Very true.  This is more general than t2, I just dislike adding so
many symbols to the global namespace, so this could be added to a
helpers.* object if it existed.

The reason for this proposal is that currently you cannot import
actions easily:

# in controllers/default.py
from modules.crud import create

The create action will not be found because actions are currently
found with a regex.

Robin



On Jan 8, 1:19 pm, "Yarko Tymciurak" <yark...@gmail.com> wrote:
> Let me double check to make sure:
>
> this behavior -  non-argumented controllers being exposed / accessible from
> a client - is not (only) t2; this is general web2py behavior,
>
> correct?
>
> On Thu, Jan 8, 2009 at 1:15 PM, Yarko Tymciurak <yark...@gmail.com> wrote:
> > yep - after reading that thread Robin pointed to at the head of this
> > thread,  the space behavior definitely looks like an expedient hack...
>
> > and reading the response from Massimo there:
> > "If you have
> > function that does not take *arguments* and you still don't want to
> > expose it you can also use a trick..."
>
> > I'm with Robin - forget the "tricks" and be explicit... but, as I
> > suspected, the usual intent is expose no-argument controllers, so the
> > exceptional case calls for a decorator, a better name than I originally
> > posted:
>
> > @not_exposed
> > def  myfunc():
> >   #blah, blah, ...
>
> > On Thu, Jan 8, 2009 at 10:55 AM, Robin B <robi...@gmail.com> wrote:
>
> >> Massimo,
>
> >> > Not sure I undestand. This goes in a module? not a model?
>
> >> The example shows that it can go in either or both.
>
> >> You could put it in a module and then import it into a controller to
> >> import actions into one specific controller.  You could put it in a
> >> model to add an action to all controllers.
>
> >> The first time a controller is requested, the controller is exec'ed,
> >> the resulting environment is searched for functions of no args that
> >> have the specific attr that was set by the decorator, these actions
> >> are merged with the actions found with the regex.  All the possible
> >> controller_action.pyc is compiled and stored like usual, now you can
> >> call actions that were created in the models or imported from a module
> >> (crud, resources, admin, stats etc).
>
> >> Robin
>
> >> On Jan 8, 7:20 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
> >> > Not sure I undestand. This goes in a module? not a model?
>
> >> > On Jan 8, 12:03 am, Robin B <robi...@gmail.com> wrote:
>
> >> > > Controller functions taking arguments, or functions with an extra
> >> > > space like def index (): are hidden:
>
> >> > >http://groups.google.com/group/web2py/browse_thread/thread/35c15761dc.
> >> ..
>
> >> > > This is good that you can hide functions somehow, but using only a
> >> > > regex to detect controller functions requires people to copy-paste
> >> > > common actions into every controller (bad).
>
> >> > > Could a controller be loaded, and its symbols that are functions
> >> > > checked for a tag (attribute) indicating that they are also exposed.
> >> > > This way you can import actions/functions in the models and in the
> >> > > individual controllers.
>
> >> > > Proposal: continue to use the regex for backwards compatibility, but
> >> > > also expose functions that are explicitly tagged as exposed by some
> >> > > decorator.
>
> >> > > Examples:
>
> >> > > # in models/0.py
> >> > > @T2.decorators.expose
> >> > > def stats():
> >> > >   return 'stats'
>
> >> > > # in modules/crud.py
> >> > > @T2.decorators.expose
> >> > > def update():
> >> > >   return 'update'
>
> >> > > # in controllers/posts.py
> >> > > from modules.crud import *
>
> >> > > It would be fully backwards compatible!
>
> >> > > Feedback?
>
> >> > > Robin
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