Correction :-(. It doesn't really work. The Pylons request object
doesn't have a response_type attribute. This line in the controller
method raises AttributeError for 'response_type'

if pylons.request.response_type == 'application/json':
  ...


I'll leave it to the experts to figure it out. Please do.

Hjhj

Danke schein, Carl

On Mar 18, 11:12 am, Carl <[email protected]> wrote:
> I found a workaround, but it's not pretty. The solution is to override
> the _perform_call() method of DecoratedController in your controller:
>
>     def _perform_call(self, controller, params, remainder=None):
>         # If not a decorated method just call it (needed for
> __before__ and __after__)
>         if not hasattr(controller, 'decoration'):
>             if remainder is None:
>                 remainder = []
>
>             return controller(*remainder, **dict(params))
>         return DecoratedController._perform_call(self, controller,
> params, remainder)
>
> Carl
>
> On Mar 17, 1:59 am, Raphael Slinckx <[email protected]> wrote:
>
> > See also this post from me from a while 
> > ago:http://groups.google.com/group/turbogears/browse_thread/thread/ab9c8a...
>
> > No solution though..
>
> > On Mar 17, 2:00 am, Carl <[email protected]> wrote:
>
> > > Ok. This is on a new quickstarted project with my changes for custom
> > > routes. Here is the traceback and the changes to app_cfg.py and
> > > root.py are bellow. If it's helpful I can upload the entire project.
>
> > > URL:http://localhost:8080/prefix/1/about
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/WebError-0.10.1-
> > > py2.5.egg/weberror/evalexception.py', line 431 in respond
> > >   app_iter = self.application(environ, detect_start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/TurboGears2-2.0b7-
> > > py2.5.egg/tg/configuration.py', line 631 in wrapper
> > >   return app(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/TurboGears2-2.0b7-
> > > py2.5.egg/tg/configuration.py', line 534 in remover
> > >   return app(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/repoze.tm2-1.0a3-
> > > py2.5.egg/repoze/tm/__init__.py', line 19 in __call__
> > >   result = self.application(environ, save_status_and_headers)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/
> > > ToscaWidgets-0.9.5dev_20081026-py2.5.egg/tw/core/middleware.py', line
> > > 36 in __call__
> > >   return self.wsgi_app(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/
> > > ToscaWidgets-0.9.5dev_20081026-py2.5.egg/tw/core/middleware.py', line
> > > 59 in wsgi_app
> > >   resp = req.get_response(self.application)
> > > File 'build/bdist.macosx-10.3-i386/egg/webob/__init__.py', line 1325
> > > in get_response
> > > File 'build/bdist.macosx-10.3-i386/egg/webob/__init__.py', line 1293
> > > in call_application
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/
> > > ToscaWidgets-0.9.5dev_20081026-py2.5.egg/tw/core/
> > > resource_injector.py', line 67 in _injector
> > >   resp = req.get_response(app)
> > > File 'build/bdist.macosx-10.3-i386/egg/webob/__init__.py', line 1325
> > > in get_response
> > > File 'build/bdist.macosx-10.3-i386/egg/webob/__init__.py', line 1293
> > > in call_application
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Beaker-1.2.2-
> > > py2.5.egg/beaker/middleware.py', line 81 in __call__
> > >   return self.app(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Beaker-1.2.2-
> > > py2.5.egg/beaker/middleware.py', line 160 in __call__
> > >   return self.wrap_app(environ, session_start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Routes-1.10.3-
> > > py2.5.egg/routes/middleware.py', line 130 in __call__
> > >   response = self.app(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Pylons-0.9.7-
> > > py2.5.egg/pylons/wsgiapp.py', line 125 in __call__
> > >   response = self.dispatch(controller, environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Pylons-0.9.7-
> > > py2.5.egg/pylons/wsgiapp.py', line 324 in dispatch
> > >   return controller(environ, start_response)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Pylons-0.9.7-
> > > py2.5.egg/pylons/controllers/core.py', line 217 in __call__
> > >   response = self._inspect_call(self.__before__)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/Pylons-0.9.7-
> > > py2.5.egg/pylons/controllers/core.py', line 107 in _inspect_call
> > >   result = self._perform_call(func, args)
> > > File '/Users/carl/tg2env/lib/python2.5/site-packages/TurboGears2-2.0b7-
> > > py2.5.egg/tg/controllers.py', line 125 in _perform_call
> > >   controller.decoration.run_hooks('before_validate', remainder,
