DjangoBot: #django

if you don't know Python you might not get much out of it, but tbh you'll soon pick it up

wouldn't it be better for me to look at a turorial for Python itself first

the python docs has a tutorial

Certainly couldn't hurt.

and the django docs has a tutorial

Bacon: sure... and the python website has a tutorial as well

tutorials all around

I could probaby understand django's though

The official Python docs have a tutorial. And if you're already familiar with another language, there's diveintopython.

I find reading code, even languages I don't know ... usually pretty easy

yea, diveintopython.org is a pretty decent intro to the language

hey all, is there an easy way to get a notice of when a specific field has changed in a model?

Not really.

ok, thanks

oh, I guess I can wrap save() and use self._modified_attrs

thanks

hi guys, i was hoping someone might be able to point me in the right direction

Use what?

my request.session.session_key changes every page load

wrapping save or using a signal is what you'd do to detect changes, but not sure about _modified_attrs, whats that?

_modified_attrs appears to be a list of strings with attribute names that have changed

i have 'django.contrib.sessions.middleware.SessionMiddleware' in middleware, and 'django.contrib.sessions' in INSTALLED_APPS

Finder: not in my django source

really?

where is it in yours?

yeah, you're right, sorry

it's a custom meta class. :-/

it doesn't appear to save a cookie for some reason... but if i go to the login page of django-registration the cookie is set

is there something app-specific i should do to make sure the cookie is set?

davos: what happens when you do this? http://docs.djangoproject.com/en/dev/topics/htt...

ah thanks, i'll try now

is there a way to write an app using django as infrastructure but, say, a UI built using gtk so as to have a desktop app?

sure, wire em up e.g. with json

ah

Finder: hmmm 'Please enable cookies and try again.'

i'll try a different browser

yeah same in safari

Finder: this is what i'm trying http://dpaste.com/63919/

what happens?

it outputs ''Please enable cookies and try again.''

I think you're missing set_test_cookie()

doh

thanks, i'll try that

you can do it across multiple pages, have one view that sets it and another that tests it

hmmm yeah that works, it sets the cookie fine

ok, there's some problem in your other logic then, the session middleware is installed and working

how are you trying to use it?

i've got a cart-style thing where products are added to the cart by session_key

it's on app-engine, so cart stuff is stored in the data store

it adds to the cart ok, but since session_key changes every time they keep dissapearing

you can make your own key and assign it to request.session

i've found out that the cookie isn't set for 2 of the apps

look at http://docs.djangoproject.com/en/dev/topics/htt...

I typically use uuid.uuid4() to create keys, and that way they don't actually have any access to the key itself

ah so i have to actually physically add something to the session to force it to create the cookie?

not sure about that, but the sessions is more intended as a cross-session dicrt

dict*

ok, this is all making more sense

thanks a lot for your time/help!!

much appreciated

np, take a look at the exampels at http://docs.djangoproject.com/en/dev/topics/htt... for more precise infpo

geeze I can't spell, but you know what I mean

thanks!

cheers!

does one need to do anything special to override an object's __iter__ method?

specifically in a ModelChoiceIterator

i would be surprised if you did

for some reason my __iter__ never gets called: http://dpaste.com/63923/

oh... I bet I know the reason.

Finder: yep it was in the doc, 'To change this default behavior, set the SESSION_SAVE_EVERY_REQUEST setting to True'

thanks again!

aAafu90

sorry, cleaning keyboard.