2025-summer/team-3
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dont restore objects that have missing dependencies

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This commit is contained in:
Laura Klünder 2017-07-07 16:02:42 +02:00
parent 4aed7098dc
commit b2158bb781
3 changed files with 46 additions and 5 deletions
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38
src/c3nav/editor/models/changedobject.py
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@ -253,6 +253,40 @@ class ChangedObject(models.Model):
return False
return True
def can_restore(self, force_query=False):
if not self.deleted:
return False
for field in self.model_class._meta.get_fields():
if not field.many_to_one:
continue
if field.name not in self.updated_fields:
continue
related_model = field.related_model
if related_model._meta.app_label != 'mapdata':
continue
pk = self.updated_fields[field.name]
if force_query:
# query here to avoid a race condition
related_content_type = ContentType.objects.get_for_model(related_model)
qs = self.changeset.changed_objects_set.filter(content_type=related_content_type)
if is_created_pk(pk):
if not qs.filter(pk=int(pk[2:]), deleted=False).exists():
return False
else:
if qs.filter(existing_object_pk=pk, deleted=True).exists():
return False
else:
if is_created_pk(pk):
if pk not in self.changeset.created_objects.get(related_model, ()):
return False
else:
if pk in self.changeset.deleted_existing.get(related_model, ()):
return False
return True
def mark_deleted(self):
if not self.can_delete():
return False
@ -310,6 +344,10 @@ class ChangedObject(models.Model):
self._m2m_added_cache.setdefault(name, set()).difference_update(pks)
self.m2m_set(name)
def restore(self):
self.deleted = False
self.save(standalone=True)
@property
def does_something(self):
return (self.updated_fields or self._m2m_added_cache or self._m2m_removed_cache or self.is_created or