if json.errors is an array, you don't need $A.
$A is for iterables only (like dom node collections, for example).
Best,
Tobie
On Nov 19, 5:01 am, "Jerod Venema" <[EMAIL PROTECTED]> wrote:
> It looks like json.errors should be an array, right?
>
> var json = {"errors":[]}
>
> json.errors is an array...so $H(json.errors) is probably not what you want.
>
> Try $A(json.errors);
>
> You'll have to adjust your each as well...
>
> $A(json.errors).each(function(err){
> console.log(err.anError); //outputs "aMessage"
>
> });
>
> Jerod Venemahttp://www.frozenmountain.com/
>
>
>
> On Tue, Nov 18, 2008 at 6:48 PM, laf <[EMAIL PROTECTED]> wrote:
>
> > So I have this function. It toggles error messages after an AJAX call
> > for validation. It works fine in prototype 1.5,
> > but an upgrade to 1.6 has broken it and I have not been able to work
> > out why.
>
> > onFormSuccess : function(transport)
> > {
> > var json = transport.responseText.evalJSON(true);
> > var errors = $H(json.errors);
>
> > if (errors.size() > 0) {
> > this.form.down('.error').show();
> > errors.each(function(pair) {
> > this.showError(pair.key, pair.value);
> > }.bind(this));
> > }
> > else {
> > this.form.submit();
> > }
> > }
>
> > When the JSON received looks like {"errors":[{"anError":
> > "aMessage"}]}, errors.size() works which means the errors are
> > displayed as they are supposed to, but when the json received looks
> > like {"errors":[]}, then errors.size() falls over as errors is an
> > undefined object.
>
> > Basically, what is the correct way to get the size of the returned
> > JSON data reliably with Prototype 1.6? $H() does not work when errors
> > is empty. I know the hash was one of the biggest changes moving to
> > 1.6.. I'd appreciate any light someone can shed on this.
>
> > I have tried checking if its null, or its length with no success.
>
> > Regards,
> > laf.
>
> --
> Jerod Venema
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