How do I handle one-to-many queries in Django?

How do I handle one-to-many queries in Django?

In Django, you can handle one-to-many relationships using ForeignKey fields. For example, if you have a Book model and an Author model, you can define a ForeignKey in the Book model that points to the Author model.

Can you show me an example of the models?

Sure! Here's a simple example:

class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    title = models.CharField(max_length=200)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)

How do I query all books by a specific author?

You can use the related name to query all books by an author. For example:

author = Author.objects.get(id=1)
books = author.book_set.all()

What if I want to filter books by a specific title?

You can filter books using the filter method. For example:

books = Book.objects.filter(title__icontains='Django')