jeffkamo / django-test

Django's Tutorial app

Getting started

python manage.py runserver

Visit http://127.0.0.1:8000/

If there is an error that claims polls is missing, you'll need to install my django-polls app.

# I had to use pip3 instead of pip to get this to work
pip3 install --user path/to/django-polls/dist/django-polls-0.1.tar.gz

Migrations

After changing a model, database migrations will need to be generated and applied.

python manage.py makemigrations polls
python manage.py migrate

To preview what sort of database query is generated by any given migration, run (replacing 0001 with the migration number of your choice)...

python manage.py sqlmigrate polls 0001

Shell sandbox

Import modules, apps and models to fiddle with them.

python manage.py shell

For example, test adding, updating and deleting items from the database via models.

python manage.py shell
>>> from polls.models import Question
>>> from django.utils import timezone
>>> q = Question(question_text="What's up?", pub_date=timezone.now())
>>> q.save()
>>> q.choice_set.create(choice_text='The sky', votes=0)
>>> c = q.choice_set.create(choice_text='Just hacking again', votes=0)
>>> c.delete()
>>> q.choice_set.count()

Admin

After rulling runserver (as above in "Getting started"), visit at http://127.0.0.1:8000/admin/

Create a user with:

python manage.py createsuperuser

Takeaways

I got to familiarized myself with...

• Django's project structure
• General workflow
• Customizing the Admin interface
• The relationship between models, views and templates
• How to make and apply database migrations
• How to handle basic HTTP requests
• Django's routing system via urlpatterns
• How to apply relative links without hardcoding URL paths
• How to render simple HTML pages
• How to create custom Django packages, and install them