> > > AttributeError: 'function' object has no attribute 'decoration'
>
> > > Here is my app_cfg.py:
>
> > > # -*- coding: utf-8 -*-
> > > """
> > > Global configuration file for TG2-specific settings in custom-routes.
>
> > > This file complements development/deployment.ini.
>
> > > """
>
> > > from tg.configuration import AppConfig, Bunch
> > > # Carl: needed for setup_custom_routes
> > > from tg.configuration import Mapper, config
>
> > > import custom_routes
> > > from custom_routes import model
> > > from custom_routes.lib import app_globals, helpers
>
> > > # Carl: added custom routes function to override the default in
> > > AppConfig
> > > def custom_setup_routes(self):
> > >     """Setup the default TG2 routes
>
> > >     Override this and set up your own routes maps if you want to use
> > > routes.
> > >     """
> > >     map = Mapper(directory=config['pylons.paths']['controllers'],
> > >                 always_scan=config['debug'])
>
> > >     map.connect('prefix', 'prefix/{id}/{action}', controller='root')
>
> > >     # Setup a default route for the root of object dispatch
> > >     map.connect('*url', controller='root',
> > > action='routes_placeholder')
>
> > >     config['routes.map'] = map
>
> > > # Carl: assign the custom routes function to AppConfig.
> > > # It's equivalent to subclassing AppConfig in this case
> > > AppConfig.setup_routes = custom_setup_routes
>
> > > base_config = AppConfig()
> > > base_config.renderers = []
>
> > > base_config.package = custom_routes
>
> > > #Set the default renderer
> > > base_config.default_renderer = 'genshi'
> > > base_config.renderers.append('genshi')
> > > # if you want raw speed and have installed chameleon.genshi
> > > # you should try to use this renderer instead.
> > > # warning: for the moment chameleon does not handle i18n translations
> > > #base_config.renderers.append('chameleon_genshi')
>
> > > #Configure the base SQLALchemy Setup
> > > base_config.use_sqlalchemy = True
> > > base_config.model = custom_routes.model
>
> > > And here are my changes to the RootController:
>
> > > # -*- coding: utf-8 -*-
> > > """Main Controller"""
>
> > > from tg import expose, flash, require, url, request, redirect,
> > > validate
> > > from pylons.i18n import ugettext as _, lazy_ugettext as l_
>
> > > from custom_routes.lib.base import BaseController
> > > # Carl: DecoratedController will be the base class for the root
> > > controller
> > > from tg.controllers import DecoratedController
>
> > > from custom_routes.model import DBSession, metadata
> > > from custom_routes.controllers.error import ErrorController
>
> > > __all__ = ['RootController']
>
> > > class RootController(DecoratedController):
> > > #class RootController(BaseController):
> > > # The rest is the same
>
> > > On Mar 16, 1:09 pm, Mark Ramm <[email protected]> wrote:
>
> > > > A code sample, and traceback would help us help you better ;)
>
> > > > On Mon, Mar 16, 2009 at 2:43 PM, Carl <[email protected]> wrote:
>
> > > > > Hello Gustavo,
> > > > > What didn't work for me is that if my controller I just  subclasses
> > > > > the BaseController, then it looks like the routing in app_cfg.py is
> > > > > ignored. TGController  calls a _get_routing_info() function defined in
> > > > > ObjectDispatchController that does just object dispatch.
>
> > > > > Gigi
>
> > > > > On Mar 16, 9:46 am, Gustavo Narea <[email protected]> wrote:
> > > > >> Hello, Carl.
>
> > > > >> On Saturday March 14, 2009 16:49:17 Carl wrote:
>
> > > > >> > I tried it but it didn't work for me. Maybe I got the URL syntax
> > > > >> > wrong. What URLs map to your custom routes?
>
> > > > >> Those whose paths look like: /<string>/<integer>
>
> > > > >> > Also, from reading the
> > > > >> > Routes manual I got the impression that variables are words with a
> > > > >> > colon in the end (e.g 'prefix:'), but your routes look like regular
> > > > >> > expressions.
>
> > > > >> Placeholders can be defined with {brackets} and :colons:, but the 
> > > > >> later is
> > > > >> deprecated.
>
> > > > >> In my case I just wanted to force an integer in one of the 
> > > > >> variables, hence I
> > > > >> used a regular expression. It's optional.
>
> > > > >> Cheers!
>
> > > > >> PS: What didn't exactly work?
> > > > >> --
> > > > >> Gustavo Narea <xri://=Gustavo>.
> > > > >> | Tech blog: =Gustavo/(+blog)/tech  ~  About me: =Gustavo/about |
>
> > > > --
> > > > Mark Ramm-Christensen
> > > > email: mark at compoundthinking dot com
> > > > blog:www.compoundthinking.com/blog
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