Nagyman

Workflows (States) in Django

I'm going to cover a simple, but effective, utility for managing state and transitions (aka workflow). We often need to store the state (status) of a model and it should only be in one state at a time.

Common Software Uses

• Publishing (Draft->Approved->Published->Expired->Deleted)

Nagyman

# Change the bindings prefix from Control+b to Control+a
set -g prefix C-a

# Press the binding twice to toggle between windows
bind-key C-a last-window

# Helpful for nested tmux sessions
bind-key a send-prefix

# Press C-a Escape to enter copy mode

Nagyman

from fabric.api import env
from fabric import tasks
from functools import wraps

def _wrap_as_new(original, new):
    if isinstance(original, tasks.Task):
        return tasks.WrappedCallableTask(new)
    return new

def strict_roles(*role_list):

Nagyman

/**
 * DESCRIPTION:
 * Searches for elements with an 'activity' attribute and pushes the activity
 * to the Google Tag Manager (GTM) dataLayer. GTM must be configured to capture
 * the event data, which is structured as follows:
 *      {
 *          'event': 'eventCategory', // The primary divisions of the types of Events you have on your site.
 *          'eventAction': 'action',    // For example, you could define Play or Pause as Actions for a Video
 *          'eventLabel': 'label', // An optional descriptor that you can use to provide further granularity. You can specify any string for a label.
 *          'eventValue': 10 // An optional numerical variable.

Nagyman

import os
import logging
from compressor.filters import CompilerFilter
from django.conf import settings

logger = logging.getLogger(__name__)


class SassMapFilter(CompilerFilter):
    '''

Nagyman

Keybase proof [12/159]

I hereby claim:

• I am nagyman on github.
• I am nagyman (https://keybase.io/nagyman) on keybase.
• I have a public key ASD0s6T8yscXHLdt7SSC1rtZTtkP9D6FitSlpwZqITNNtwo

To claim this, I am signing this object:

Nagyman

from trips.models import *
import matplotlib.pyplot as plt
counts = []
for t in Trip.objects.published():
    counts.append(len(t.visited_countries.all()))

plt.hist(counts)
plt.title("Visited Countries")
plt.xlabel("Number of Countries")
plt.ylabel("Frequency")

Nagyman

[devgapi01.gadventures.internal] out: Traceback (most recent call last):
[devgapi01.gadventures.internal] out:   File "/var/www/gapi-web/gapi_docs/gext/pouch.py", line 251, in make_rst
[devgapi01.gadventures.internal] out:     response = self.make_request(uri, method.lower(), accept=accept)
[devgapi01.gadventures.internal] out:   File "/var/www/gapi-web/gapi_docs/gext/pouch.py", line 134, in make_request
[devgapi01.gadventures.internal] out:     auth_key = self.gapi_config.PASSTHROUGH_AUTHENTICATION_KEYS[0]
[devgapi01.gadventures.internal] out: AttributeError: 'DefaultConfig' object has no attribute 'PASSTHROUGH_AUTHENTICATION_KEYS'

Nagyman

 from optparse import make_option
 
+from django.db import reset_queries
 from django.core.exceptions import ImproperlyConfigured
 from django.core.management.base import BaseCommand
 from django.core.management.base import CommandError
@@ -93,17 +94,28 @@ class Command(BaseCommand):
                 live_objs = live_objs.exclude(
                     pk__in = list(versioned_pk_queryset.values_list("object_id", flat=True).iterator())
                 )

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#!/usr/bin/env python

'''
Modified version from:
    http://stackoverflow.com/questions/298314/find-files-in-git-repo-over-x-megabytes-that-dont-exist-in-head

Examples:

    # Commits bigger than 1MB
    python git-big.py 1048576