django.contrib.admin.utils.NestedObjects

class documentation

class NestedObjects(Collector):

Undocumented

Method	`__init__`	Undocumented
Method	`_nested`	Undocumented
Method	`add_edge`	Undocumented
Method	`can_fast_delete`	We always want to load the objects into memory so that we can display them to the user in confirm page.
Method	`collect`	No summary
Method	`nested`	Return the graph as a nested list.
Method	`related_objects`	Get a QuerySet of the related model to objs via related fields.
Instance Variable	`edges`	Undocumented
Instance Variable	`model_objs`	Undocumented
Instance Variable	`protected`	Undocumented

Inherited from Collector:

Method	`_has_signal_listeners`	Undocumented
Method	`add`	Add 'objs' to the collection of objects to be deleted. If the call is the result of a cascade, 'source' should be the model that caused it, and 'nullable' should be set to True if the relation can be null.
Method	`add_dependency`	Undocumented
Method	`add_field_update`	Schedule a field update. 'objs' must be a homogeneous iterable collection of model instances (e.g. a QuerySet).
Method	`add_restricted_objects`	Undocumented
Method	`clear_restricted_objects_from_queryset`	Undocumented
Method	`clear_restricted_objects_from_set`	Undocumented
Method	`delete`	Undocumented
Method	`get_del_batches`	Return the objs in suitably sized batches for the used connection.
Method	`instances_with_model`	Undocumented
Method	`sort`	Undocumented
Instance Variable	`data`	Undocumented
Instance Variable	`dependencies`	Undocumented
Instance Variable	`fast_deletes`	Undocumented
Instance Variable	`field_updates`	Undocumented
Instance Variable	`restricted_objects`	Undocumented
Instance Variable	`using`	Undocumented

def __init__(self, *args, **kwargs):

overrides django.db.models.deletion.Collector.__init__

Undocumented

def _nested(self, obj, seen, format_callback):

Undocumented

def add_edge(self, source, target):

Undocumented

def can_fast_delete(self, *args, **kwargs):

overrides django.db.models.deletion.Collector.can_fast_delete

We always want to load the objects into memory so that we can display them to the user in confirm page.

def collect(self, objs, source=None, source_attr=None, **kwargs):

overrides django.db.models.deletion.Collector.collect

Add 'objs' to the collection of objects to be deleted as well as all parent instances. 'objs' must be a homogeneous iterable collection of model instances (e.g. a QuerySet). If 'collect_related' is True, related objects will be handled by their respective on_delete handler.

If the call is the result of a cascade, 'source' should be the model that caused it and 'nullable' should be set to True, if the relation can be null.

If 'reverse_dependency' is True, 'source' will be deleted before the current model, rather than after. (Needed for cascading to parent models, the one case in which the cascade follows the forwards direction of an FK rather than the reverse direction.)

If 'keep_parents' is True, data of parent model's will be not deleted.

If 'fail_on_restricted' is False, error won't be raised even if it's prohibited to delete such objects due to RESTRICT, that defers restricted object checking in recursive calls where the top-level call may need to collect more objects to determine whether restricted ones can be deleted.

def nested(self, format_callback=None):

Return the graph as a nested list.

def related_objects(self, related_model, related_fields, objs):

overrides django.db.models.deletion.Collector.related_objects

Get a QuerySet of the related model to objs via related fields.

edges: dict =

Undocumented

model_objs =

Undocumented

protected: set =

Undocumented