diff options
Diffstat (limited to 'docs/howto/requestmixin.rst')
| -rw-r--r-- | docs/howto/requestmixin.rst | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/docs/howto/requestmixin.rst b/docs/howto/requestmixin.rst new file mode 100644 index 00000000..c0aadb3f --- /dev/null +++ b/docs/howto/requestmixin.rst @@ -0,0 +1,75 @@ +Using the enhanced request in all your views +============================================== + +This example shows how you can use Django REST framework's enhanced `request` - :class:`request.Request` - in your own views, without having to use the full-blown :class:`views.View` class. + +What can it do for you ? Mostly, it will take care of parsing the request's content, and handling equally all HTTP methods ... + +Before +-------- + +In order to support `JSON` or other serial formats, you might have parsed manually the request's content with something like : :: + + class MyView(View): + + def put(self, request, *args, **kwargs): + content_type = request.META['CONTENT_TYPE'] + if (content_type == 'application/json'): + raw_data = request.read() + parsed_data = json.loads(raw_data) + + # PLUS as many `elif` as formats you wish to support ... + + # then do stuff with your data : + self.do_stuff(parsed_data['bla'], parsed_data['hoho']) + + # and finally respond something + +... and you were unhappy because this looks hackish. + +Also, you might have tried uploading files with a PUT request - *and given up* since that's complicated to achieve even with Django 1.3. + + +After +------ + +All the dirty `Content-type` checking and content reading and parsing is done for you, and you only need to do the following : :: + + class MyView(MyBaseViewUsingEnhancedRequest): + + def put(self, request, *args, **kwargs): + self.do_stuff(request.DATA['bla'], request.DATA['hoho']) + # and finally respond something + +So the parsed content is magically available as `.DATA` on the `request` object. + +Also, if you uploaded files, they are available as `.FILES`, like with a normal POST request. + +.. note:: Note that all the above is also valid for a POST request. + + +How to add it to your custom views ? +-------------------------------------- + +Now that you're convinced you need to use the enhanced request object, here is how you can add it to all your custom views : :: + + from django.views.generic.base import View + + from djangorestframework.mixins import RequestMixin + from djangorestframework import parsers + + + class MyBaseViewUsingEnhancedRequest(RequestMixin, View): + """ + Base view enabling the usage of enhanced requests with user defined views. + """ + + parser_classes = parsers.DEFAULT_PARSERS + + def dispatch(self, request, *args, **kwargs): + request = self.prepare_request(request) + return super(MyBaseViewUsingEnhancedRequest, self).dispatch(request, *args, **kwargs) + +And then, use this class as a base for all your custom views. + +.. note:: you can see this live in the examples. |
