#django

hi all

I have ModelForm which displays a few fields for the model. It seems that passing in the data to the constructor for the fields that the form does not display does not get that data into cleaned_data, nor into the instance when you save()

so although I'm passing a value for the field 'chan' into the constructor of the form, when I do form.save() I get a constraint violation because chan is null

how do I resolve this?

start by showing us your code... use dpaste.com

When creating South migrations, can you specify a default based on another column in each row?

Oli: sure, you have full access to the ORM. but i think you'll have to edit the migration by hand (and maybe use a datamigration)

actually, if you only access the object itself you might be able to do it in the normal interface

nkuttler: that would be a lot simpler (obviously) but any idea what the object instance is called?

Oli: should be documented iirc

nkuttler: Have this second landed in the longer south tutorial and it seems to have a nice block on complicated migrations

Thanks for your help

Is there a good solution for integrating a Django project with Google Analytics Experiments? (a/b testing) I know there is django-lean and django-experiments, but they don't integrate with GA from what I can tell. Tell me someone has solved this problem already.

I have a question about django.core.cache. I have cached a value with a 15 second timeout, but as far as I can tell, it never expires. I tried using cache.delete() and cache.clear() to get rid of it, but when I run cache.get('MY_KEY') it's still there.

I'm using the memcached backend, but when I use the database backend it works fine.

dunno... we use a redis backend, and it works fine, too

Has anyone used django-registration here? I was using the simple backend for a while for early testing, while I got an email setup. Currently have a domain under gmail now. Anyway, wanting to use the default backend... put in the gmail smtp info (smtp.gmail.com, port 465) login, pass. etc. Anyway. With or without the email details, when I click submit it just goes into infinite loading. No error messages, no debug messages.

Any idea? http://dpaste.com/838679/ Url and settings.

hello. I have a big issue, and i guess something really deep in django and/or css is involved. It goes beyong my knowledge on both.

so, it's not a HTML issue?

The original bug is "admin pages for my model display full blank", both in firefox/chromium. Playing with firebug shows no element, but the source looks ok

after lot of time, i think the problem is that my model is call "Ad". As such, admin uses a class 'main-ad' for rendering the body. And this seems to be very very bad.

for some reson, all browsers render a blank page for such a class. Does anybody know more about this ?

in firefox, this comes down to some weird embedded elemhide.css (line 5064)

the whole body is greyed in the dom tree in firebug

(i never saw that)

orzel: Are you using grappelli or some other custom admin?

mattmcc: no, bare django

Because Django doesn't have a file by that name.

as said, it seems to me that this css is 'embedded'. Firefox doesn't report it as an external file

so... no 3rd party apps in your code?

uho, even worse, this comes from an extension it seems : file:///home/orzel/.mozilla/firefox/default.hj0/adblockplus/elemhide.css

mm.. and i guess i have adblockplus on both browser.

ah, well... there you go

Adblock thinks the admin is an ad? :)

hahaha.. stupid fucking thing us hijacking "main-ad" ? :P

yops :/

mattmcc: hey, where do you stand on the "overrid Model.save()" versus "pre/post-save handlers"?

FunkyBob: Kinda depends on what behavior you're adding/changing, I think.

And if it's a third party model, odds are you'll not want to replace it, so signals.

actually i'm not even sure about my name. i use 'Ad' but it's not related to what adblock is supposed to block. Those are real estate ads... :/

mattmcc: my main concern for heading to handlers was finding this in the source:

save.alters_data = True

in the Model class...

hello. I'm trying to do TDD tutorial for Django from http://harry.pythonanywhere.com/tutorial/2/, and I've got to the point of choice_1 = self.browser.find_element_by_name('choice_set-0-choice'). This doesn't throw any exception, but seems to look forever for element on page. What can be a reason?

hi

hi, pierreN

mike_papa: I think you'd have to ask the TDD people...

mike_papa: or read the docs on whatever class that is

FunkyBob: it's from selenium, for functional tests. Selenium channel seems to be... dead. So I tried here as it sounds (selenium) as something that may be popular in django development.

FunkyBob: isn't functional testing commonly used in real development with Django?

what's your point?

you're asking for help in here... about a separate product/tool

lots of different testing approaches are used in Django projects

this is a dumb question, but: i'm wondering, if i want to put 2 e-mail fields in a subscription wepage through a form, do i have to overload the is_valid method to check the two fields are equal ? is there any exemple out there ? same with password ? thank you.

"There are no stupid questions, but there are a lot of inquisitive idiots." :P

ok :)

FunkyBob: I'm just asking as noob if this technique is used, or I'm wasting my time on learning some marginal thing.

pierreN: well, I'd do it in the clean() method of the form, yes.

mike_papa: surel, selenium is used...