get value of rich:calendar for validation

jmaglio Jul 17, 2009 4:48 PM

Hi
I am trying to get the date value from a <rich:calendar> to validate that it is before another date, but it is null. Here is the general idea, please let me know what is wrong:

<h:form id="searchForm">

<rich:calendar id="fromDate" />

<rich:calendar id="toDate"
validator="#{bean.checkDates}">
<f:attribute name="fromDate" value="searchForm:fromDate" />
</rich:calendar>

</h:form>

public void checkDates(FacesContext context, UIComponent component, Object value) {

String fromDate = (String) component.getAttributes().get("fromDate");
// This 'date' is null:
HtmlCalendar date = (HtmlCalendar) context.getViewRoot().findComponent(fromDate);
Date startDate = (Date) date.getData();

if( !(startDate.before(endDate) ){
...
}
}

Thanks in advance
J

1. Re: get value of rich:calendar for validation

alexsmirnov Jul 17, 2009 5:50 PM (in response to jmaglio)
That is common JSF issue - multi-field navigation is very hard to implement.
At the PROCESS_VALIDATORS phase 'value' attribute not yet assigned, therefore you get invalid date for a 'startDate' component.
You should use value argument from validate method call for the both dates. Suggested implementation is:

<rich:calendar id="fromDate" validator="#{bean.checkFromDate}" /> <rich:calendar id="toDate" validator="#{bean.checkToDate}"> </rich:calendar>

The bean should be request scope and 'checkFromDate' does nothing but store submitted date into a some field.
in the 'checkToDate' method you can compare both values and throw validation exception for incorrect order.
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2. Re: get value of rich:calendar for validation

nbelaevski Jul 18, 2009 7:54 AM (in response to jmaglio)
I guess the problem is
Date startDate = (Date) date.getData();
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3. Re: get value of rich:calendar for validation

jmaglio Jul 22, 2009 2:10 PM (in response to jmaglio)

Thanks, Alex. That worked!
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