#django

how do I add a variable in that tag?

I'm probably missing something blatantly obvious here

How can i catch a NoneType Error, in try: except: ???

oh fu, typo. sorry

chrisramon: NoneType isn't an exception that can be caught.

right the error is AttributeError

sorry

hi

eg. if you try to access an attribute on a variable that is None, it will raise an AttributeError saying something like "AttributeError: 'NoneType' object has no attribute 'blah'"

chrisramon: So you're good now?

yes, thanks mate

Rock on.

wc

dudes python3 already supported ?

and has anyone tried to use django with tornado ?

feedbackflow: it's not supported

it passes the tests

graingert: you talking python3 or tornado ? ;]

i like to integrate django, well actually mezzanine into my tornado server stuff

i read 1.5 will have experimental python3 support

guess i need to tickle with the development branche then

is github current ?

feedbackflow: p3

don't know where's the right place for this, but i got a django app that is running on several web boxes behind a load balancer

when i deploy to it i would liek to take the box off the load balancer, deploy to it, then put it back on the load balancer, but it still gave me some gateway errors.

FunkyBob:

where art thou

he ran to the store to pickup some vegimite

domino14: I'd expect that to either be an issue with the load balancer (shouldn't send any connections to a server removed from the pool) or a need to wait for open connections to close (load balancer used a server when it was in the pool and the connection hasn't closed yet)

iiie: cool. i think it's the second issue, but i do a supervisorctl restart all

i think that waits for the task to end cleanly

maybe not

i dunno (for gunicorn).

no, supervisor just stops what it's doing

restart all prints gunicorn:stopped

then a second or two later

gunicorn:started

gunicorn might be more intelligent if it were the process manager, but supervisor just stops, though you can use different signals for quit, and you can put delays in

ewww vegemite - as bad as marmite

ha, could be chocolate

but supervisor waits until gunicorn is done to stop cleanly i thought

i use it with celery and i see the number of eclery processes going down, but ones that are still busy finish their task

i was under that impression the whole time

then when they are all done it starts again

is there a less ugly way of doing this? http://dpaste.com/807456/ it's just finding that item in the list, and sending it to the bottom

ok so supervisor doesn't cleanly restart it

wtf

supervisorctl pid appname | xargs kill -s HUP

lacrymology: filter(lambda x:x[0] != 'LocalPickup', shipping_options) + filter(lambda x:x[0] == 'LocalPickup', shipping_options) but this makes two passes

also it's not in place

domino14: http://supervisord.org/running.html#signal-hand... says SIGHUP will stop the processes, reload config and restart, but some how I expect it to be the same as supervisorctl update

(doesn't do anything if there weren't config changes)

when it stops them and restarts them, is that clean?

like it will wait until gunicorn is done with its currently procesing tasks

i cant tell

I haven't depended on that in the past, so I couldn't say off hand. I do expect supervisor to wait for the workers to exit cleanly (would be nice, but I haven't expected it -- I didn't remember it from the docs, and don't see it looking now).

There is a stopping process state, so it should wait....

iiie: makes two passes AND creates three new sequences on the fly

graingert: thnx for the response

graingert: i'll try to see if i can hook django-dev unto the tornado stuff i have

is it possible to get the pk innside save() when first saving a Model?

or would my best bet be self.objects.all().order_by("-id")[0] + 1 ?

(or something in that direction)

I just started using django-crispy-forms and they are working out very well, but is there a way to do a DetailView in a similar way?

e.g. auto generated with similar UI (bootstrap)

wow

you guys sound like boss

RoboHak: To an extent, that's what the now-deprecated databrowse app was for.

mattmcc: Is there a replacement for it?

Not really. It could still be maintained & updated, but nobody's stepped up to champion it.

I did try using a standard form with UneditableFields, but that made it still look like a form

Yeah, forms are not generic UI layout devices.

It seems like I'm missing something obvious. What I'm trying to do is just basic CRUD views with django-crispy-forms

Which part are you missing?

mattmcc: How to make a generic template for the DetailView that will render the various fields for that object

Yeah, forms aren't designed for that. You could look at how databrowse does it, but it tends to be easier to just make a template per model.

By default, DetailView will look for a template named <model name>_detail.html

I was hoping to avoid needing to change the template every time I change the model

You could write a relatively simple tag to inspect a model for its fields and give them to you in a list.

Part of the reason there isn't much available to automate this is that detail views of objects tend to have very object-specific layout needs.

mattmcc: Have you used django-crispy-forms?

ok supervisorctl reload or restart all does not kill gunicorn cleanly

I like how it handles layout. I just wish there was something similar for detail views

I used its predecessor django-uni-forms on a couple projects

i have a view that sleeps for 15 seconds for testing, and then if i run it, then reload gunicorn, it gives me a bad gateway

I don't think it's the right pattern. All it's doing is moving responsibility of the layout definition from templates to forms.