#django

Hello, may not be django related, assume I have a master view and a detail view within the same template, and the user created a successful entry. I'd like the redirected (to) template to show the record he created in the detail view. How would i approach such a thing? (Should i follow something similar to how messages work? Only on next request?)

guys i've deployed my website to heroku now but when i try to reach /admin/ it throws server error 500

anyone can help me ?

xterm well redirect to the detail view, i can't see a problem for now

Fuyou: I can't think of a way to pass additional data while redirecting, since there's no context. I was thinking either session or query args.

(Doh, that would be 2 ways, but I'm not sure either is the correct way)

xterm what additional data you need? I thought you need just new pk or slug depending on how you adress detail views

hey guys i've got a question is the docs.djangoproject.com the official site?

anyone here experienced with timezone (USE_TZ)?

darkmutt: yes; that's the official docs

then would someone be as kind as to tell me what this means: A model is the single, definitive source of data about your data, I'm in the tutorial01 from the intro section and got confused with that line

heroku keeps throwing error 500 pf

I have a client that wants to send POST to my django app. how do I do this? right now I just get "Origin null is not allowed by Access-Control-Allow-Origin"

darkmutt: something along these lines, if you have a model named 'Dog', than this Dog model should be the only source about the Dog info. Thus, store everything related to Dogs in this model / instances.

ok that makes more sense, thanks bouke :)

From the documentation I'm using the TimezoneMiddleware. Everything is working fine, expect well… it's a HUGE performance drain. I've been doing some ab-testing, and the results made me sad (concurrency=2):

without timezone.activate: 15,5 ms per request (128 req/s)

with timezone.activate: 273,9 ms per request (7,6 req/s)

why in da heck would timezone take that much all by itself?

I want to inspect what's written when into the test_database, but pgadmin always shows me an empty table.

(note: this is on a server running through nginx/gunicorn and without any other load on the machine)

Is the data just written in memory?

bouke, it must depend on what you are doing with the timezone, since the middleware from the documentation only saves a value in a local()

shredding are you reffering to this ? https://docs.djangoproject.com/en/1.5/topics/te...

Fuyou: Yes.

It's not in memory, but i can't access the data.

twoface: hmm yes, that's true. Why wouldn't the normal timezone machinery not slow things down, using the default timezone definition? It just needs to do the same things, but just using a different timezone...

Fuyou: I'm doing a model.foreignmodel_set.add(foreignmodel) and want to know if all changes that I made to foreignmodel will be persisted or if just the foreign key will be added. After debugging the add() method, i guess, all changes will be persisted (that would be good) but I'd like to see it in the db to be sure.

bouke, i have no idea - perhaps try to remove stuff from your view bit-by-bit to find out what takes such a long time

or use some profiling tools

Is there an attribute on the model that i can observe wether all changes have been persisted? I guess so, but can't find it.

no, aside from .pk, but that's only for the first save

ok ...

twoface: I'd really like to profile things; but profiling django is a pain and the tools aren't any better :(

well, the add() methods calls obj.save(), so all data should make it.

bouke: hu? profiling django isn't that hard

bouke, i've had quite some success using profiling middleware

(Still does not explain why my test database is always empty).

shredding >>>https://docs.djangoproject.com/en/1.5/topics/testing/overview/#the-test-database

"Regardless of whether the tests pass or fail, the test databases are destroyed when all the tests have been executed."

Fuyou: I have read that, i have set a breakpoint within a test.

Whatever, i just do a Mymodel.objects.all() and look for it.

hi uhm i got to part 2 of tutorial in here https://docs.djangoproject.com/en/dev/intro/tut... but there's nothing displayed in /admin site, any advices would be quite helpful??

nvm,sorry got the wrong version for the tut

can I invoke model instance method from ValueQuerySet ?

twoface: tried profiling with cProfile and hotshot; but from their output, there doesn't seem to be a difference. See https://dpaste.de/ns1ct/ and https://dpaste.de/pCxCi/.

bouke, perhaps your benchmarking was wrong?

twoface: benching with `ab -c 2 -n 1000 -C "sessionid=XXX" http://10.179.131.135/` and the outcome is consistent with previous outcomes. The only thing I'm changing inbetween benchmarks is commenting out the timezone middleware and restarting gunicorn.