What are the options for ForeignKey in Django?
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What are the options for ForeignKey in Django?
In Django, a ForeignKey is a field for creating a many-to-one relationship. You can customize it with options like on_delete, related_name, and related_query_name.
Can you explain the on_delete option?
The on_delete option determines what happens to the related objects when the referenced object is deleted. Common options include CASCADE, SET_NULL, and PROTECT.
What does CASCADE do?
CASCADE means that when the referenced object is deleted, all related objects will also be deleted automatically.
Are there any other options I should know about?
Yes, other options include SET_NULL, which sets the foreign key to null, and PROTECT, which prevents deletion if there are related objects.
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