On 1/1/07, Robert Ian Smit <[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 seems like it isn't happening, as
when I have html that looks like this:
<td><form method="post" action="/talks/1"
class="button-to"><div><input onclick="return confirm('Are you
sure?');" type="submit" value="Destroy" /></div></form></td>
And a map.resource('talk','talks') with a talks.py controller and a
delete(self,id) method, I get an error and the method on the debug page says
"POST". Any thoughts?
Thanks again,
Sean
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