How can I filter data in a Flask app using SQLAlchemy?

How can I filter data in a Flask app using SQLAlchemy?

You can use the filter() method in SQLAlchemy to filter your query results. For example, session.query(User).filter(User.age > 30).all() retrieves all users older than 30.

Can I filter by multiple conditions?

Yes, you can chain multiple filters using and_ or or_. For example: session.query(User).filter(and_(User.age > 30, User.city == 'New York')).all().

What if I want to filter using a list of values?

You can use the in_ method. For example: session.query(User).filter(User.city.in_(['New York', 'Los Angeles'])).all().

How do I handle filtering with optional parameters?

You can build your query dynamically. Start with the base query and add filters conditionally based on the parameters provided.