What are Django models and how do I use them?

What are Django models and how do I use them?

Django models are Python classes that define the structure of your database. They allow you to create, retrieve, update, and delete records in your database using Python code.

Can you give me an example of a simple Django model?

Sure! Here's a simple example:

from django.db import models

class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.CharField(max_length=100)
    published_date = models.DateField()

This model represents a book with a title, author, and published date.

How do I create a database table from this model?

You can create a database table by running the command python manage.py makemigrations followed by python manage.py migrate. This will create the necessary database schema based on your model.

What if I want to add more fields to my model?

You can simply add more attributes to your model class. For example, to add a field for the genre, you could do:

genre = models.CharField(max_length=50)

After adding fields, remember to run makemigrations and migrate again.