Liferay <aui:validator> for dates? - liferay

Question

I'm trying to make a simple custom aui:validator for the birthday field on the registration form but it is simply not working. Any ideas?
<aui:input name="birthday" value="<%=birthday%>">
<aui:validator name="custom" errorMessage="some-error">
function (val, fieldNode, ruleValue) {
return false;
}
</aui:validator>
</aui:input>
What I'd like to achieve is to check if the user is 18 years old at the registration.
Any hints would be greatly appreciated!

Answer 1

Here i am validating that selected date is greater than today's date.You can change as per your need.
<script>
AUI().ready('aui-form-validator', 'aui-overlay-context-panel', function(A) {
A.mix(
YUI.AUI.defaults.FormValidator.RULES,
{
dateCustomRule: function(val, fieldNode, ruleValue) {
var val = new Date(Date.parse(val,"MMM dd yyyy"));
var today=new Date();
return (val>today);
}
},
true
);
var validator2 = new A.FormValidator({
boundingBox: document.<portlet:namespace/>form,
fieldContainer: 'p',
rules: {
<portlet:namespace />dueDate:{
required: true,
dateCustomRule:true
}
},
fieldStrings: {
<portlet:namespace />dueDate: {
required: 'Due Date Required',
dateCustomRule: 'Date must be greater than Today\'s Date'
}
},
on: {
validateField: function(event) {
},
validField: function(event) {
},
errorField: function(event) {
},
submitError: function(event) {
var formEvent = event.validator.formEvent;
var errors = event.validator.errors;
},
submit: function(event) {
var formEvent = event.validator.formEvent;
return false;
}
}
});
});
</script>

Answer 2

Unfortunately I wasn't able to use Lucky Boy's solution either. For some mysterious reason it didn't work at the create_account.jsp file.
As a workaround I create a new exception in the header of the file:
<liferay-ui:error exception="<%=NotOldEnoughException.class%>"
message="Not old enough" />
And made the checking in a hooked version of the EditUserAction file.

Answer 3

the correct way to make the validator would be something like this.
I hope it helps you,
<aui:validator name="custom" errorMessage="Tienes que ser mayor de 18 años">
function (val, fieldNode, ruleValue) {
var val = new Date(Date.parse(val,"MMM dd yyyy"));
var adult=new Date();
adult.setFullYear(adult.getFullYear() - 18)
return (val<adult);
}
</aui:validator>