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Django Tutorial 16 Related Objects Set Video Lecture | Django: The Ultimate Beginners Guide (in Hindi) - Back-End Programming

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FAQs on Django Tutorial 16 Related Objects Set Video Lecture - Django: The Ultimate Beginners Guide (in Hindi) - Back-End Programming

1. What is a related object set in Django?
Ans. In Django, a related object set is a manager that provides a way to access related objects of a model from a backward relation. It allows you to access the related objects in a reverse direction, i.e., from the model that has a foreign key relationship defined. For example, if a `Book` model has a foreign key to a `Author` model, the related object set allows you to access all the books written by a particular author.
2. How do you access the related object set in Django?
Ans. To access the related object set in Django, you can use the name of the backward relation followed by the keyword "set". For example, if you have a `Book` model with a foreign key to an `Author` model, and the related name for the foreign key is "books", you can access the related object set using `author.books.all()`.
3. Can you filter the related object set in Django?
Ans. Yes, you can filter the related object set in Django. You can apply filter conditions using the same syntax as you would with any other queryset. For example, if you want to retrieve only the books written by an author with a specific name, you can use `author.books.filter(author__name='John')`.
4. How do you add objects to a related object set in Django?
Ans. To add objects to a related object set in Django, you can use the `add()` method provided by the related manager. For example, if you have an `Author` model with a related object set called "books", you can add a book to the set using `author.books.add(book_instance)`.
5. Can you remove objects from a related object set in Django?
Ans. Yes, you can remove objects from a related object set in Django. You can use the `remove()` method provided by the related manager. For example, if you have an `Author` model with a related object set called "books", you can remove a book from the set using `author.books.remove(book_instance)`.
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