django.txt

./manage.py startapp polls2
./manage.py makemigrations polls
./manage.py sqlmigrate polls 0001
./manage.py check
./manage.py migrate

./manage.py shell
./manage.py runserver 0.0.0.0:8000
python manage.py runserver --insecure 0.0.0.0:8000
	# makes django test server to serve the static content in case you are using the DEBUG = False

./manage.py inspectdb
	# Auto-generate the models

change user password
(rocstarott)root@hlsencoder:~/rocstarott/pochoclo# python manage.py shell
Python 2.7.6 (default, Mar 22 2014, 22:59:56)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from django.contrib.auth.models import User
>>> u = User.objects.get(username__exact='ngraizer')
>>> u.set_password('Nicolas.123')
>>> u.save()


django-admin startproject ott

migrate from sqlite to postgres (postgresql already installed)
in ubuntu, first install libpq-dev
 apt-get install libpq-dev

the install on your virtualenv psycopg2
 pip install psycopg2

dump your data from the sqlite DB
 python manage.py dumpdata > sqlite_data_20160407.json

stop your server (gunicorn?)
 supervisorctl stop gu_rocstarott

change your settings.py to point to your postgres DB
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'rocstarott',
        'USER': 'rocstar',
        'PASSWORD': 'Hendrix;',
        'HOST': 'localhost',
        'PORT': '',
    }

run syncdb
 python manage.py migrate --run-syncdb

enter into the DB shell
 python manage.py dbshell
and run TRUNCATE django_content_type CASCADE;
TRUNCATE quickly removes all rows from a set of tables. It has the same effect as an unqualified DELETE on each table, but since it does not actually scan the tables it is faster. Furthermore, it reclaims disk space immediately, rather than requiring a subsequent VACUUM operation. This is most useful on large tables.
When you run syncdb Django populates the database with new data, and to load all your data you need to remove all the newly-define content types.
# source http://stackoverflow.com/questions/3076928/switching-django-project-from-sqlite3-backend-to-postgresql-failes-when-loading

load data 
 python manage.py loaddata sqlite_data_20160407.json

start your server
 supervisorctl start gu_rocstarott

### Sessions
from django.contrib.sessions.models import Session
from django.contrib.auth.models import User

session_key = '8cae76c505f15432b48c8292a7dd0e54'

session = Session.objects.get(session_key=session_key)
uid = session.get_decoded().get('_auth_user_id')
user = User.objects.get(pk=uid)

print user.username, user.get_full_name(), user.email

### Localization
python manage.py makemessages -l es
python manage.py compilemessages

python setup.py sdist
# creates python package
pip install z:\path\to\package.zip
# installs package


from maxlogins.models import Visitor
from django.contrib.auth.models import User
u = User.objects.get(username="admin")

u.visitor.all()

u.visitor.filter(session_key="vu60icbrfxtvchu9jlyz75gzhk29k7y5").exists()
u.visitor.count()

>>> u.visitor.filter(session_key="vu60icbrfxtvchu9jlyz75gzhk29k7y5").exists()
True
>>> u.visitor.count()
1

[s["session_key"] for s in u.visitor.all().values("session_key")]
[s["session_key"] for s in u.visitor.all().values()]
# converts the list of dict to a list with just the session keys

from django.contrib.sessions.models import Session
Session.objects.get(session_key__in=[u'vu60icbrfxtvchu9jlyz75gzhk29k7y5', u'aaaa'])