From: Tom Cloyd <tomcloyd@...>
Date: 2009-04-19T00:46:28+09:00
Subject: Re: simple module method call question

Suraj Kurapati wrote:
> James Coglan wrote:
>   
>> You've defined an instance method, not a module method. The method as 
>> you define it will appear in classes that use 'include Utils'. To get a 
>> module method, define it on self:
>>
>> module Utils
>>   MENU = [ ... ]
>>
>>   def self.orph_chk
>>     # ...
>>   end
>> end
>>     
>
> Alternatively, you could use module_function() to make the instance 
> method a class method on the module:
>
> module Utils
>   def orph_chk
>     # ...
>   end
>
>   module_function :orph_chk
> end
>
>
> Now you can either call the method directly (Utils.orph_chk) or mix it 
> in (include Utils; orph_chk).  So you can have your cake and eat it too!
>   
Hmmm. This is most interesting. Ruby amazes me every day. So much 
built-in cleverness. And now this, which I've never seen anywhere. I'll 
study up on it. Thanks very much for the heads up,

Tom

-- 

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