#django

oh?

I don't know much about it

its basically an application hosting platform, right?

How does one have a static range?

I want to have something repeated in my template X times.

so, the same HTML repeat an arbitrary number of times.

I guess I'll do range(0, x) and pass that?

if i've built my API using the django rest framework how can i go about re-using the serializers when building my django app (that will be consumed by a browser)?

Django has to have a cleaner way of doing this: http://dpaste.com/2SY52VJ

it creates a trailing ,

and the loop is weird.

toothe: {% if not forloop.last %},{% endif %}

ahh...

i haven't read the django docs on the templating system enough.

thank you much!

you rock, btw.

one of the thing I most enjoy is watching videos on proper python programming, and then refactoring my own code.

greetings

what do I need to google for to learn how to make sure that there are action buttons such that the "delete" checkbox will do something?

I have this great TabularInline with a checkboxes, but no way to delete

G'day

jonez: Formsets have a 'can_delete' argument, but in an inline it's True by default.

The objects are deleted when you submit, not when you check the box.

mattmcc: how is your celery knowledge?

Eh, 3/10?

mattmcc, ya, I see the checkbox, but there aren't any submit buttons so I can use them

jonez: Just like with forms, Django doesn't render the submit button. That's up to your template.

mattmcc, ah, so when I click "save" it should JustWork

Oh, TabularInline. You're in the admin. Yeah.

mattmcc: hmmmmm, I will ask my question any way :) I have a signal that recalculates denormalised values via a celery task when any value changes that affects them. I need to calculate a value using the denormalised values but I also need to change a value that will trigger the signal. I am wondering if it is possible to make change that triggers signal, wait for the denormalised values to be updated,

mattmcc, ok, just tried. it's working. ty

then query the new denormalised values.

mattmcc: Does this require setting up a celery results thingy?

or is there a better way to do this? (disable signal and save manually calculate values)?

I think the word 'value' may have been overloaded a bit in all that. Do you have an example?

mattmcc: no, there is "denormalised values", "value changes that affects denormalised values / triggers signal", "value" (random value),

I also don't have an example yet, I am trying to construct this thing

jonez: If you want to do something after the task has finished, there's the canvas. You can chain things together.

Er, wyoung.

Hey, I’m getting an error in a long running script wrapped in an atomic block, “An error occurred in the current transaction. You can't execute queries until the end of the 'atomic' block.” Problem is I can’t see any errors anywhere. Any ideas how I can find it?

greetings. I've found a few docs which populate a User FK on save.. I'd like to populate a drop-down with the current user

well, a user list, then the default selected item should be whomever is the current user.

what is the proper way to extend Model?

I see lots about extending User, but nothing yet about Model

User is a special case, because it's treated like an interface as well as an implementation.

What sort of behavior are you looking for?

greetings :)

I changed my models.py to use a mixin. it adds some columns to the db, but not according to 'makemigrations'

I am not sure where I screwed up