What methods can be used to determine the structure of a model in Django and how to implement them?

In Django, the structure of a model is defined using classes that inherit from django.db.models.Model. The main way is to declare model fields as class attributes with field types from django.db.models.

Example:

from django.db import models

class Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=10, decimal_places=2)
    description = models.TextField(blank=True)
    created_at = models.DateTimeField(auto_now_add=True)

You can also use:

• Meta class for configuring model behavior (e.g., table name, ordering).
• Abstract models for reusing fields and logic.
• Migrations for creating and modifying the database structure based on models.

Thus, the model structure is a class with fields describing the data that will be stored in the database.