categories.base.CategoryManager

CategoryManager

class categories.base.CategoryManager(*args, **kwargs)

A manager that adds an “active()” method for all active categories.

Methods

active()	Only categories that are active.
aggregate(*args, **kwargs)	Return a dictionary containing the calculations (aggregation) over the current queryset.
alias(*args, **kwargs)	Return a query set with added aliases for extra data or aggregations.
all()
annotate(*args, **kwargs)	Return a query set in which the returned objects have been annotated with extra data or aggregations.
bulk_create(*args, **kwargs)	Insert each of the instances into the database.
bulk_update(*args, **kwargs)	Update the given fields in each of the given objects in the database.
check(**kwargs)
complex_filter(*args, **kwargs)	Return a new QuerySet instance with filter_obj added to the filters.
contribute_to_class(cls, name)
count(*args, **kwargs)	Perform a SELECT COUNT() and return the number of records as an integer.
create(*args, **kwargs)	Create a new object with the given kwargs, saving it to the database and returning the created object.
dates(*args, **kwargs)	Return a list of date objects representing all available dates for the given field_name, scoped to 'kind'.
datetimes(*args, **kwargs)	Return a list of datetime objects representing all available datetimes for the given field_name, scoped to 'kind'.
db_manager([using, hints])
deconstruct()	Return a 5-tuple of the form (as_manager (True), manager_class, queryset_class, args, kwargs).
defer(*args, **kwargs)	Defer the loading of data for certain fields until they are accessed.
difference(*args, **kwargs)
distinct(*args, **kwargs)	Return a new QuerySet instance that will select only distinct results.
earliest(*args, **kwargs)
exclude(*args, **kwargs)	Return a new QuerySet instance with NOT (args) ANDed to the existing set.
exists(*args, **kwargs)
explain(*args, **kwargs)
extra(*args, **kwargs)	Add extra SQL fragments to the query.
filter(*args, **kwargs)	Return a new QuerySet instance with the args ANDed to the existing set.
first(*args, **kwargs)	Return the first object of a query or None if no match is found.
from_queryset(queryset_class[, class_name])
get(*args, **kwargs)	Perform the query and return a single object matching the given keyword arguments.
get_or_create(*args, **kwargs)	Look up an object with the given kwargs, creating one if necessary.
get_queryset()	Return a new QuerySet object.
in_bulk(*args, **kwargs)	Return a dictionary mapping each of the given IDs to the object with that ID.
intersection(*args, **kwargs)
iterator(*args, **kwargs)	An iterator over the results from applying this QuerySet to the database.
last(*args, **kwargs)	Return the last object of a query or None if no match is found.
latest(*args, **kwargs)
none(*args, **kwargs)	Return an empty QuerySet.
only(*args, **kwargs)	Essentially, the opposite of defer().
order_by(*args, **kwargs)	Return a new QuerySet instance with the ordering changed.
prefetch_related(*args, **kwargs)	Return a new QuerySet instance that will prefetch the specified Many-To-One and Many-To-Many related objects when the QuerySet is evaluated.
raw(*args, **kwargs)
reverse(*args, **kwargs)	Reverse the ordering of the QuerySet.
select_for_update(*args, **kwargs)	Return a new QuerySet instance that will select objects with a FOR UPDATE lock.
select_related(*args, **kwargs)	Return a new QuerySet instance that will select related objects.
union(*args, **kwargs)
update(*args, **kwargs)	Update all elements in the current QuerySet, setting all the given fields to the appropriate values.
update_or_create(*args, **kwargs)	Look up an object with the given kwargs, updating one with defaults if it exists, otherwise create a new one.
using(*args, **kwargs)	Select which database this QuerySet should execute against.
values(*args, **kwargs)
values_list(*args, **kwargs)

Attributes

auto_created
creation_counter
db
use_in_migrations	If set to True the manager will be serialized into migrations and will