Added docs for bulk views from django-rest-framework-bulk.

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Miroslav Shubernetskiy 2014-01-18 22:31:36 -05:00
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@ -362,6 +362,54 @@ If you are using a mixin across multiple views, you can take this a step further
Using custom base classes is a good option if you have custom behavior that consistently needs to be repeated across a large number of views throughout your project.
# Third party packages
The following third party packages provide additional generic view implementations.
## Django REST Framework bulk
The [django-rest-framework-bulk package][django-rest-framework-bulk] implements generic view mixins as well as some common concrete generic views to allow to apply bulk operations via API requests.
### Mixins
As with Django Rest Framework standard mixins, each mixin defines a specific behavior which allows to composite multiple mixins (either with other bulk mixins or standard mixins) for more functionality.
#### BulkCreateModelMixin
Provides a `.create(request, *args, **kwargs)` method, that implements creating either a single or multiple objects depending on the `request.DATA` data-type (list or object).
If any object(s) is/are created, as with the standard `CreateModelMixin`, `201 Created` response is returned with the serialization of created object(s). If any errors occur while validating the provided data, `400 Bad Request` is returned with error details for each attempted creation object.
#### BulkUpdateModelMixin
Provides a `.bulk_update(request, *args, **kwargs)` method, that implements updating multiple objects at the same time. Since each object needs to be identified, each object within `request.DATA` must provide its identity as per serializer's `.get_identity()`.
Also provides a `.partial_bulk_update(request, *args, **kwargs)` method, which is similar to the `bulk_update`, except that all fields for all resources will be optional.
If all objects are updated, `200 OK` response is returned with the serialized representation of all updated objects. If any validation errors occur, `400 Bad Request` is returned.
#### BulkDestroyModelMixin
Provides a `.bulk_destroy(request, *args, **kwargs)` method, that implements deletion of all objects within a queryset. Since that can potentially be very dangerous, this mixin also provides an `.allow_bulk_destroy(queryset, filtered)` hook to determine if the bulk delete should be allowed. By default it allows the request if the queryset was filtered.
If the objects are deleted this returns `204 No Content` response or `400 Bad Request` if the request is not allowed as per `allow_bulk_destroy`.
### Concrete View Classes
In addition to the bulk mixins, this package also implements some of the most common bulk concrete view classes. Those include:
* `BulkCreateAPIView`
* `BulkUpdateAPIView`
* `BulkDestroyAPIView`
* `ListBulkCreateAPIView`
* `ListCreateBulkUpdateAPIView`
* `ListCreateBulkUpdateDestroyAPIView`
* `ListBulkCreateUpdateAPIView`
* `ListBulkCreateUpdateDestroyAPIView`
To create custom concrete view classes, you can also composite the mixins manually as explained in **Creating custom base classes** of Django Rest Framework documentation.
[cite]: https://docs.djangoproject.com/en/dev/ref/class-based-views/#base-vs-generic-views
[GenericAPIView]: #genericapiview
@ -370,3 +418,4 @@ Using custom base classes is a good option if you have custom behavior that cons
[RetrieveModelMixin]: #retrievemodelmixin
[UpdateModelMixin]: #updatemodelmixin
[DestroyModelMixin]: #destroymodelmixin
[django-rest-framework-bulk]: https://github.com/miki725/django-rest-framework-bulk