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Update browser enhancments docs. Fixes #339.

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Tom Christie 2012-10-30 10:30:41 +00:00
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docs/topics/browser-enhancements.md
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@ -2,11 +2,14 @@
> "There are two noncontroversial uses for overloaded POST. The first is to *simulate* HTTP's uniform interface for clients like web browsers that don't support PUT or DELETE" > "There are two noncontroversial uses for overloaded POST. The first is to *simulate* HTTP's uniform interface for clients like web browsers that don't support PUT or DELETE"
> >
> — [RESTful Web Services](1), Leonard Richardson & Sam Ruby. > — [RESTful Web Services][cite], Leonard Richardson & Sam Ruby.
## Browser based PUT, DELETE, etc... ## Browser based PUT, DELETE, etc...
**TODO: Preamble.** Note that this is the same strategy as is used in [Ruby on Rails](2). REST framework supports browser-based `PUT`, `DELETE` and other methods, by
overloading `POST` requests using a hidden form field.
Note that this is the same strategy as is used in [Ruby on Rails][rails].
For example, given the following form: For example, given the following form:
@ -18,7 +21,8 @@ For example, given the following form:
## Browser based submission of non-form content ## Browser based submission of non-form content
Browser-based submission of content types other than form are supported by using form fields named `_content` and `_content_type`: Browser-based submission of content types other than form are supported by
using form fields named `_content` and `_content_type`:
For example, given the following form: For example, given the following form:
@ -27,17 +31,34 @@ For example, given the following form:
<input name="_content" value="{'count': 1}"> <input name="_content" value="{'count': 1}">
</form> </form>
`request.content_type` would return `"application/json"`, and `request.stream` would return `"{'count': 1}"` `request.content_type` would return `"application/json"`, and
`request.stream` would return `"{'count': 1}"`
## URL based accept headers ## URL based accept headers
REST framework can take `?accept=application/json` style URL parameters,
which allow the `Accept` header to be overridden.
This can be useful for testing the API from a web browser, where you don't
have any control over what is sent in the `Accept` header.
## URL based format suffixes ## URL based format suffixes
REST framework can take `?format=json` style URL parameters, which can be a
useful shortcut for determing which content type should be returned from
the view.
This is a more concise than using the `accept` override, but it also gives
you less control. (For example you can't specify any media type parameters)
## Doesn't HTML5 support PUT and DELETE forms? ## Doesn't HTML5 support PUT and DELETE forms?
Nope. It was at one point intended to support `PUT` and `DELETE` forms, but was later [dropped from the spec](3). There remains [ongoing discussion](4) about adding support for `PUT` and `DELETE`, as well as how to support content types other than form-encoded data. Nope. It was at one point intended to support `PUT` and `DELETE` forms, but
was later [dropped from the spec][html5]. There remains
[ongoing discussion][put_delete] about adding support for `PUT` and `DELETE`,
as well as how to support content types other than form-encoded data.
[1]: http://www.amazon.com/Restful-Web-Services-Leonard-Richardson/dp/0596529260 [cite]: http://www.amazon.com/Restful-Web-Services-Leonard-Richardson/dp/0596529260
[2]: http://guides.rubyonrails.org/form_helpers.html#how-do-forms-with-put-or-delete-methods-work [rails]: http://guides.rubyonrails.org/form_helpers.html#how-do-forms-with-put-or-delete-methods-work
[3]: http://www.w3.org/TR/html5-diff/#changes-2010-06-24 [html5]: http://www.w3.org/TR/html5-diff/#changes-2010-06-24
[4]: http://amundsen.com/examples/put-delete-forms/ [put_delete]: http://amundsen.com/examples/put-delete-forms/