diff options
| author | Pavel Savchenko <asfaltboy@gmail.com> | 2019-01-21 16:13:42 +0100 |
|---|---|---|
| committer | Tim Graham <timograham@gmail.com> | 2019-01-21 10:13:42 -0500 |
| commit | 130192b12b63357a8f5ff448cd0edfa5a8094909 (patch) | |
| tree | 7704da3ff1882d5795707156340062712ebbff4d /docs/ref | |
| parent | d15c61cabbe1c15068ffeb58c64035057f0c7d5c (diff) | |
Corrected GenericRelation's related_query_name manual lookup example.
And changed related_query_name to a singular noun.
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/contrib/contenttypes.txt | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/docs/ref/contrib/contenttypes.txt b/docs/ref/contrib/contenttypes.txt index 8e6c7cab82..70eefe5117 100644 --- a/docs/ref/contrib/contenttypes.txt +++ b/docs/ref/contrib/contenttypes.txt @@ -394,21 +394,21 @@ be used to retrieve their associated ``TaggedItems``:: Defining :class:`~django.contrib.contenttypes.fields.GenericRelation` with ``related_query_name`` set allows querying from the related object:: - tags = GenericRelation(TaggedItem, related_query_name='bookmarks') + tags = GenericRelation(TaggedItem, related_query_name='bookmark') This enables filtering, ordering, and other query operations on ``Bookmark`` from ``TaggedItem``:: >>> # Get all tags belonging to bookmarks containing `django` in the url - >>> TaggedItem.objects.filter(bookmarks__url__contains='django') + >>> TaggedItem.objects.filter(bookmark__url__contains='django') <QuerySet [<TaggedItem: django>, <TaggedItem: python>]> -Of course, if you don't add the reverse relationship, you can do the +Of course, if you don't add the ``related_query_name``, you can do the same types of lookups manually:: - >>> b = Bookmark.objects.get(url='https://www.djangoproject.com/') - >>> bookmark_type = ContentType.objects.get_for_model(b) - >>> TaggedItem.objects.filter(content_type__pk=bookmark_type.id, object_id=b.id) + >>> bookmarks = Bookmark.objects.filter(url__contains='django') + >>> bookmark_type = ContentType.objects.get_for_model(Bookmark) + >>> TaggedItem.objects.filter(content_type__pk=bookmark_type.id, object_id__in=bookmarks) <QuerySet [<TaggedItem: django>, <TaggedItem: python>]> Just as :class:`~django.contrib.contenttypes.fields.GenericForeignKey` |
