You want to add pagination to your repository method fetching all posts. Which of the following correctly implements pagination with page number and page size parameters?

hard📝 Application Q9 of 15

Flask - Ecosystem and Patterns

Adef get_posts(self, page, size): return Post.query.limit(size).offset(page).all()

Bdef get_posts(self, page, size): return Post.query.paginate(page=page, per_page=size).items

Cdef get_posts(self, page, size): return Post.query.paginate(page, size).all()

Ddef get_posts(self, page, size): return Post.query.paginate(page=page, per_page=size).all()

Step-by-Step Solution

Solution:

Step 1: Recall Flask-SQLAlchemy paginate method signature
It uses named parameters: page and per_page.
Step 2: Understand return type
paginate() returns a Pagination object; .items gets current page records.
Step 3: Match correct option
def get_posts(self, page, size): return Post.query.paginate(page=page, per_page=size).items correctly uses named parameters and accesses .items.
Final Answer:
def get_posts(self, page, size): return Post.query.paginate(page=page, per_page=size).items -> Option B
Quick Check:
Use paginate(page=, per_page=).items for pagination [OK]

Quick Trick: Use paginate(page=, per_page=).items for paged queries [OK]

Common Mistakes:

MISTAKES

Using offset with page number directly
Calling all() on paginate result

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More Flask Quizzes

You want to add pagination to your repository method fetching all posts. Which of the following correctly implements pagination with page number and page size parameters?

Step 1: Recall Flask-SQLAlchemy paginate method signature

Step 2: Understand return type

Step 3: Match correct option

Final Answer:

Quick Check:

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