Related name for reverse access in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a ForeignKey with a related name for reverse access.

Django

class Book(models.Model):
    author = models.ForeignKey(Author, on_delete=models.CASCADE, related_name=[1])

Drag options to blanks, or click blank then click option'

A"author"

B"books"

C"book_author"

D"authors"

Attempts:

3 left

💡 Hint

Common Mistakes

Using the model name 'author' as related_name causes confusion.

Omitting quotes around the related_name string.

The related_name defines the name to access all books from an author instance, so "books" is a clear and common choice.

2fill in blank

medium

Complete the code to access all books of an author using the related name.

Django

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

Drag options to blanks, or click blank then click option'

Abooks

Bbook_set

Cauthor_books

Dbook

Attempts:

3 left

💡 Hint

Common Mistakes

Using the default book_set when a related_name is set.

Using singular form which is incorrect for reverse access.

You use the related_name defined in the ForeignKey to access related objects. Here, books is the correct related name.

3fill in blank

hard

Fix the error in the ForeignKey definition to correctly set the related name.

Django

class Comment(models.Model):
    post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name=[1])

Drag options to blanks, or click blank then click option'

A"comments"

B"comment"

C"post_comments"

D"post"

Attempts:

3 left

💡 Hint

Common Mistakes

Using singular related_name causing confusion in reverse queries.

Using the model name 'post' which conflicts with the ForeignKey field name.

The related_name should be plural to represent multiple comments related to a post, so "comments" is correct.

4fill in blank

hard

Fill both blanks to define a ForeignKey with a related name and access the related objects.

Django

class Entry(models.Model):
    blog = models.ForeignKey(Blog, on_delete=models.CASCADE, related_name=[1])

entries = blog.[2].all()

Drag options to blanks, or click blank then click option'

A"entries"

B"entry_set"

Centries

D"blogs"

Attempts:

3 left

💡 Hint

Common Mistakes

Using default entry_set when related_name is set.

Mismatch between related_name and access attribute.

The related_name is set to "entries", so accessing related objects uses the same name.

5fill in blank

hard

Fill all three blanks to define a ForeignKey with a related name, access related objects, and filter them.

Django

class Review(models.Model):
    product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name=[1])

reviews = product.[2].filter(rating__[3]=5)

Drag options to blanks, or click blank then click option'

A"reviews"

Breviews

Cgte

Dlte

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong related_name causing attribute errors.

Using incorrect filter lookup like 'lte' instead of 'gte'.

The related_name is "reviews", so you access product.reviews. The filter uses rating__gte=5 to get reviews with rating 5 or higher.