Binding Composite Date Fields

[leroy]

I have a form with 3 select boxes (day, month & year). I need to bind these fields to a single Date field in my command object. What is the best practice for doing this?

[katentim]

You can make your own date form object with each field (day, month & year) as a nested property. This allows you to valid the fields individually or as a group.

Another option would be to combine them into a single string in Javascript, and submit that.

[Colin Yates]

Or make use of the deprecated methods (shock horror ) of the existing java.util.Date (get/SetDay|Month|Year).

[orusso]

i have this broblem and, if possible, i would like to see, please, some example of solution... i have the following:

<Spring:bind path="fxRate.rpDate">
 <input type="text" name="rpDate" size="10" value="${status.value}" />
</Spring:bind>

the date is shown, like yyyy-mm-dd... without any problem, but when this field is modificated, the onSubmid method is not called because, i think, of some validation of spring, that cannot "translate" this new yyyy-mm-dd in Date again... can u plz help me with that?
thks a lot

[Colin Yates]

Have you registered a property editor against your date field?

[katentim]

if possible, i would like to see, please, some example of solution

From AbstractClinicForm in the PetClinic example:

    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        dateFormat.setLenient(false);
        binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, false));
        binder.registerCustomEditor(String.class, new StringTrimmerEditor(false));
    }

[orusso]

thks for replies!!

Have you registered a property editor against your date field?

yes :o

From AbstractClinicForm in the PetClinic example:

   
protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        dateFormat.setLenient(false);
        binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, false));
        binder.registerCustomEditor(String.class, new StringTrimmerEditor(false));
}

not working :_-(

public void initBinder(HttpServletRequest req,ServletRequestDataBinder binder) throws Exception{
 SimpleDateFormat specFormat = new SimpleDateFormat("yyyy-MM-dd");
 CustomDateEditor specEditor = new CustomDateEditor(specFormat, true);
 binder.registerCustomEditor(Date.class, "rpDate", specEditor);
}

this one too..

may be is there a problem with java.sql.Date class? do i need to use java.util.Date ??
when i just do not show this field (it is pre-setted earlier in formBackingObject() method), all works perfecly! (but SOMETIMES this pre-setted date needs to be modified)
plz help :o my chef is starting to look eagly at me about this problem... thks again!

[katentim]

do i need to use java.util.Date ?

Yes. CustomDateEditor is a property editor for java.util.Date.

[orusso]

Yes. CustomDateEditor is a property editor for java.util.Date.

but all java.sql.Date is java.util.Date... why it was not working? ( now it is :-D, i have modified the field extencion in POJO )
but now on ViewAll page, the date appear like "2006-06-28 00:00:00.0" .... with java.sql.Date it was "2006-06-28", a little bit more user-view-friendly... there is no initBinder() for the normal Controller interface (my viewAll-controller implements Controller)... do u plz have any suggestion for me? thks

[tim273]

You can make your own date form object with each field (day, month & year) as a nested property. This allows you to valid the fields individually or as a group.

I have the same issue, 3 fields: month, day, year and wanting to combine them into one date. I like the above solution, but I don't know if it really solves the original problem of how to bind 3 fields into one java.util.Date object. Any suggestions?

Thanks,
Tim