def delete(self, hard=False, using=None, *args, **kwargs):
# removed from the database or move to trash
if self.version_in_trash or hard:
# without sending signals post_delete, pre_delete
self._delete(using=None, *args, **kwargs)
elif hard:
# with sending signals
signal_allow(self, models.signals.pre_delete)
signal_allow(self, models.signals.post_delete)
self._delete(using=None, *args, **kwargs)
signal_allow(self, models.signals.pre_delete, count=0)
signal_allow(self, models.signals.post_delete, count=0)
else:
# with sending "virtual" signals
using = using or router.db_for_write(self.__class__, instance=self)
assert self._get_pk_val() is not None, \
"%s object can't be deleted because its %s attribute is set to None." % \
(self._meta.object_name, self._meta.pk.attname)
collector = Collector(using=using)
collector.collect([self])
# send pre_delete signals
for model, obj in collector.instances_with_model():
if not model._meta.auto_created:
models.signals.pre_delete.send(sender=model,
instance=obj,
using=using)
self.version_in_trash = True
self.version_date = _get_current_date()
self._save()
# send post_delete signals
for model, obj in collector.instances_with_model():
if not model._meta.auto_created:
models.signals.post_delete.send(sender=model,
instance=obj,
using=using)
def delete(self, hard=False, using=None, *args, **kwargs):
# removed from the database or move to trash
if self.version_in_trash or hard:
# without sending signals post_delete, pre_delete
self._delete(using=None, *args, **kwargs)
elif hard:
# with sending signals
signal_allow(self, models.signals.pre_delete)
signal_allow(self, models.signals.post_delete)
self._delete(using=None, *args, **kwargs)
signal_allow(self, models.signals.pre_delete, count=0)
signal_allow(self, models.signals.post_delete, count=0)
else:
# with sending "virtual" signals
using = using or router.db_for_write(self.__class__, instance=self)
assert self._get_pk_val() is not None, \
"%s object can't be deleted because its %s attribute is set to None." % \
(self._meta.object_name, self._meta.pk.attname)
collector = Collector(using=using)
collector.collect([self])
# send pre_delete signals
for model, obj in collector.instances_with_model():
if not model._meta.auto_created:
models.signals.pre_delete.send(
sender=model, instance=obj, using=using
)
self.version_in_trash = True
self.version_date = _get_current_date()
self._save()
# send post_delete signals
for model, obj in collector.instances_with_model():
if not model._meta.auto_created:
models.signals.post_delete.send(
sender=model, instance=obj, using=using
)
def save(self, force_insert=False, force_update=False, using=None):
# If no changes, then we drop writing.
if self.version_parent_rev_pk:
if self.get_version_hash() == self.version_parent_rev_pk.\
version_hash:
return
# Permission to send a signal.
signal_allow(self, models.signals.pre_save)
signal_allow(self, models.signals.post_save)
self._save(force_insert, force_update, using)
# Withdrawal of permission to send a signal.
signal_allow(self, models.signals.pre_save, count=0)
signal_allow(self, models.signals.post_save, count=0)
new_revision = self.create_revision()
new_revision.commit()
new_revision.set_as_main_version()
def save(self, force_insert=False, force_update=False, using=None):
# If no changes, then we drop writing.
if self.version_parent_rev_pk:
if self.get_version_hash() == self.version_parent_rev_pk.\
version_hash:
return
# Permission to send a signal.
signal_allow(self, models.signals.pre_save)
signal_allow(self, models.signals.post_save)
self._save(force_insert, force_update, using)
# Withdrawal of permission to send a signal.
signal_allow(self, models.signals.pre_save, count=0)
signal_allow(self, models.signals.post_save, count=0)
new_revision = self.create_revision()
new_revision.commit()
new_revision.set_as_main_version()