From: Robert Klemme <shortcutter@...>
Date: 2008-04-29T02:00:16+09:00
Subject: Re: creating and naming variables dynamic

On 28.04.2008 17:03, Tarscher wrote:
> Hi all,
> 
> I want to create a variable dynamic. I have defined some classes and
> depending on data I get from a database I need to construct an object
> eg:
> 
> now I do
> 
> if type=="car"
>   variab = Car.new
> elsif type="boat"
>   variab = Boat.new
> end
> 
> can I do something like
>  variab = Instance.new(type)

More options

factory = {
   "car" => Car,
   "boat" => Boat,
}

var = factory[type].new

> Following this: can I give dynamic variablenames?
> now I do
> if type=="car"
>   car_string = Car.new
> elsif type="boat"
>   boat_string = Boat.new
> end
> 
> can I do something like
>  dynamicpart_string = Instance.new(type)

Better use a Hash for this

vars = {}
vars[type] = factory[type].new

Cheers

	robert