Hi I’m trying to write a grid filter. My aim is that user has a combo box and can choose that he wants to see only entries from 3, 6, 9 weeks ago. I wrote it but I have a problem becasue it doesnt work as default filter. I mean if I open a page the grid is displayed without filter. I need first click on the button. Is it possible to filter grid by default, showing only 3 weeks entries?
How can I manage it?
My code:
final ComboBox<Integer> timePeriodSelector = new ComboBox<>("Time Filter", Arrays.asList(3, 6, 9);
timePeriodSelector.setEmptySelectionAllowed(false);
timePeriodSelector.setTextInputAllowed(false);
timePeriodSelector.setValue(3);
timePeriodSelector.addValueChangeListener(this::onWeekChange);
...
private void onWeekChange(HasValue.ValueChangeEvent<Integer> event) {
switch (event.getValue()) {
case 3:
dateToCompare = LocalDate.now().minusDays(21);
break;
case 6:
dateToCompare = LocalDate.now().minusDays(42);
break;
case 9:
dateToCompare = LocalDate.now().minusDays(63);
break;
default:
dateToCompare = LocalDate.now().plusDays(21);
}
ListDataProvider<CcEvent> dataProvider = (ListDataProvider<CcEvent>) eventsOverview.getDataProvider();
dataProvider.setFilter(CcEvent::getReportingDate,
date -> compareDates(date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate(), dateToCompare));
}
private Boolean compareDates(LocalDate dateFromTable, LocalDate dateFromFilter) {
return dateFromTable.isBefore(dateFromFilter);
}