From: wconrad@...
Date: 2002-05-04T07:02:58+09:00
Subject: Re: dynamically assigning instance variables

This way, which is probably not the best way, seems to do something:

wconrad@pluto:~/lab/foo1$ cat foo.rb
#!/usr/bin/ruby

class Foo
  
  def initialize(hash)
    for key, value in hash do
      eval "@#{key}=#{value.inspect}"
    end
  end

end

p Foo.new({"i"=>1, "s"=>"blah"})

wconrad@pluto:~/lab/foo1$ ./foo.rb
#<Foo:0x402568ec @s="blah", @i=1>

        Wayne Conrad

On Sat, May 04, 2002 at 06:43:10AM +0900, Berger, Daniel wrote:
> Hi all,
> 
> Yep, still trying to unwrap my brain from Perl and re-wrap it in Ruby...
> 
> Is there a way to dynamically assign instance variables?
> 
> class SomeClass
>    def initialize(hash)
>       hash.each do |key,val|
>          @#{key} = val # Doesn't work
>       end
>    end
> end
> 
> Is there a better way to do this?