[REBOL] Re: R: Re: Links ? Pointers ?
From: tim-johnsons:web at: 27-Aug-2009 18:28
* Maxim Olivier-Adlhoch <moliad-gmail.com> [090827 18:07]:
> so let's say this is what your app should be:
>
> person: context [
> uid: 666
> name: "me"
> ]
>
Hi Maxim: See employee/uid below:
> employee: context [
> uid: user/uid
> title: "Workoholic"
> ]
Should that be person/uid ?
thanks
tj
> managers: [
> ceo: employee/uid
> ]
>
> now as you know, changing the uid in person won't be reflected in
> employe or managers... so you're screwed!
>
> ----
>
> Look at this modified version using function trick:
>
> person: context [
> uid: func [/set value][data: [#[none]] either set [data/1: value][data/1]]
> name: "me"
> ]
>
> employee: context [
> uid: get in person 'uid
> title: "Workoholic"
> ]
>
> managers: context [
> ceo: get in employee 'uid
> ]
>
> >> person/uid/set 222
> == 222
> >> managers/ceo
> == 222
> >>
>
> this is one way to use the function hack, but there are many others,
> and they depend on the application itself.
>
> there are a few little details when using the hack, but usually, its
> pretty invisible.
>
> Hope this helps :-)
>
> -MAx
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--
Tim
tim-johnsons-web.com
http://www.akwebsoft.com
