I've read the tutorial but I didn't fully appreciate how useful CBV are. Amazing as well that sometimes you can write almost no code. Thanks a lot for explaining that.
On Fri, Aug 26, 2016 at 3:29 PM, Andromeda Yelton <andromeda.yelton@gmail.com> wrote:
In my experience, CBVs are useful when the view you want to write is basically a create, read, update, or delete operation on a single database item, or a bunch of instances of the same model (...and it turns out a lot of web app pages are just that). And they're useful because they let you do that with almost no lines of code - they take care of all the things you'd have to write over and over, and let you focus on the things that are unique to your use case.The farther away your business logic is from that, the more you need to understand the actual methods available and the inheritance tree and so forth. It took me a while to get over this hurdle too, but now that I have I use CBVs exclusively.--On Fri, Aug 26, 2016 at 10:13 AM, Neil Hunt <hunt.neil@gmail.com> wrote:To view this discussion on the web visit https://groups.google.com/d/msheh heh. I don't fully appreciate the usefulness of CBV at the moment. Getting a simple example working helps as much as reading the tutorial. Thanks again for your help,Neil--On Fri, Aug 26, 2016 at 2:24 PM, Sergiy Khohlov <skhohlov@gmail.com> wrote:To view this discussion on the web visit https://groups.google.com/d/msNever mind.Few year ago I was thinking that moving to CBV is bad idea, but suddenly BUUUHHH !! in my head and everything was clear.--On Fri, Aug 26, 2016 at 3:40 PM, Neil Hunt <hunt.neil@gmail.com> wrote:To view this discussion on the web visit https://groups.google.com/d/msNeilKind regards,Hello Serge,I can't believe that's all I have to add to get the class based views to work. It seems easier to get it to work than I thought it would be. Now that you've explained it. Thank you so much for that.--On Fri, Aug 26, 2016 at 11:46 AM, Sergiy Khohlov <skhohlov@gmail.com> wrote:To view this discussion on the web visit https://groups.google.com/d/msHello Neil,It is nota problem to use Class based view. Could you please update your views.py with next code.Look like you would like to have detail of the deposit in this case add next string to the headerfrom django.views.generic import DetailViewfrom models import Account1, Person# next you should create a special view class for each Account1class Deposit(DetailView):model = Account1Of course function Deposit is uselessthats all.P.S. Look like better way is adding auth and receive person using auth data. In this case every authorized person can connect to his account using auth info and account id--On Thu, Aug 25, 2016 at 8:27 PM, Neil Hunt <hunt.neil@gmail.com> wrote:To view this discussion on the web visit https://groups.google.com/d/msThank you so much Andromeda. I didn't know you could use class based views. I'll have a look at the documents. I don't know why I was trying to use them when I didn't need to.--On Thu, Aug 25, 2016 at 4:23 PM, Andromeda Yelton <andromeda.yelton@gmail.com> wrote:--The stacktrace is helpful, thanks!The specific message with the AttributeError is helpful here: `AttributeError: 'module' object has no attribute 'DepositView'`The line above it is ` File "/home/soupdragon/DJapps/banking/mybank/banking/urls.py", line 8, in <module> url(r'^deposit/$', views.DepositView.as_view(), name='deposit'),`So I checked to see if your views.py contains anything named DepositView...and it does not. That's why the AttributeError is showing up.The `DepositView.as_view()` syntax is suitable for class-based views, which means I expect to see something in your views.py to the effect of:class DepositView(View):def post(self, request, *args, **kwargs):// the logic in your deposit() function actually belongs hereHave a look at the class-based views documentation to see what the different classes are, and what options they provide you.Alternately, your urls.py could reference views.deposit (which does exist) instead of views.DepositView (which does not).Hope this helps!On Thu, Aug 25, 2016 at 11:14 AM, Neil Hunt <hunt.neil@gmail.com> wrote:Thanks for your speedy reply, I've attached the stack trace
On Thursday, August 25, 2016 at 4:00:16 PM UTC+1, ludovic coues wrote:Could you share the full stack trace you get when trying to run the server ?
The attribute error should come with a ton of information like the
file and the line where the error occur.
2016-08-25 16:57 GMT+02:00 Neil Hunt <hunt...@gmail.com>:
> I've beem working on a simple banking app based on the Django tutorial.
> Thanks to your help it almost works now. It was working using templates but
> after making some changes to get HttpResponseRedirect to work I changed what
> was in the urls file like it shows in the tutorial. Now, the server doesn't
> run. It says there's an attribute error. I've temporarily left the user name
> and password in at the moment. I had a look at their tutorial how to do a
> use the Django authentication system (thanks for telling me about that) and
> I'm going to change that after I understand what's going on here. It's
> amazing how much you can do with Django. Do you think with time you get more
> used to what different errors mean? The errors seem new and confusing to me
> at the moment. Any help would be very much appreciated. Thanks in advnace.
>
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Cordialement, Coues Ludovic
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