Bankimport: Force re-annotation for badly parsed files

src/pretix/plugins/banktransfer/csvimport.py

@@ -13,6 +13,7 @@ def parse(data, hint):
         raise HintMismatchError('Invalid hint')
     if len(data[0]) != hint['cols']:
         raise HintMismatchError('Wrong column count')
+    good_hint = False
     for row in data:
         resrow = {}
         if None in row or len(row) != hint['cols']:
@@ -31,8 +32,10 @@ def parse(data, hint):
                 or len(resrow['reference']) == 0 or resrow['date'] == '':
             # This is probably a headline or something other special.
             continue
+        if resrow['reference'] or resrow['payer']:
+            good_hint = True
         result.append(resrow)
-    return result
+    return result, good_hint
 
 
 def get_rows_from_file(file):

src/pretix/plugins/banktransfer/views.py

@@ -275,12 +275,14 @@ class ImportView(EventPermissionRequiredMixin, ListView):
 
         if self.request.event.settings.get('banktransfer_csvhint') is not None:
             hint = self.request.event.settings.get('banktransfer_csvhint', as_type=dict)
+
             try:
-                parsed = csvimport.parse(data, hint)
+                parsed, good = csvimport.parse(data, hint)
             except csvimport.HintMismatchError:  # TODO: narrow down
                 logger.exception('Import using stored hint failed')
             else:
-                return self.start_processing(parsed)
+                if good:
+                    return self.start_processing(parsed)
 
         return self.assign_view(data)
 
@@ -308,7 +310,7 @@ class ImportView(EventPermissionRequiredMixin, ListView):
             logger.error('Import using stored hint failed: ' + str(e))
             pass
         else:
-            parsed = csvimport.parse(data, hint)
+            parsed, __ = csvimport.parse(data, hint)
             return self.start_processing(parsed)
 
     def process_csv(self):