Sean Davis wrote:
On 1/1/07, *Robert Ian Smit* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
wrote:
> REST gets a lot of press these days, it seems. However, I
haven't found
> many examples of how it works in practice. It seems that put and
delete
> methods need to be called via XMLHttpRequest (AJAX).
Pylons and some other frameworks can work with browser-unsupported HTTP
verbs by using a hidden input field. The formcontents are POSTed to the
server as usual, the framework will see the hidden field and translate
it to the proper call in the application, i.e.:
<input type="hidden" name="_method" value="DELETE" />
Also have a look at the Routes documentation[1] concerning REST.
To request a form representation of a resource (for preparing edits
that can be PUTted) map.resource from Routes (and others) suggests
adding ';edit' to the URL. For instance a request to /foo/1;edit should
result in a form.
Combined with a hidden "_method" input field it is possible to use
RESTful operations with classic POST and redirect interaction between
browser and server. No AJAX or any Javascript is required for this.
I'd like to add one question of my own. Should there be a "Are you sure
you want to delete?" representation added to map.resource? It's easy to
add a member but shouldn't the framework offer a convention?
[1] http://routes.groovie.org/manual.html#restful-services
Thank. This clarifies a lot for me. I have tried using the
map.resource() methods and the hidden field method for performing a
delete, for example. Under pylons, does the translation from the hidden
field to http method happen before dispatch via routes?
It might be nice to do this method fixup in middleware, similar to
PrefixMiddleware (or maybe expand that to a general FixupMiddleware --
I'd like to move that out of Paste Deploy and into Paste anyway).
--
Ian Bicking | [EMAIL PROTECTED] | http://blog.ianbicking.org
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