diff options
Diffstat (limited to 'archaeological_finds/models_finds.py')
| -rw-r--r-- | archaeological_finds/models_finds.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/archaeological_finds/models_finds.py b/archaeological_finds/models_finds.py index a3aaae50d..9baced4e0 100644 --- a/archaeological_finds/models_finds.py +++ b/archaeological_finds/models_finds.py @@ -1376,12 +1376,20 @@ class Find(BulkUpdatedItem, ValueGetter, BaseHistorizedItem, OwnPerms, for field in m2m: if field == 'datings' and copy_datings: for dating in self.datings.all(): + is_present = False + for current_dating in new.datings.all(): + if Dating.is_identical(current_dating, dating): + is_present = True + break + if is_present: + continue dating.pk = None dating.save() new.datings.add(dating) else: for val in getattr(self, field).all(): - getattr(new, field).add(val) + if val not in getattr(new, field).all(): + getattr(new, field).add(val) return new @classmethod |