#django

Hi all, I am trying to get my app to install in heroku and I can't :(. this is the log tail https://pastebin.com/raw/R2jSuwW5 THis is the app in the branch development https://github.com/TheDemocracyFoundation/epito... . Development succeeds, Release phase succeeds, Deploy succeeds, I open the app and it gives me "Application error". any ideas please ? :/ Must be a problem with my heroku configs, I can deploy the app

just fine in my computer

np i fixed it

Now I'm getting a Server error (500) when I try to open the app... please help ? :(

"/app/.heroku/python/lib/python3.6/site-packages/django/db/models/fields/__init__.py:1421: RuntimeWarning: DateTimeField Poll.PL_ENDDT received a naive datetime (2018-09-08 15:12:36.505311) while time zone support is active.

2018-09-08T15:12:36.509160+00:00 app[web.1]: RuntimeWarning)

Combined2857: a RuntimeWarning usually doesn't result in a server error

(you should still fix it, you're probably using datetime.now instead of django.utils.timezone.now as a default Poll.PL_ENDDT?)

knbk: you are right, the problem is elsewhere

I can see the login screen of my app, but when I login it gives me a 500 error. here is the log at=info method=GET path="/dashboard/" host=gadfgadfgadfga.herokuapp.com request_id=dd98c72b-9482-4152-aec4-b69ab8027124 fwd="125.253.57.246" dyno=web.1 connect=0ms service=232ms status=500 bytes=234 protocol=https

this is the html of the app in question https://github.com/TheDemocracyFoundation/epito...

also other apps don't work, admin page and login page works

must be somethign with the static files of those apps? I have debug = False and whitenoise to serve the static files

But I just installed whitenoise and trying to make it work, can someone take a look to see if I have configured it incorectly ? I read the official and many other guides and I think I did a good job ?

you should have a traceback in your log files that tells you what the actual error is

Turns out i didn't do migrations correctly

in the Admin pages there is this functionality of selecting some records and then start some 'action' for these records. How would I add such functionality in regular templates/views?

a modelform with additional checkbox, modelformset_factory, form with select action options and a submit button. Nothing magical.

And then piece of code to tie all this together.

i dont get it. It is a ListView, not a form.

What is listview?

build in generic view

What is?

How that relates to your question?

u trollin?

No. I've been doing this 10 years and I still can't read peoples minds.

I don't know how that built in generic ListView relates to your question.

Admin does have a *list view* but it's completely custom one and has nothing to do with built-in generic ListView.

i'm not using Admin, I just mentioned it as an example to describe the functionality I'm after

And I gave you an answer you could use.

you're not making any sense to me.

What part was the unclear one?

If I wanted to build a simple app like simplenote or bear notes, what would my models look like. Would a Note model point to a file, or would I just save the note in a TextField? I am guessing that saving the notes in a TextField is not a good idea due to the db getting huge very fast.

jtiai: all. it reads like random words.

lxer: Wel I just gave you list of components that you could use. How you do that is really up to you.

maks25: How big notes are you expecting?

jtiai: would be user specific, but probably multiple pages at least

maks25: multiple pages of what?

text notes

Like notes for e.g. Biology

but how big size that page would be if written by hand?

10,000 characters or more

Well that would be ~10kb.

is code on line 156 actaully necessary

you have just set is staff and is superuser to true

why bother checking it

eb0t: Since it's done by code when you use that.

broken code may omit those values.

ah thanks jtiai

or set them false actually.

jtiai: yea but if you have thousands of users, and each user has tons of notes each a few pages long. At what point would I want to take it out of the db and store it in separate files?

maks25: When you have more than few terabytes of data.

jtiai: alright then, textfield it is

I bet that most of your notes will be just few lines of text.

jtiai: yea most likely

jtiai: I was looking at different note taking software, and all of them were either super bloated, or too simple. Figured it might be fun to make my own

That would be very fun. Then allow markdown...

jtiai: yea def

jtiai: I want to add a flashcard type of feature, so it’s easy to review notes and test yourself

except with raw sql, is there a way with a queryset to use something like "with recursive" ?

I'd like to retrieve a tree of folders

foxmask: Django 2.1 should have window functions that may be able to do that.

Can't guarantee though.

i've a correct raw SQL but before putting it inside a model.objects.raw() i'd like to find a more django way to do it

ok

Also you might be able to setup your own window function expression to get the data you want to.

hi! I come from flask, thinking of switching to django. I learn best from books and I am thinking now of tango with django, 2scoops and the testing goat. From what I've read so far people say that 2 scoops is mostly a best practices summary, and the that testing book is the best way to go. Looking at the book, it uses django 1.11, and I've read that django> 2.0 introduces a lot of changes. Will it be okay to

use this book?

I meant that it introduces a lot of major changes in comparison with previous versions.

no, mostly some configuration changes

basics are all the same

great

what would be an important change to consider?

kinda overthinking here, I just don't want to accidentaly learn python 2.7, lol

url syntax is diferent. and there was something with the way the template folders are defined in the config

lxer: okay, I will check those out, thanks

well, 2.0 introduces an additional, simpler url syntax. The old syntax still works

i doubt the old syntax still works

why do you doubt that?

because I had to change it in some apps to make it work