From: Brian Takita <brian.takita@...>
Date: 2005-08-23T13:32:30+09:00
Subject: Re: Named Arguments

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Here is how you can set the instance variable @test

class Test
attr_accessor :test

def initialize(args)
@test =3D args[:test] unless args[:test].nil?
end
end

t =3D Test.new({:test=3D>'test one'})
p t.test


This way is more generic way to set the instance variables:

class TestGeneric
attr_accessor :test, :another_test

def initialize(args)
args.each do |k, v|
self.instance_variable_set("@#{k.to_s}", v)
end
end
end

t =3D TestGeneric.new({:test=3D>'test two', :another_test=3D>'test two agai=
n'})
p t.test
p t.another_test


Of course, there may be a better way to do this.

:Brian

On 8/22/05, Kevin Olbrich <kevin.olbrich@duke.edu> wrote:
>=20
> I was working through the new version of the pickaxe tonight and decided=
=20
> to
> try the 'named arguments' feature. The book suggests that one can simply
> pass a hash with the names of local variables and they with automagically
> get set to the hash values.
>=20
> I was not able to get this to work. Am I missing something here, or is=20
> this
> feature not working as described?
>=20
> _Kevin
>=20
>=20
>

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