How do I use ForeignKeys in Django Admin?

How do I use ForeignKeys in Django Admin?

To use ForeignKeys in Django Admin, you need to define a ForeignKey field in your model. This creates a relationship between two models.

Can you show me an example of how to define a ForeignKey in a model?

Sure! Here's an example:

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

class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)

This creates a ForeignKey relationship between Book and Author.

How does the on_delete parameter work?

The on_delete parameter determines what happens to the related objects when the referenced object is deleted. For example, models.CASCADE will delete all related books if an author is deleted.

Can I customize how ForeignKeys are displayed in the Django Admin?

Yes, you can customize the display by using the list_display attribute in your ModelAdmin class to show specific fields.