yes. even better use router (vs routes)

On Jul 6, 10:03 am, Miguel Lopes <mig.e.lo...@gmail.com> wrote:
> Humm,
>
> Nice. Yes, closures are enough, and cleaner too.
> Is routes OK for production mode?
> Txs,
> Miguel
>
> On Wed, Jul 6, 2011 at 3:54 PM, Massimo Di Pierro <
>
>
>
>
>
>
>
> massimo.dipie...@gmail.com> wrote:
> > Jonathan is right. Here is a simple way around.
>
> > Create a single controller called dynamical. use request.args(0) to
> > parse the name of one of the dynamical actions and remap
>
> > def dynamical():
> >     actionname, request.args[:] = request.args(0), request.args[1:]
> >     # call actionname and pass request.args and request.vars
>
> > use routes to remove the 'dynamical/' part form the URL.
>
> > This allows you to do what you want without necessarily meta-
> > programming.
>
> > On Jul 6, 9:35 am, Miguel Lopes <mig.e.lo...@gmail.com> wrote:
> > > Thanks. In conjunction with routes could supply a solution (shortening
> > the
> > > urls).
> > > I think I should rethink the payoff (see my reply to Massimo regarding my
> > > goals).
> > > Thanks,
> > > Miguel
>
> > > On Wed, Jul 6, 2011 at 3:12 PM, Jonathan Lundell <jlund...@pobox.com>
> > wrote:
> > > > On Jul 6, 2011, at 1:23 AM, Miguel Lopes wrote:
>
> > > > I'm experimenting with dynamically generating functions, aka 'actions'
> > in
> > > > controllers. However, I've been unsuccessful. I can use exec and
> > closures
> > > > successfully in regular Python code, but I can't make it work with
> > web2py.
> > > > Any thoughts on how to achieve this?
>
> > > > web2py finds functions by reading the (static) controller file itself.
> > See
> > > > gluon.compileapp.run_controller_in, in particular this line:
>
> > > >         exposed = regex_expose.findall(code)
>
> > > > So, no dynamically generated controller actions, at least not directly.
>
> > > > I haven't given this much thought, but one way you might accomplish the
> > > > same effect would be to push the dynamic function name down one level
> > in the
> > > > URL, something like:http://domain.com/app/dynamic/index/function/...
>
> > > > ...where 'dynamic' is the controller with dynamic functions, and index
> > is a
> > > > (static) function that calls function dynamically. You might optimize
> > the
> > > > lookup function to extract only the one desired function from your page
> > > > table.
>
> > > > Depending on your overall URL structure, you could rewrite the URLs to
> > > > shorten them up.
>
> > > > A closure example - FAILS in web2py:
> > > > top_pages = db(db.page.id > 0).select()
> > > > def add_actions(top_pages):
> > > >     for page in top_pages:
> > > >         def inneraction(msg):
> > > >             sidebar = None
> > > >             return dict(message=msg, sidebar=sidebar)
> > > >         inneraction.__name__ = page.link_name
> > > >         globals()[page.link_name] = inneraction
>
> > > > add_actions(top_pages)
>
> > > > A exec example - FAILS in web2py:
>
> > > > ACTION_TEMPLATE = """
> > > >  def NEW_ACTION():
> > > >     sidebar = None
> > > >     return dict(message='s', sidebar=sidebar)
> > > >  """
> > > > top_pages = db(db.page.id > 0).select()
> > > > def makePages(pages):
> > > >     for page in top_pages:
> > > >         exec ACTION_TEMPLATE
> > > >         NEW_ACTION.__name__ = page.link_name
> > > >         globals()[page.link_name] = NEW_ACTION
>
> > > > makePages(pages)
>
> > > > Miguel

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