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/* exported Script */
/* globals console, _, s */

/** Global Helpers
 *
 * console - A normal console instance
 * _       - An underscore instance
 * s       - An underscore string instance
 */

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class ProductAutochangeInlineFormSet(
    forms.inlineformset_factory(ProductAutochangeSet, ProductAutochange, form=ProductAutochangeForm, extra=1)):
    def clean(self):
        super(ProductAutochangeInlineFormSet, self).clean()

        product_pks = []
        num_productautochanges = 0
        for form in self.forms:
            if not form.is_valid():
                continue

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Get the Python library:

pip install newrelic

Add this to your ProcFile:

web: newrelic-admin run-program python cn_project/manage.py run_gunicorn -b "0.0.0.0:$PORT" -w 3 --settings=settings.prod

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pipenv install ipykernel jupyter
pipenv shell
python -m ipykernel install --user --name=$(basename $(pwd))
jupyter notebook
# then in UI, switch kernel to the one matching your pipenv shell name

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GraphQL Subscription with django-channels

Django channels are official way for implementing async messaging in Django.

The primary caveat when working with GraphQL subscription is that we can't serialize message before broadcasting it to Group of subscribers. Each subscriber might use different GraphQL query so we don't know how to serialize instance in advance.

See related issue

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remember_me = forms.BooleanField(required=False, widget=forms.CheckboxInput())

if not self.cleaned_data.get('remember_me'):
    self.request.session.set_expiry(0)

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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# https://hakibenita.com/how-to-turn-django-admin-into-a-lightweight-dashboard

from django.contrib import admin
from django.db.models import Count, Sum, Min, Max, DateTimeField)
from django.db.models.functions import Trunc

from . import models


def get_next_in_date_hierarchy(request, date_hierarchy):

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# -*- encoding: utf-8 -*-

# --------------------------
# Ripped from django project
# --------------------------

from django.contrib.contenttypes.models import ContentType
from django.utils.translation import ugettext as _
from django.utils.encoding import force_unicode

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Default

Powerlevel9k