Many thanks Yarko and Massimo, now is all clear !!!
On May 24, 9:29 pm, mdipierro <[email protected]> wrote: > web2py defines > > response._caller = lambda f: f() > > this function is in charge of calling the action. You can redefine it > in the controller or models > > def mycaller(f): > # before calling action > r=f() > # after calling action but before calling view > if isinstance(r,dict): > r=response.render(r) > # after calling view before returning response > try: > return r > finally: > # after everything > pass > > response._caller=mycaller > On May 24, 12:58 pm, Yarko Tymciurak <[email protected]> > wrote: > > > On May 24, 8:22 am, Tex <[email protected]> wrote: > > > > Hi, > > > > sorry for my poor english... > > > > I'm wondering how can I put controller code filters like rails > > > (before_filter/ after_filter / around_filter). > > > > Searching into user group posts I see many responses on activerecord > > > callbacks (before_save / after_save) wrongly referred to question on > > > before/after/around filter (controller filter). > > > > Now I know that in web2py I can put code into model /db.py) and that > > > code is execute before globals and before controller code, my > > > questions are: > > > > 1. in rails I writebefore_filteronly for given controllers and given > > > actions, seems that in web2py if I write the code in db.py it is > > > executed for all controllers and actions, is there a way to limit that > > > code execution to given controllers and actions ? (I think that put > > > too much code into db.py may slow the excution of requests, it'isnt ?) > > > > 2. how can I write code execution that emulates after_filter or > > > around_filter ala Rails ? (example: I want to track remote ip for all > > > my controller/actions into database...), > > > I think this may be more a python question than a web2py question: > > With python, you want to read up on decorators. For example: > > > @auth.requires_login() > > def mycontroller: > > ..... > > > can be either before, around, or after (although you can certainly do > > before / after in other, simpler ways). > > > For example: > > > @before_decorator() > > @around_decorator() > > def myfunction: > > .... > > > For background, you could start > > with:http://docs.python.org/reference/compound_stmts.html#functionhttp://w... > > > > Many thanks in advance. > > > Regards, > > - Yarko > > > > Tex
