Categories of the model, how to implement?

Question

Django

Here is a model for example about a book, a book can have several genres. And when you click on a genre, a list of books that have this genre opens, how to implement this?

Answer 1

class Category(models.Model):
    pass

class Book(models.Model):
    categories=models.ManyToManyField(Category)

https://docs.djangoproject.com/en/2.2/topics/db/mo...