Models and Databases - Caleb Django Crash Course

Models and Databases

Run this to do the built in database stuff.
Also now the admin page will work
python manage.py migrate
python manage.py createsuperuser
just used terry/jacqui
Django uses ORM - Object Relational Mappers
Meaning you write Python stuff and it gets converted to SQL stuff
Makes converting from a test db like sqlite3 to mariadb or postgres much easier

Create First Model

create models.py inside movies

from django.db import models

# Django automatically creates an id field unique to each row in the table
class Movie(models.Model):
    title = models.CharField(max_length=200)
    year = models.IntegerField()

Now tell django that we need to create / update our model
movies in this case is the name of the app in settings.py/INSTALLED_APPS python manage.py makemigrations movies
Now migrate the changes - if you're working with multiple apps you can specify an app like in makemigrations python manage.py migrate

Add the New Model to the Admin Section

Create movies/admin.py

# Import our Model and the Django Admin Stuff

from .models import Movie
from django.contrib import admin

# Now register the model with the admin site
admin.site.register(Movie)

Now you can add movies on the admin site. But right now the admin page just shows Movie object(1)

To get the title to show we need to add a method to our class in models.py

    def __str__(self):
        return f"{self.title} from {self.year}"