Thanks for all your help guys. I opted for strings and using the YesNoFormat() trick in my Dao. Giggle, I needed a quick out! ;)
Cheers, Pete (aka lad4bear)
On 20/09/05, Nando <[EMAIL PROTECTED]> wrote:
Barney,
I think you should put this little piece up on your blog! I remember reading
an analysis of why it's very unlikely that CF will ever see null support
because it's loosely typed. I think Sean wrote it, but i'm not sure. So i
think this is going to be the way to go for cases like these.
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Barney Boisvert
> Sent: Tuesday, September 20, 2005 9:29 PM
> To: [email protected]
> Subject: Re: [CFCDev] Default for Dates in a Transfer object
>
>
> If you don't require a date, then you can't qualify the argument as a
> date, because CF has no concept of NULL. The closest you can get is
> saying "" is equivalent to null, and then using the string type as you
> propose. You should do validation inside your method like this:
>
> <cfif len(arguments.myDate) GT 0 AND NOT isDate( arguments.myDate)>
> <cfthrow type="IllegalArgumentException" message="myDate is not a
> valid date" />
> </cfif>
>
> That way you preserve your argument type checking, even though CF is
> forcing you to do it manually.
>
> If you ask me, CF's lack of NULL is really quite a burden. CF is a
> loosely typed language, which is fine, but then they came and added in
> strong typing all over the place, but didn't provide the ability to
> use NULL, so the strong typing is often either cumbersome or simply
> unusable. This is a perfect example of that.
>
> cheers,
> barneyb
>
> On 9/20/05, Peter Hardy < [EMAIL PROTECTED]> wrote:
> > Hi guys,
> >
> > I've seen this on the forum before but I'm can't remember the
> answer at all.
> >
> > I've created a transfer object that takes amongst others a
> couple of date
> > parameters. Trouble is, they are optional parameters so
> sometimes they are a
> > valid date and sometimes they are equal to "". If my cfargument
> type to date
> > cf just throws an exception.
> >
> > How do I handle this? Shoudl I just store it as a string?
> >
> > Cheers, Pete (aka lad4bear)
>
> --
> Barney Boisvert
> [EMAIL PROTECTED]
> 360.319.6145
> http://www.barneyb.com/
>
> Got Gmail? I have 100 invites.
>
>
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