On 28 nov, 17:12, Peter Otten <[EMAIL PROTECTED]> wrote:
> manatlan wrote:
> > To explain better, here is another code
> > class JQueryCaller(object):
> > def __init__(self,callback):
> > self.__callback=callback
> > self._s=[]
>
> > def __getattr__(self,name):
> > def _caller(*args):
> > sargs=["'%s'"%i for i in args]
> > self._s.append("%s(%s)"%(name,",".join(sargs)))
> > return self
> > return _caller
>
> > def __call__(self):
> > return self.__callback(".".join(self._s))
>
> > class MyObject(list):
> > def __init__(self):
> > list.__init__([])
>
> > js=property(lambda self:JQueryCaller(self.__add))
>
> > def __add(self,j):
> > self.append(j)
>
> > if __name__ == "__main__":
> > o=MyObject()
>
> > o.js.kiki(12).kuku()()
> > o.js.kiki(12).kuku().roro("gfde")()
>
> > assert o==["kiki('12').kuku()", "kiki('12').kuku().roro('gfde')"]
> > here, it uses the __call__ of JQueryCaller by adding the "()" trick at
> > the end ...
>
> > I'd really like to have the same result, without the "()" trick, like
> > this:
>
> > o=MyObject()
>
> > o.js.kiki(12).kuku()
> > o.js.kiki(12).kuku().roro("gfde")
>
> > assert o==["kiki('12').kuku()", "kiki('12').kuku().roro('gfde')"]
>
> You could preallocate slots in MyObject:
>
> from functools import partial
>
> class JQueryCaller(object):
> def __init__(self,callback):
> self.__callback=callback
> self._s=[]
>
> def __getattr__(self,name):
> def _caller(*args):
> sargs=["'%s'"%i for i in args]
> self._s.append("%s(%s)"%(name,",".join(sargs)))
> self.__callback(".".join(self._s))
> return self
> return _caller
>
> class MyObject(list):
> def __init__(self):
> list.__init__([])
>
> @property
> def js(self):
> n = len(self)
> self.append(None)
> return JQueryCaller(partial(self._add, n))
>
> def _add(self, i, j):
> self[i] = j
>
> if __name__ == "__main__":
> o=MyObject()
>
> o.js.kiki(12).kuku()
> o.js.kiki(12).kuku().roro("gfde")
>
> assert o==["kiki('12').kuku()", "kiki('12').kuku().roro('gfde')"]
>
> This will course fail if you try things like
>
> a = o.js.kiki
> a(1)
> a(2)
>
> Peter
great ! you've found the way !
I don't understant the trick for now, but i will study it !
But it works like expected ! great !
thanks a lot
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