I don't think a decorator is the best solution.
For instance, many times the HTML version needs a more data and
processing than others (because it must render a header, sidebar,
etc.)
Something like this would be more flexible IMHO:
def GET(self, arg1, arg2, ...):
... code to retrieve the data ...
if json_requested():
return json(data)
elif txt_requested():
return txt(data)
... more processing ...
... normal html rendering ...
On 22 abr, 18:00, Martin <[email protected]> wrote:
> Hi all,
> I started using web.py for programming web services and, although I'm
> quite happy with the framework, I couldn't find an out-of-the-box
> solution for what I was looking for. More specifically, I wanted to
> select the appropriate representation for the service's resources in a
> RESTful way, i.e. using the HTTP Accept header.
> I didn't like this:
>
> render_html = web.template.render('templates/html')
> render_xml = web.template.render('templates/xml')
> render_json = lambda **args: json.dumps(args)
>
> class hello:
> def GET(self, name):
> if not name: name = 'world'
> message = 'Hello, %s!'%name
> accept_string = web.ctx.env['HTTP_ACCEPT']
> mime = find_best_supported_mime(accept_string)
> if mime=='application/html':
> return render_html.hello(message)
> elif mime=='application/xml':
> return render_xml.hello(message)
> elif mime=='application/json':
> return render_json(message)
> else:
> raise web.internalerror('no representation for "%s"'%mime)
>
> So I made it like this:
>
> @mimerender.represent(
> html = render_html.hello,
> xml = render_xml.hello,
> json = render_json)
> def GET(self, name):
> if not name: name = 'world'
> message = 'Hello, %s!'%name
> return {'message': message}
>
> I've made the library open-source and posted it
> athttp://code.google.com/p/mimerender
> Hope someone finds it useful, and I'll gladly receive all comments and
> criticisms.
> Best,
>
> Martín
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