#django

mcspud: I've stopped getting the self error, but my result is empty values http://dpaste.com/09643A6

I've done a tracback line 39, and the result is there. http://dpaste.com/09643A6#line-39

mcspud: Do i have to be retriving the function, or can I get the return? I'm terferring to attr= on line 12

leaving this for the logs: using mock.patch() on a context processors, with template caching enabled, seems to break tests in very original and inventive ways, for a long time after the fact

solution: don't patch context processors in tests.

bonjello

in django template, when I show one instance in form, should I do it like this: {{form.isntance.field}} ??

Hello!

Friends, I am in dire need of help

I want to make a thing that involves background jobs and I am not sure what tool to pick

Echoloth: celery is quite common tool. Cronjobs also does their job quite fine.

I want to make a tiny game. Travian/Clash of clans/Illyriad type. Each player has a city, each city has a building. The building has level. It produces resources proportional to its level every minute. It can be upgraded to increase its level by 1, but it takes time and resources

So two background jobs

1. Give each player resources generated by his buildings

2. Apply any scheduled building upgrades

celery beats (scheduler) or plain cronjob would do the trick.

Yeah I thought about celery

you need just one game mechanical cron task that will pick up when it ran last and applies any changes that should have happened since then

form[‘phone’] can get <django.forms.boundfield.BoundField object at 0x111ab96d0>, but if ‘phone’ is a variable , how to get the field data

just like form.get(‘phone’) but you know form is an object

Let me state why I didn't just pick celery / whatever

SimpleName: you mean from from.cleaned_data ?

SimpleName: form.cleaned_data? Or you mean that you post random field that has on equivalence in form fields?

jtiai: not cleaned_data,

My concern: if there are 10000 timers, out of which 1000 are about to complete, and I run a celery job every second to query a table of timers (using simple .filter(time_finished__lte=now))

won't I screw up my database with constant querying?

Echoloth: You wouldn't do that.

jitai: How would I go about it?

One job that takes care of all timers.

I am now looking at django-channels as an option

Echoloth: That won't resolve your problem.

it just creates another problem for you.

jtai: In my example I meant that I would run one celery job that would get all finished timers from db and perform actions on them, so yeah, one jon

jitai: how would you do it?

jtiai: I mean if ‘phone’ is an variable, you can’t do like this directly form[phone_var].value(), maybe it’s one python grammar problem

SimpleName: What variable? Can you post code example in pastebin?

of course

Echoloth: Job that reads all changes that has to be done, does it and updates db.

jtiai: https://dpaste.de/BCwV

jitai: Won't it be a major slowdown to keep the timers in database?

That would be the simplest form, unless your task calculations aren't very complex could pretty well hold up to 100k concurrent tasks.

At some point your tasks queue will start saturating. When that happens you need to start figuring out something new.

But YAGNI at least not now.

I bet that your game doesn't yet have even hundreds of players? :D

Heh

Well since its a learning exercise I might as well assume it does

but I see your point

Yeah I think I will just do it with a celery job

Well that's the pitfall - you optimize something that you can't very well even measure.

important learning experience: don't optimize for problems you don't have

^^ very good experience.

anyone's job hiring?

We're constantly.

where at?

Technodrome: Finland.

Thanks guys!

ah , yeah, i'm in nyc :(

should've said that

:^)

Echoloth: Good example, one of our products we produce reports - our reporting engine has worked just fine almost 10 years (written with Python and Django).

Echoloth: Just this January we hit first time problem that report generation was too slow for our new customer.

i've really been having a hard time finding employment after 6 years at another company