How to make DateTimeField default to PM

[Jim Pinkham <pi...@gmail.com>]

I wanted to have my DateTimeField (That's the wicket-extensions component
with a date text field, button to open calendar, and hours/minutes fields
with optional AM_PM choice) default to PM instead of AM for new dates
because I noticed most dates in this part of my app are evening dates.

I came up with this; maybe it helps someone, or let me know if you have a
better way:

FormComponent<Date> dateField = new DateTimeField("eventOn") {
                private static final long serialVersionUID = 1L;

                // amOrPmChoice is final, so we have a little kludge to
default new item's eventOn date to PM
                // TODO: find a less clever way
                @Override
                protected void onBeforeRender() {
                    Date d = (Date)getDefaultModelObject();
                    if (d == null) { // user hasn't entered a date (yet)
                        Calendar c = Calendar.getInstance();
                        c.set(Calendar.HOUR_OF_DAY, 18);  // anything after
noon would work
                        IModel<Date> dm = (IModel<Date>) getDefaultModel();
                        dm.setObject(c.getTime());
                        super.onBeforeRender();   // initializes
amOrPmChoice as side-effect
                        dm.setObject(null);
                    }
                    super.onBeforeRender();
                }

                @Override
                protected DateTextField newDateTextField(final String id,
                        final PropertyModel<Date> dateFieldModel) {
                    return DateTextField.forDatePattern(id, dateFieldModel,
                            "MM/dd/yyyy");
                }
            };
Cheers,
-- Jim.