Fixed #12997 -- Added markup for methods in the queryset docs. Thanks to Ramiro Morales for the patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13162 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
parent
5802ea3bbc
commit
55d65d3351
|
@ -138,6 +138,8 @@ executed.
|
||||||
``filter(**kwargs)``
|
``filter(**kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: filter(**kwargs)
|
||||||
|
|
||||||
Returns a new ``QuerySet`` containing objects that match the given lookup
|
Returns a new ``QuerySet`` containing objects that match the given lookup
|
||||||
parameters.
|
parameters.
|
||||||
|
|
||||||
|
@ -148,6 +150,8 @@ underlying SQL statement.
|
||||||
``exclude(**kwargs)``
|
``exclude(**kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: exclude(**kwargs)
|
||||||
|
|
||||||
Returns a new ``QuerySet`` containing objects that do *not* match the given
|
Returns a new ``QuerySet`` containing objects that do *not* match the given
|
||||||
lookup parameters.
|
lookup parameters.
|
||||||
|
|
||||||
|
@ -181,6 +185,8 @@ Note the second example is more restrictive.
|
||||||
``annotate(*args, **kwargs)``
|
``annotate(*args, **kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: annotate(*args, **kwargs)
|
||||||
|
|
||||||
.. versionadded:: 1.1
|
.. versionadded:: 1.1
|
||||||
|
|
||||||
Annotates each object in the ``QuerySet`` with the provided list of
|
Annotates each object in the ``QuerySet`` with the provided list of
|
||||||
|
@ -223,6 +229,8 @@ Aggregation <topics-db-aggregation>`.
|
||||||
``order_by(*fields)``
|
``order_by(*fields)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: order_by(*fields)
|
||||||
|
|
||||||
By default, results returned by a ``QuerySet`` are ordered by the ordering
|
By default, results returned by a ``QuerySet`` are ordered by the ordering
|
||||||
tuple given by the ``ordering`` option in the model's ``Meta``. You can
|
tuple given by the ``ordering`` option in the model's ``Meta``. You can
|
||||||
override this on a per-``QuerySet`` basis by using the ``order_by`` method.
|
override this on a per-``QuerySet`` basis by using the ``order_by`` method.
|
||||||
|
@ -297,6 +305,8 @@ You can tell if a query is ordered or not by checking the
|
||||||
``reverse()``
|
``reverse()``
|
||||||
~~~~~~~~~~~~~
|
~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: reverse()
|
||||||
|
|
||||||
.. versionadded:: 1.0
|
.. versionadded:: 1.0
|
||||||
|
|
||||||
Use the ``reverse()`` method to reverse the order in which a queryset's
|
Use the ``reverse()`` method to reverse the order in which a queryset's
|
||||||
|
@ -327,6 +337,8 @@ undefined afterward).
|
||||||
``distinct()``
|
``distinct()``
|
||||||
~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: distinct()
|
||||||
|
|
||||||
Returns a new ``QuerySet`` that uses ``SELECT DISTINCT`` in its SQL query. This
|
Returns a new ``QuerySet`` that uses ``SELECT DISTINCT`` in its SQL query. This
|
||||||
eliminates duplicate rows from the query results.
|
eliminates duplicate rows from the query results.
|
||||||
|
|
||||||
|
@ -361,6 +373,8 @@ query spans multiple tables, it's possible to get duplicate results when a
|
||||||
``values(*fields)``
|
``values(*fields)``
|
||||||
~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: values(*fields)
|
||||||
|
|
||||||
Returns a ``ValuesQuerySet`` -- a ``QuerySet`` that returns dictionaries when
|
Returns a ``ValuesQuerySet`` -- a ``QuerySet`` that returns dictionaries when
|
||||||
used as an iterable, rather than model-instance objects.
|
used as an iterable, rather than model-instance objects.
|
||||||
|
|
||||||
|
@ -449,6 +463,8 @@ individualism.
|
||||||
``values_list(*fields)``
|
``values_list(*fields)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: values_list(*fields)
|
||||||
|
|
||||||
.. versionadded:: 1.0
|
.. versionadded:: 1.0
|
||||||
|
|
||||||
This is similar to ``values()`` except that instead of returning dictionaries,
|
This is similar to ``values()`` except that instead of returning dictionaries,
|
||||||
|
@ -477,6 +493,8 @@ fields in the model, in the order they were declared.
