Overview export: Allow to skip empty lines (Z#23219200)

src/pretix/base/services/stats.py

@@ -112,7 +112,8 @@ def dictsum(*dicts) -> dict:
 
 def order_overview(
         event: Event, subevent: SubEvent=None, date_filter='', date_from=None, date_until=None, fees=False,
-        admission_only=False, base_qs=None, base_fees_qs=None, subevent_date_from=None, subevent_date_until=None
+        admission_only=False, base_qs=None, base_fees_qs=None, subevent_date_from=None, subevent_date_until=None,
+        skip_empty_lines=False,
 ) -> Tuple[List[Tuple[ItemCategory, List[Item]]], Dict[str, Tuple[Decimal, Decimal]]]:
     items = event.items.all().select_related(
         'category',  # for re-grouping
@@ -205,13 +206,21 @@ def order_overview(
                 for l in states.keys():
                     var.num[l] = num[l].get((item.id, variid), (0, 0, 0))
                 var.num['total'] = num['total'].get((item.id, variid), (0, 0, 0))
+                var._skip = all(v[0] == 0 for v in var.num.values())
             for l in states.keys():
                 item.num[l] = tuplesum(var.num[l] for var in item.all_variations)
             item.num['total'] = tuplesum(var.num['total'] for var in item.all_variations)
+            if skip_empty_lines:
+                item.all_variations = [v for v in item.all_variations if not v._skip]
+                item._skip = not item.all_variations
         else:
             for l in states.keys():
                 item.num[l] = num[l].get((item.id, None), (0, 0, 0))
             item.num['total'] = num['total'].get((item.id, None), (0, 0, 0))
+            item._skip = all(v[0] == 0 for v in item.num.values())
+
+    if skip_empty_lines:
+        items = [i for i in items if not i._skip]
 
     nonecat = ItemCategory(name=_('Uncategorized'))
     # Regroup those by category

src/pretix/plugins/reports/exporters.py

@@ -337,7 +337,8 @@ class OverviewReport(Report):
             date_until=d_end,
             subevent_date_from=sd_start,
             subevent_date_until=sd_end,
-            fees=True
+            fees=True,
+            skip_empty_lines=form_data.get("skip_empty_lines")
         )
 
     def _table_story(self, doc, form_data, net=False):
@@ -478,6 +479,10 @@ class OverviewReport(Report):
                 'Use the "Accounting report" in the export section instead.'
             ))
         )
+        f.fields['skip_empty_lines'] = forms.BooleanField(
+            label=_("Skip empty lines"),
+            required=False,
+        )
         return f.fields