Problem that I have always had with the Form.Observer is that it
doesn't return the form element which was updated, just the actual
form. Not that useful. While back I got the code below from someone (I
think on this Google Group) which will return the element, however it
doesn't work on forms with radio buttons, and will instead start an
infinite loop of returning events.
How do you deal with getting the element on a form observer? Do you
have a better solution? Thanks.
Form.Observer = Class.create(Abstract.TimedObserver, {
getValue: function() {
return Form.serialize(this.element, true);
}
, execute: function() {
var value = this.getValue();
for (var prop in value) {
if (value[prop] != this.lastValue[prop]) {
this.callback(this.element,
Object.toQueryString(value),
this.element.down('[name="'+ prop +'"]'));
this.lastValue = value;
break;
}
}
}
});
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