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
