rb:1:in `<main>': uninitialized constant UsefulFeatures
(NameError)

What am I doing wrong?

 

[Tim Hunter]

I have the following code separated in 2 files.

module UsefulFeatures

def class_name
self.class.to_s
end
end

-------------------------------------

require UsefulFeatures

class Person
include UsefulFeatures
end


x = Person.new
puts x.class_name

Every time I try to run this I get the following error:
Test2.rb:1:in `<main>': uninitialized constant UsefulFeatures
(NameError)

What am I doing wrong?

require's argument is a file name

require 'useful_features'

 

[Rong]

Nevermind. I found it.

 

[Bertram Scharpf]

Hi,

Am Dienstag, 08. Sep 2009, 15:45:28 +0900 schrieb Rong:

Nevermind. I found it.

Sorry, this information is not very helpful. Next time please post
the solution in case somebody googles for it.

Bertram

 

[Marc Heiler]

Sorry, this information is not very helpful. Next time please post

the solution in case somebody googles for it.

But the solution is quite easy - he did not require the file properly,
else the constant would be known.