What is a ForeignKey in Django?
An example of an AI chatbot conversation about Django ForeignKey relationships.
What is a ForeignKey in Django?
A ForeignKey in Django is a field that creates a many-to-one relationship between two models.
Can you give me an example of how to use it?
Sure! If you have a Book model and an Author model, you can add a ForeignKey in the Book model to link it to the Author.
What does the syntax look like?
It looks like this: author = models.ForeignKey(Author, on_delete=models.CASCADE).
What does on_delete=models.CASCADE mean?
It means that if the referenced Author is deleted, all related Book instances will also be deleted.
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