Django Review 1st

django installation

• sudo pip install Django

create a project

• steps:

  django-admin.py startproject pims
  python manage.py startapp polls
  python manage.py makemigrations polls
  python manage.py sqlmigrate polls 0001
  

try:

python manage.py migrate
python manage.py shell

create a user

python manage.py createsuperuser

testing

• python -c "import django; print(django.get_version())"
• python manage.py runserver

faq

• Projects vs. apps

What’s the difference between a project and an app? An app is a Web application that does something – e.g., a Weblog system, a database of public records or a simple poll app. A project is a collection of configuration and apps for a particular Web site. A project can contain multiple apps. An app can be in multiple projects.

• Django 1.7 upgrade error: AppRegistryNotReady: Models aren't loaded yet

  You try to reference a model at the import time. It is no longer possible in Django 1.7. Django 1.7 allows you to use your models only after all of the applications are loaded. You should move this call to the ready callback of AppConfig http://stackoverflow.com/questions/25680803/django-1-7-upgrade-error-appregistrynotready-models-arent-loaded-yet

tutorial

• https://docs.djangoproject.com/en/1.7/intro/tutorial01/
• https://docs.djangoproject.com/en/1.7/intro/tutorial02/

virtualenv

• https://virtualenv.pypa.io/en/latest/

tips of move macports to homebrew

steps:

sudo port -f uninstall installed
sudo rm -rf /opt/local
sudo rm -rf /Applications/DarwinPorts
sudo rm -rf /Applications/MacPorts
sudo rm -rf /Library/LaunchDaemons/org.macports.*
sudo rm -rf /Library/Receipts/DarwinPorts*.pkg
sudo rm -rf /Library/Receipts/MacPorts*.pkg
sudo rm -rf /Library/StartupItems/DarwinPortsStartup
sudo rm -rf /Library/Tcl/darwinports1.0
sudo rm -rf /Library/Tcl/macports1.0
sudo rm -rf ~/.macports