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Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/contrib/contenttypes.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/docs/ref/contrib/contenttypes.txt b/docs/ref/contrib/contenttypes.txt index 66dbfe45ef..5db1017f73 100644 --- a/docs/ref/contrib/contenttypes.txt +++ b/docs/ref/contrib/contenttypes.txt @@ -391,6 +391,36 @@ be used to retrieve their associated ``TaggedItems``:: >>> b.tags.all() <QuerySet [<TaggedItem: django>, <TaggedItem: python>]> +You can also use ``add()``, ``create()``, or ``set()`` to create +relationships:: + + >>> t3 = TaggedItem(tag='Web development') + >>> b.tags.add(t3, bulk=False) + >>> b.tags.create(tag='Web framework') + <TaggedItem: Web framework> + >>> b.tags.all() + <QuerySet [<TaggedItem: django>, <TaggedItem: python>, <TaggedItem: Web development>, <TaggedItem: Web framework>]> + >>> b.tags.set([t1, t3]) + >>> b.tags.all() + <QuerySet [<TaggedItem: django>, <TaggedItem: Web development>]> + +The ``remove()`` call will bulk delete the specified model objects:: + + >>> b.tags.remove(t3) + >>> b.tags.all() + <QuerySet [<TaggedItem: django>]> + >>> TaggedItem.objects.all() + <QuerySet [<TaggedItem: django>]> + +The ``clear()`` method can be used to bulk delete all related objects for an +instance:: + + >>> b.tags.clear() + >>> b.tags.all() + <QuerySet []> + >>> TaggedItem.objects.all() + <QuerySet []> + Defining :class:`~django.contrib.contenttypes.fields.GenericRelation` with ``related_query_name`` set allows querying from the related object:: |