From: Robert Klemme <shortcutter@...>
Date: 2009-08-24T15:25:05+09:00
Subject: Re: Stupid OpenStruct question

On 24.08.2009 06:02, Terry Smith wrote:
> got it
> 
> ff = s.fields
> 
> ff.each{|g|
>   puts s.instance_eval g
> }
> 1
> 2
> 
> Terry Smith wrote:
>> Ok - I know how to get the fields of an Openstruct object like so
>>
>> class OpenStruct
>>   def fields
>>     @table.keys.map{|k| k.to_s}
>>   end
>> end
>>
>> a = OpenStruc.new()
>> a.foo = 1
>> a.bar = 2
>>
>> a.fields -> ["foo", "bar"]
>>
>> Great - ok how do I WORK with these once I have them?

Just a remark: if your processing is mainly bases on keys this way then 
a Hash might the better data structure.  IMHO an OpenStruct is best used 
when you are lazy or do not know all the fields that you are going to 
use beforehand.  I find this especially useful during development, you 
can stuff in more and more fields but maybe later change it to a regular 
class (or Struct generated class).

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/