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 Venema
http://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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