|
||||||
``dates(field, kind, order='ASC')``
|
``dates(field, kind, order='ASC')``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: dates(field, kind, order='ASC')
|
||||||
|
|
||||||
Returns a ``DateQuerySet`` -- a ``QuerySet`` that evaluates to a list of
|
Returns a ``DateQuerySet`` -- a ``QuerySet`` that evaluates to a list of
|
||||||
``datetime.datetime`` objects representing all available dates of a particular
|
``datetime.datetime`` objects representing all available dates of a particular
|
||||||
kind within the contents of the ``QuerySet``.
|
kind within the contents of the ``QuerySet``.
|
||||||
|
@ -511,6 +529,8 @@ Examples::
|
||||||
``none()``
|
``none()``
|
||||||
~~~~~~~~~~
|
~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: none()
|
||||||
|
|
||||||
.. versionadded:: 1.0
|
.. versionadded:: 1.0
|
||||||
|
|
||||||
Returns an ``EmptyQuerySet`` -- a ``QuerySet`` that always evaluates to
|
Returns an ``EmptyQuerySet`` -- a ``QuerySet`` that always evaluates to
|
||||||
|
@ -524,7 +544,9 @@ Examples::
|
||||||
[]
|
[]
|
||||||
|
|
||||||
``all()``
|
``all()``
|
||||||
~~~~~~~~~~
|
~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: all()
|
||||||
|
|
||||||
.. versionadded:: 1.0
|
.. versionadded:: 1.0
|
||||||
|
|
||||||
|
@ -539,6 +561,8 @@ definitely have a ``QuerySet`` to work with.
|
||||||
``select_related()``
|
``select_related()``
|
||||||
~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: select_related()
|
||||||
|
|
||||||
Returns a ``QuerySet`` that will automatically "follow" foreign-key
|
Returns a ``QuerySet`` that will automatically "follow" foreign-key
|
||||||
relationships, selecting that additional related-object data when it executes
|
relationships, selecting that additional related-object data when it executes
|
||||||
its query. This is a performance booster which results in (sometimes much)
|
its query. This is a performance booster which results in (sometimes much)
|
||||||
|
@ -660,6 +684,8 @@ are performing a depth-based ``select_related``.
|
||||||
``extra(select=None, where=None, params=None, tables=None, order_by=None, select_params=None)``
|
``extra(select=None, where=None, params=None, tables=None, order_by=None, select_params=None)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: extra(select=None, where=None, params=None, tables=None, order_by=None, select_params=None)
|
||||||
|
|
||||||
Sometimes, the Django query syntax by itself can't easily express a complex
|
Sometimes, the Django query syntax by itself can't easily express a complex
|
||||||
``WHERE`` clause. For these edge cases, Django provides the ``extra()``
|
``WHERE`` clause. For these edge cases, Django provides the ``extra()``
|
||||||
``QuerySet`` modifier -- a hook for injecting specific clauses into the SQL
|
``QuerySet`` modifier -- a hook for injecting specific clauses into the SQL
|
||||||
|
@ -822,6 +848,8 @@ of the arguments is required, but you should use at least one of them.
|
||||||
``defer(*fields)``
|
``defer(*fields)``
|
||||||
~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: defer(*fields)
|
||||||
|
|
||||||
.. versionadded:: 1.1
|
.. versionadded:: 1.1
|
||||||
|
|
||||||
In some complex data-modeling situations, your models might contain a lot of
|
In some complex data-modeling situations, your models might contain a lot of
|
||||||
|
@ -878,7 +906,9 @@ eventually).
|
||||||
settled down and you understand where the hot-points are.
|
settled down and you understand where the hot-points are.
|
||||||
|
|
||||||
``only(*fields)``
|
``only(*fields)``
|
||||||
~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: only(*fields)
|
||||||
|
|
||||||
.. versionadded:: 1.1
|
.. versionadded:: 1.1
|
||||||
|
|
||||||
|
@ -914,7 +944,9 @@ logically::
|
||||||
Entry.objects.defer("body").only("headline", "body")
|
Entry.objects.defer("body").only("headline", "body")
|
||||||
|
|
||||||
``using(alias)``
|
``using(alias)``
|
||||||
~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: using(alias)
|
||||||
|
|
||||||
.. versionadded:: 1.2
|
.. versionadded:: 1.2
|
||||||
|
|
||||||
|
@ -946,6 +978,8 @@ they query the database each time they're called.
|
||||||
``get(**kwargs)``
|
``get(**kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: get(**kwargs)
|
||||||
|
|
||||||
Returns the object matching the given lookup parameters, which should be in
|
Returns the object matching the given lookup parameters, which should be in
|
||||||
the format described in `Field lookups`_.
