No, adding copy didn't fix your code.
Removing the 2 did. (Although, I am not really
sure it is fixed...)
The problem is that find takes two arguments,
not three, as you seem to think in this line:
find database 2 chknum
This just returns the value of chknum.
You had obviously set chknum sometime in your testing
on the console. I'll put brackets to show how the
above line was evaluated:
(find database 2) (chknum)
The first value returns none, the second value returns
"9898", which must have been what you set it to at
some point.
In the 'all block, you actually had three values to
check, not two, as I am sure you thought you had:
rec: all [find database code find database 2 chknum]
I will put brackets to show how it was evaluated.
rec: all [(find database code) (find database 2) chknum]
So 'all would have returned at the second value (none).
Perhaps you meant to write:
find database/2 chknum
That means to look in the second value of the hash!
Anton.
> I found the solution---add the word copy.
>
> rec: all [find database code copy (find database chknum)]
>
> For some reason I keep having to learn that lesson again and again. :>)
>
> Louis
>
> At 02:43 PM 4/12/2002 -0500, you wrote:
> >Rebol friends,
> >
> >I have the following line of code to check to make sure that a
> record does
> >not already exist, but it always returns none:
> >
> >rec: all [find database code find database chknum]
> >
> > >> find database code
> >== make hash! ["boo"
> > make object! [
> > code: "boo"
> > chknum: "9898"
> > date: 19-Jan-2001
> > amount: $100....
> > >> find database 2 chknum
> >== "9898"
> > >> rec: all [find database code find database 2 chknum]
> >== none ; Why is this none????????????????
> >
> >Futher testing shows where the failure is happening:
> >
> > >> rec: all [find database code]
> >== make hash! ["boo"
> > make object! [
> > code: "boo"
> > chknum: "9898"
> > date: 19-Jan-2001
> > amount: $100....
> > >> rec: all [find database 2 chknum]
> >== none
> > >> find database 2 chknum
> >== "9898"
> > >> all [find database 2 chknum]
> >== none
> > >> find database 2 chknum
> >== "9898"
> > >>
> >
> >Why?
> >
> >Louis
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