On Dec 9, 9:21 am, Quetzacotl <quetzaco...@gmail.com> wrote:
> Hello, this is rather python problem, but maybe You can help. What i
> want to do is to return value in another function calling from other
> function.
>
> It doesnt mean i want this:
>
> def Func():
> return 1
>
> def Func2():
> return Func()
>
> I want function Func to return 1 directly in Func2 as it is Func2
> returning it.
>
> I have this problem because view function has to return response
> object and my function that adds element to database (comments)
> returns HttpResponseRedirect or context dict with form that has
> errors.
> If it returns redirect then i want view function to return it, if it
> return context then i dont want to return it but rather give it to
> render_to_response.
>
> It comes to this:
>
> def Add():
> #form valid, add to db
> return { 'redirect': HttpResponseRedirect('url'), }
>
> #form not valid
> return { 'form': form, 'redirect': 0, }
>
> def View(request):
> add = Add()
> if add['redirect']!=0:
> return add['redirect']
>
> return render_to_response(template,add)
>
> Thing i dont want here is if statement checking if there is redirect,
> so i want within function Add return HttpResponseRedirect as it is
> View function.
>
> I dont know if this is possible.
You can use isinstance() function to check if returned value is
an instance of some class, and make for simpler code:
obj = add()
if isinstance(Cls, obj): return obj
..
return render_to_response(template, obj)
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