Week in datePicker starts from Tuesday

dva · March 29, 2024, 3:11pm

We are developing a localized application using JMIX framework 2.1.2 and Studio version 2.2.0.

In our application, we used the datePicker component, Russian Locale and date format: dd.MM.yyyy.
It’s not clear why the week in datePicker starts from Tuesday:

Please advise how should we display in datePicker the beginning of the week from Monday.
Thanks in advance.

yarik1706 · March 31, 2024, 1:14am

As I can see, this problem is fixed in jmix version 2.2.0

github.com/jmix-framework/jmix

Wrong firstDayOfWeek displayed in DatePicker

opened 09:22AM - 26 Jan 24 UTC

closed 07:28AM - 01 Mar 24 UTC

alferink

type: bug

### Environment Jmix version: 2.1.999-SNAPSHOT (Last version 2.1.2) ### Bu…g Description The DatePicker-Component shows the wrong first day of week. In English Sunday should be shown, but Jmix shows Monday. In German (Locale de-DE) Tuesday is used instead of Monday. ### Steps To Reproduce - Select German Locale (de-DE) - Open Screen with DatePicker - Open Date Popup -> First day of week is Tuesday (Di.) ![image](https://github.com/jmix-framework/jmix/assets/7936798/19d52d06-4f63-4a28-8db9-895357c04208) ### Proposed solution Vaadin (https://javadoc.io/doc/com.vaadin/vaadin-platform-javadoc/14.4.3/com/vaadin/flow/component/datepicker/DatePicker.DatePickerI18n.html#setFirstDayOfWeek-int-) uses a different integer for day of week than java.util.Calendar (https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html#SUNDAY) It is necessary to map the values.