get() for single objects in Django - Mini Project: Build & Apply

Using Django's get() to Retrieve a Single Object

📖 Scenario: You are building a simple Django app to manage a library. You want to find a specific book by its exact title from the database.

🎯 Goal: Learn how to use Django's get() method to retrieve a single object from the database by a unique field.

📋 What You'll Learn

Create and save a Django model instance representing a book with a title and author.

Set up a variable with the exact title to search for.

Use Django's get() method to retrieve the book with the matching title.

Handle the final step to confirm the retrieval in the code structure.

💡 Why This Matters

🌍 Real World

Finding a specific record in a database by a unique identifier is common in web apps, like looking up a user by email or a product by SKU.

💼 Career

Understanding how to retrieve single objects with get() is essential for backend developers working with Django to build efficient and precise data queries.

1

Create a Book instance

Create and save a Django model instance called book with title set to 'Django Basics' and author set to 'Alice'.

Django

# Create and save a Book instance with title 'Django Basics' and author 'Alice'
# Your code here

Need a hint?

Use book = Book(title='Django Basics', author='Alice'); book.save() to create and save the instance to the database.

2

Set the search title variable

Create a variable called search_title and set it to the string 'Django Basics'.

Django

book = Book(title='Django Basics', author='Alice')
book.save()
# Create a variable search_title with value 'Django Basics'
# Your code here

Need a hint?

Just assign the string 'Django Basics' to search_title.

3

Retrieve the book using get()

Use Django's Book.objects.get() method with title=search_title to retrieve the book. Store the result in a variable called found_book.

Django

book = Book(title='Django Basics', author='Alice')
book.save()
search_title = 'Django Basics'
# Use Book.objects.get(title=search_title) and assign to found_book
# Your code here

Need a hint?

Use Book.objects.get(title=search_title) to find the book.

4

Confirm retrieval with a final statement

Add a line that assigns found_book.title to a variable called result_title to confirm the book was retrieved.

Django

book = Book(title='Django Basics', author='Alice')
book.save()
search_title = 'Django Basics'
found_book = Book.objects.get(title=search_title)
# Assign found_book.title to result_title
# Your code here

Need a hint?

Assign found_book.title to result_title.