xquery- filtering with dynamic date - xquery

Question

I have the following code:
<Table><ColumnHeaders>
<ColumnHeader name='Title' type='xs:string' />
<ColumnHeader name='EventDate' type='xs:date' />
<ColumnHeader name='today' type='xs:date' />
<ColumnHeader name='day-week' type='xs:integer' />
<ColumnHeader name='dur-end' type='xs:integer' />
<ColumnHeader name='start-date' type='xs:date' />
<ColumnHeader name='end-date' type='xs:date' />
</ColumnHeaders>
<Data>{let $today := fn:current-date()
let $day-week := functx:day-of-week($today)
let $dur-end := 6-$day-week
let $start-date := xs:date($today)-(xs:dayTimeDuration('P1D')*$day-week)
let $end-date := xs:date($today)+(xs:dayTimeDuration('P1D')*$dur-end)
for $ancestor0 in $queryresponse//*:row
where ($ancestor0/#ows_EventDate)>=$start-date
return<Row>
<Title>{fn:data($ancestor0/#ows_Title)}</Title>
<EventDate>{fn:data($ancestor0/#ows_EventDate)}</EventDate>
<today>{fn:data($today)}</today>
<day-week>{fn:data($day-week)}</day-week>
<dur-end>{fn:data($dur-end)}</dur-end>
<start-date>{fn:data($start-date)}</start-date>
<end-date>{fn:data($end-date)}</end-date>
</Row>}
</Data></Table>
after adding the where clause in the "for statement", the xquery failed with the following error:
ZorbaDynamicException failed. Zorba engine encountered a dynamic error.
Error type: XQuery Engine error. Passed item (of type UNTYPED_ATOMIC) is not castable to passed target type (xs:date).
can someone please help me in fixing this issue?

Answer 1

The value resulting from $ancestor0/#ows_EventDate is not castable to a date. You can use the parse-date function contained in Zorba's datetime module (http://www.zorba.io/documentation/2.9/modules/www.zorba-xquery.com_modules_datetime.html) to convert the string into a date.
For example,
d:parse-date($ancestor0/#/#ows_EventDate/text(), "%D")
if your date is formatted as MM/DD/YY.