feat: human readable duration

app/base/models/booking.py

@@ -72,6 +72,17 @@ class Booking(models.Model):
             return round(diff.total_seconds() / 60)
         return None
 
+    @property
+    def human_duration(self) -> 'str|None':
+        total = self.duration
+        if total is None:
+            return None
+        if total > 1440:
+            return f'> {total // 1440}T'
+        min = total % 60
+        hour = (total - min) // 60
+        return f'{hour}:{min:02d}'
+
     @property
     def calculated_price(self):
         traits = self.user.traits_at_date(self.begin_time).values_list('trait')

app/base/views/model_views/booking.py

@@ -21,7 +21,7 @@ class BookingOptions(ViewOptions[Booking], LoginRequired):
         'delete': 'booking:delete'
     }
     list_filter = {'user': 'user__pk'}
-    list_columns = ['begin_time', 'end_time', 'duration', 'user', 'type']
+    list_columns = ['begin_time', 'end_time', 'human_duration', 'user', 'type']
     list_render = {
         'begin_time': {
             'date_format': 'D. d.m.y, H:i',
@@ -31,7 +31,7 @@ class BookingOptions(ViewOptions[Booking], LoginRequired):
             'date_format': 'H:i',
             'width': '4rem',
         },
-        'duration': {
+        'human_duration': {
             'verbose_name': 'Dauer',
         },
     }

app/base/views/model_views/person.py

@@ -87,7 +87,7 @@ class PersonDetailView(PersonOptions, ModelDetailView):
                 'update': 'booking:update',
                 'delete': 'booking:delete'
             },
-            'columns': ['begin_time', 'end_time', 'duration', 'type'],
+            'columns': ['begin_time', 'end_time', 'human_duration', 'type'],
             'render': {
                 'begin_time': {
                     'date_format': 'D. d.m.y, H:i',
@@ -97,7 +97,7 @@ class PersonDetailView(PersonOptions, ModelDetailView):
                     'date_format': 'H:i',
                     'width': '4rem',
                 },
-                'duration': {
+                'human_duration': {
                     'verbose_name': 'Dauer',
                 },
             }