On Mon, Feb 15, 2010 at 06:31:24PM -0600, Jesse Luehrs wrote:
> On Mon, Feb 15, 2010 at 04:25:54PM -0800, Karen Etheridge wrote:
> I'm not sure what problem you're having, since you didn't post the
> error message,
Oops sorry, it was:
Attribute (date) does not pass the type constraint because: Validation
failed for 'MaybeDateTime' failed with value 0000-00-00 00:00:00 (not isa
MaybeDateTime) at ...
> but you probably need the attribute definition to happen
> after the types are defined... pretty sure this would assume you have a
> class named 'MaybeDateTime'.
Doh, of course! After moving the 'has' line to the end of the module, now I
get:
Can't call method "isa" on an undefined value at Object.pm line 15.
...where line 15 is the "where" line of the subtype 'MaybeDateTime'
definition. However, I see that I'm dereferencing $_ before checking its
definedness, so if I switch to:
=> where { not defined $_ or $_->isa('DateTime') };
...then the object constructs properly! Hurrah!
(I suspect that perhaps some of the coercions I have created are
unnecessary; I'll look into that next to see if I can remove them.)
doy++ :)
--
"Whoever acquires knowledge but does not practice
it is as one who ploughs but does not sow." - Sa'di
. . . . .
Karen Etheridge, ka...@etheridge.ca GCS C+++$ USL+++$ P+++$ w--- M++
http://etheridge.ca/ PS++ PE-- b++ DI++++ e++ h(-)
