fulfil customer requirements REQ 1011, test for REQ 1013, 1014

src/wce_crm/gui.py

@@ -862,13 +862,13 @@ def set_widget_value(
             raise ValueError(f"Could not parse date field value >{value}<")
         widget.setDate(set_date)
     elif isinstance(widget, FlexibleDateInput):
-        assert isinstance(value, datetime.datetime)
+        assert isinstance(value, (datetime.datetime, datetime.date)) or value is None
         try:
             widget.set_pydate(value, raise_error=True)
         except ValueError:
             raise ValueError(f"Could not parse date field value >{value}<")
     elif isinstance(widget, FlexibleDateTimeInput):
-        assert isinstance(value, datetime.datetime)
+        assert isinstance(value, datetime.datetime) or value is None
         try:
             widget.set_pydatetime(value, raise_error=True)
         except ValueError:
@@ -2005,9 +2005,13 @@ class FlexibleDateInput(QWidget):
 
     def set_pydate(
         self,
-        date: datetime.datetime,
+        date: datetime.datetime | datetime.date | None,
         raise_error: bool = False,
     ) -> None:
+        if date is None:
+            self.reset()
+            return
+
         date_to_set = QDate(date.year, date.month, date.day)
         if raise_error and not date_to_set.isValid():
             raise ValueError("Could not parse date object correctly")
@@ -2224,9 +2228,13 @@ class FlexibleDateTimeInput(QWidget):
 
     def set_pydatetime(
         self,
-        dt: datetime.datetime,
+        dt: datetime.datetime | None,
         raise_error: bool = False,
     ) -> None:
+        if dt is None:
+            self.reset()
+            return
+
         dt_to_set = QDateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0)
         if raise_error and not dt_to_set.isValid():
             raise ValueError("Could not parse datetime object correctly")
@@ -3277,7 +3285,7 @@ class Page_InitRec(QWidget):
         print(f">>>> {pformat(search_res)}")
         assert len(search_res) == 1
         field_wiedereintrittsdatum = search_res[0]["widget"]
-        assert isinstance(field_wiedereintrittsdatum, QDateEdit)
+        assert isinstance(field_wiedereintrittsdatum, FlexibleDateInput)
         self.field_wiedereintrittsdatum = field_wiedereintrittsdatum
 
         # ** person