|
the format described in `Field lookups`_.
|
||||||
|
|
||||||
|
@ -973,6 +1007,8 @@ The ``DoesNotExist`` exception inherits from
|
||||||
``create(**kwargs)``
|
``create(**kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: create(**kwargs)
|
||||||
|
|
||||||
A convenience method for creating an object and saving it all in one step. Thus::
|
A convenience method for creating an object and saving it all in one step. Thus::
|
||||||
|
|
||||||
p = Person.objects.create(first_name="Bruce", last_name="Springsteen")
|
p = Person.objects.create(first_name="Bruce", last_name="Springsteen")
|
||||||
|
@ -995,6 +1031,8 @@ exception if you are using manual primary keys.
|
||||||
``get_or_create(**kwargs)``
|
``get_or_create(**kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: get_or_create(**kwargs)
|
||||||
|
|
||||||
A convenience method for looking up an object with the given kwargs, creating
|
A convenience method for looking up an object with the given kwargs, creating
|
||||||
one if necessary.
|
one if necessary.
|
||||||
|
|
||||||
|
@ -1063,6 +1101,8 @@ has a side effect on your data. For more, see `Safe methods`_ in the HTTP spec.
|
||||||
``count()``
|
``count()``
|
||||||
~~~~~~~~~~~
|
~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: count()
|
||||||
|
|
||||||
Returns an integer representing the number of objects in the database matching
|
Returns an integer representing the number of objects in the database matching
|
||||||
the ``QuerySet``. ``count()`` never raises exceptions.
|
the ``QuerySet``. ``count()`` never raises exceptions.
|
||||||
|
|
||||||
|
@ -1087,6 +1127,8 @@ problems.
|
||||||
``in_bulk(id_list)``
|
``in_bulk(id_list)``
|
||||||
~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: in_bulk(id_list)
|
||||||
|
|
||||||
Takes a list of primary-key values and returns a dictionary mapping each
|
Takes a list of primary-key values and returns a dictionary mapping each
|
||||||
primary-key value to an instance of the object with the given ID.
|
primary-key value to an instance of the object with the given ID.
|
||||||
|
|
||||||
|
@ -1106,6 +1148,8 @@ If you pass ``in_bulk()`` an empty list, you'll get an empty dictionary.
|
||||||
``iterator()``
|
``iterator()``
|
||||||
~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: iterator()
|
||||||
|
|
||||||
Evaluates the ``QuerySet`` (by performing the query) and returns an
|
Evaluates the ``QuerySet`` (by performing the query) and returns an
|
||||||
`iterator`_ over the results. A ``QuerySet`` typically caches its
|
`iterator`_ over the results. A ``QuerySet`` typically caches its
|
||||||
results internally so that repeated evaluations do not result in
|
results internally so that repeated evaluations do not result in
|
||||||
|
@ -1122,6 +1166,8 @@ been evaluated will force it to evaluate again, repeating the query.
|
||||||
``latest(field_name=None)``
|
``latest(field_name=None)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: latest(field_name=None)
|
||||||
|
|
||||||
Returns the latest object in the table, by date, using the ``field_name``
|
Returns the latest object in the table, by date, using the ``field_name``
|
||||||
provided as the date field.
|
provided as the date field.
|
||||||
|
|
||||||
|
@ -1142,6 +1188,8 @@ Note ``latest()`` exists purely for convenience and readability.
|
||||||
``aggregate(*args, **kwargs)``
|
``aggregate(*args, **kwargs)``
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: aggregate(*args, **kwargs)
|
||||||
|
|
||||||
.. versionadded:: 1.1
|
.. versionadded:: 1.1
|
||||||
|
|
||||||
Returns a dictionary of aggregate values (averages, sums, etc) calculated
|
Returns a dictionary of aggregate values (averages, sums, etc) calculated
|
||||||
|
@ -1174,6 +1222,8 @@ Aggregation <topics-db-aggregation>`.
|
||||||
``exists()``
|
``exists()``
|
||||||
~~~~~~~~~~~~
|
~~~~~~~~~~~~
|
||||||
|
|
||||||
|
.. method:: exists()
|
||||||
|
|
||||||
.. versionadded:: 1.2
|
.. versionadded:: 1.2
|
||||||
|
|
||||||
Returns ``True`` if the :class:`QuerySet` contains any results, and ``False``
|
Returns ``True`` if the :class:`QuerySet` contains any results, and ``False``
|
||||||
|
|
Loading…
Reference in New Issue