On Friday, October 4, 2013 12:00:47 PM UTC+5:30, dspruell wrote: > > On Thu, Oct 3, 2013 at 6:15 AM, graeme <[email protected] <javascript:>> > wrote: > > I disagree that breaking the back button is always bad. For example > suppose > > you have a series of forms (i.e. a "wizard"): > > > > Page 1) fill in form. On POST creates a new Model() and saves it to the > > database > > 2) do stuff to the object (e.g. add inlines, whatever). > > 3) ....whatever comes next > > > > At stop two, user clicks back. They then post the form again, and get > > another object. On the other hand the page in step 2 can provide a back > > button on the page that takes the user back to edit what they entered on > > page 1. Which is more useful? I would say the latter - and users may not > > then understand that the browser back button and page back button do > > different things. > > Django supports this form wizard behavior in a sane way through Form > Wizards: >
Its the right way to do it in general, agreed - although in some cases it seems to be more work than doing it from scratch. > > https://docs.djangoproject.com/en/dev/ref/contrib/formtools/form-wizard/ > > In the case of form wizards, each step through the series of forms in > the wizard occurs from the same URL, and the API provides users a way > to traverse individual forms (steps) in the wizard in a controlled > way. If the client uses the browser back button, it drops them back > from the URL the form wizard is served from, not to a previous step in > the form. > It does not, in itself, answer my question, because clicking the back button after posting a page takes you back to the previous (state of the) page, even if you remain on the same URL. I think the answer is avoid breaking the back button, unless its essential. > > DS > > > > > > On Tuesday, October 1, 2013 8:33:41 PM UTC+5:30, antialiasis wrote: > >> > >> You should still be able to use the back button; it just shouldn't try > to > >> post the data again if you do so. Are you getting a prompt about > resending > >> post data, or are you just talking about being able to use the back > button > >> at all? If the latter, that's exactly what should happen. Breaking the > >> user's back button is bad. > >> > >> On Tuesday, October 1, 2013 12:41:20 PM UTC, graeme wrote: > >>> > >>> The Django docs (and a lot else) recommend redirecting after > >>> successfully processing a post request (if it changes data). i.e. > post, the > >>> save stuff to the database, then redirect. > >>> > >>> Current browsers seem to allow this. I have tried Chromium 28 and 24 > on > >>> Linux, I user return redirect(...) after the post, and I can still use > the > >>> back button. > >>> > >>> Is it my configuration, or is it usual? What is the best practice if > this > >>> is broken? > >>> > >>> In some cases I think tracking where the user is (in the session, or > >>> using the state of a particular object such as an order model), and > >>> redirecting any request for an earlier page in a sequence may be the > way to > >>> go. Or is this a solved problem that I am too far behind the curve to > know > >>> about? > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "Django users" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to [email protected] <javascript:>. > > To post to this group, send email to > > [email protected]<javascript:>. > > > Visit this group at http://groups.google.com/group/django-users. > > To view this discussion on the web visit > > > https://groups.google.com/d/msgid/django-users/cf0dd1f1-b004-4595-800f-1190ca9f4171%40googlegroups.com. > > > > > > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > Darren Spruell > [email protected] <javascript:> > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/06b43549-0859-4304-af9e-b7ba719177c9%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
