Implicitly setting an entity field on POST

I have created a simple project:

Quote:

project --topLevelPackage com.me.sample --projectName HideDateTest
persistence setup --provider HIBERNATE --database HYPERSONIC_IN_MEMORY
entity --class ~.bizlogic.Note
field string --fieldName mynote --notNull
field date --fieldName datenoted --type java.util.Date --notNull
controller all --package ~.web

I want the "datenoted" field to be automatically set by the server when it receives a post request.

I modified src/main/webapp/WEB-INF/views/notes/create.jspx to comment out the field:datetime line:

Quote:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<div xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:field="urn:jsptagdir:/WEB-INF/tags/form/fields" xmlns:form="urn:jsptagdir:/WEB-INF/tags/form" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:spring="http://www.springframework.org/tags" version="2.0">
<jsp:output omit-xml-declaration="yes"/>
<form:create id="fc_com_me_sample_bizlogic_Note" modelAttribute="note" path="/notes" render="${empty dependencies}" z="WGwma68nLsNrRuliGQO2oGmVPQA=">
<field:input field="mynote" id="c_com_me_sample_bizlogic_Note_mynote" required="true" z="IIzti0XOuhy8deKLB3TliEgGYL0="/>

</form:create>
<form:dependency dependencies="${dependencies}" id="d_com_me_sample_bizlogic_Note" render="${not empty dependencies}" z="Wchem3NfWbtZotzuXcKsoxr9hIc="/>
</div>

I then modified src/main/java/com/me/sample/web/NoteController_Roo_Controller.aj to automatically set the date:

Quote:

@RequestMapping(method = RequestMethod.POST)
public String NoteController.create(@Valid Note note, BindingResult result, ModelMap modelMap) {
System.err.println("Inside create function.");
if (result.hasErrors()) {
System.err.println("NoteController_Roo_Controller. aj::create() bindingresult has errors!.");
modelMap.addAttribute("note", note);
addDateTimeFormatPatterns(modelMap);
return "notes/create";
}
note.datenoted = new Date();
note.persist();
return "redirect:/notes/" + note.getId();
}

However, it is running the BindingResult's "result.hasErrors()" and never gets to the persist code. What do I need to edit to fix this? I tried to add a hidden field, but I did it wrong:

Quote:

<field:hidden field="datenoted" id="c_com_me_sample_bizlogic_Note_datenoted" required="true" z=""/>

Quote:

SEVERE: Servlet.service() for servlet jsp threw exception
org.xml.sax.SAXException: No tag "hidden" defined in tag library associated with uri "urn:jsptagdir:/WEB-INF/tags/form/fields"

Also, am I suppose to be editing NoteController_Roo_Controller.aj, or is this file suppose to be managed by the roo shell? (I don't want my changes overwritten in the future.)

Thank you so much for your time.