#django

already asked on webdev but it's not overly active so I'm repeating myself here.

the powers that be want a carousel on the homepage, with left and right arrows, and page selection buttons at the bottom

also it needs to have a fade animation instead of the normal sliding animation. also width needs to fill the viewport, height fixed

I've already found a solution that doesthe width and height thing which I like, but no buttons or pages or fade

tehre's so many out there

Ruzzy: the fade you can do using a css transition on opacity

what's the DRYest way to do this? https://dpaste.de/yGXO

Ruzzy: I think we're currently using owlcarousel, but yeah, there's tons of them out there.

(in short: get_or_create, but if the record exists, it should be updated with **defaults)

create_or_update isn't there?

yes, that's exactly it! thanks

I suppose I should go through all the methods in the docs sometime...

:)

I'm using the pylint-django plugin for pylint and am still getting no-member errors in all of my tests. Is that normal?

mattsll: last I checked, it wasn't quite complete

Koterpillar: So best bet is to just manually review those and ignore them if I know they're false positives?

what's an example?

Koterpillar: https://paste.ee/p/5QPOb I import a model, generate an instance with django_dynamic_fixture, then reference it. I get no-member errors everywhere I use it. "Instance of 'list' has no 'id' member (no-member)"

I am a little confused as to why it's saying the instance is 'list'.

would someone be able to help me with this stackO issue? It regards saving data to a separate model inside a modelform

mattsll: I'm guessing django_dynamic_fixture is the problem

i have an issue https://dpaste.de/bGEw

mattsll: pylint-django can't see inside that very well

i want to filter out all HousingApplications that have pets that aren't in HouseListing.allowed_pets

but im not sure how to write the query for it

try .exclude(pet__in=F('listing__allowed_pets'))

Koterpillar, you mean: applications = applications.exclude(pets__in=house.allowed_pets.values_list('id', flat=True))

replace the call to values_list with .all()

and... yes

I thought house belonged to the application

Koterpillar: You were right. One of my tests didn't actually need any dummy data. Just using order = Order() on that one made the errors go away.

Koterpillar: So back to my other question... just ignore them?

:-)

mattsll: maybe add typing hints to d-d-f... and then make sure pylint uses them... and then realize there's only so much you can do in a weakly typed language

sorry

computer shat itself, had to reboot

de_dust: see topic for logs

yep, checking now

Hey yall. I've just asked (and answered myself) a question on SO; can anyone offer feedback or a better solution? http://stackoverflow.com/questions/40835222/dis...

Koterpillar, that doesnt work

define doesn't work

it has to exclude HousingApplications where there are HousingApplication.pets that AREN'T in HouseListing.allowed_pets

ah!

so if the HousingApplication has a dog & a cat, but the HouseListing has a bird, then it should exclude it

but if the HousingApplication had a bird, then it should show up

just a bird *

possibly...

applications = applications.exclude(pets__in=Pet.objects.exclude(pk__in=house.allowed_pets.all()))

I don't like that though

hmm

https://code.djangoproject.com/ticket/6065 was about adding notin, and closed with "see exclude"

but I don't think it will work here

that works perfectly, thanks

make sure you explain what's going on in a comment above that line...

out of interest, what's the generated query?

fkn internet lmao

the query is huge, theres heaps of other stuff going on

and yeah, i made "Pet.objects.exclude(pk__in=house.allowed_pets.all())" a variable so its clear now. no need for a comment

hmm... maybe make that a property on the House, then you can say pets__in=house.banned_pets

hi everybody. I've a question related to pip and python. I'm like amateur honestly (python/django/pip) I had used pip with python 3 but now on linux it's installed python 2 by default so, I notice that I just intalled pip for python 2 and there is pip for python 3 aout there. Should I uninstall python-pip and install python3-pip instead? I'm pretty sure I should but please tell me ehat you think

Karmavil: Distro?

Ubuntu 16.04

Karmavil: use virtual environments (see virtualenvwrapper), it's probably packaged as python3-virtualenv or simply python-virtualenv; then you create yourself one with `mkvirtualenv -p $(which python3) myenv` and do work there

Thanks Koterpillar. I was reading about that.. but the previous step is install pip.. that's why I askin

virtualenv will bring pip with it

mmm sorry I know I need pip for virtualenv not for virtualrnwrapper. I will check

Thanks FunkyBob

On Ubuntu, pythonX-virtualenv depends on pythonX-pip

hey guys

great. Thanknyou guys

if i have models.BooleanField(default=False) why does it still require me to set the value when I run a manual sql query?

dashdanw: because the default is in Python, not SQL

FunkyBob: I guess I assumed that it would set the DEFAULT setting in postgres at least

but that's coo'

also what's the best way to always create a subobject when generating another

sub-object?

so if i have user = User() and then i want user.profile_image to always be instantiated as a blank object, is there a way to do that?

post-save signal

profile_image in that case would be an instance of some other Model named ProfileImage

thanks FunkyBob

assuming you just want to make sure one always exists

FunkyBob, so this happened after all my askbot shenanigans: forgot to add the django update to latest 1.8.x in requirements and the rest of the team was trying their hardest to figure out what is wrong

lawl.. thanks to insider info. i know that was a bug markusH fixed :D

:)

glad it's working

you really want to make sure everyone always runs with the same dependencies :)

pip-tools helps