If you @expose an engine which is not available in base_config.renderers
you will get that error.
def setup_protobuf_renderer(app_config):
app_config.render_functions. protobuf = render_pbuf
base_config.setup_protobuf_renderer = setup_protobuf_renderer
base_config.renderers.append('protobuf')
Should do the trick.
On Mon, Mar 3, 2014 at 5:11 PM, <[email protected]> wrote:
> I'm trying to set up a custom renderer (namely for rendering protobufs),
> but I can't figure out how to set it up. I've tried the various examples on
> how to do it, but I never get them to work. The error I get is:
>>
>> TemplateNotFound: Template "protobuf" not found
>
>
> I've written a render function, called render_pbuf, which I'm trying to
> set in the app_cfg.py file like so (only showing relevant parts of the
> file):
>
>> from coreapi.custom_extensions import render_pbuf
>> base_config.renderers.append('json')
>> base_config.default_renderer = 'genshi'
>> base_config.renderers.append('genshi')
>> base_config.render_functions['protobuf'] = render_pbuf
>
>
> Then, I'm decorating a method in my root controller like this:
>
> @expose('protobuf', content_type='application/x-protobuf')
>> def test(self):
>> return {
>> 'foo': 'bar',
>> 'ba': 'zinga'
>> }
>
>
> And a longer stack trace of the error:
>
> File '/.../python2.7/site-packages/tg/controllers/dispatcher.py', line 124
>> in _perform_call
>> r = self._call(func, params, remainder=remainder)
>> File
>> '/.../python2.7/site-packages/tg/controllers/decoratedcontroller.py', line
>> 145 in _call
>> response = self._render_response(controller, output)
>> File
>> '/.../python2.7/site-packages/tg/controllers/decoratedcontroller.py', line
>> 318 in _render_response
>> template_name=template_name, **render_params)
>> File '/.../python2.7/site-packages/tg/render.py', line 183 in render
>> kwargs['result'] = render_function(template_name, tg_vars, **kwargs)
>> File '/.../python2.7/site-packages/tg/render.py', line 404 in __call__
>> ns_options=('doctype', 'method'), **kwargs)
>> File '/.../python2.7/site-packages/tg/render.py', line 248 in
>> cached_template
>> return render_func()
>> File '/.../python2.7/site-packages/tg/render.py', line 399 in
>> render_template
>> template = self.load_template(template_name)
>> File '/.../python2.7/site-packages/tg/dottednames/genshi_lookup.py', line
>> 29 in load
>> relative_to=relative_to, cls=cls, encoding=encoding)
>> File 'build/bdist.macosx-10.7-x86_64/egg/genshi/template/loader.py', line
>> 246 in load
>> TemplateNotFound: Template "protobuf" not found
>
>
>
> Worth noting is that the code in the render_pbuf function never runs, I've
> added 10/0 as the first line just to make it crash if it does run, but it
> never does, so the problem lies elsewhere.
>
> Does anyone have any idea on what I'm doing wrong?
>
> Best regards,
> Atra Azami
>
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