How do I manage relationships in Flask ORM?

How do I manage relationships in Flask ORM?

In Flask ORM, you can manage relationships using SQLAlchemy. You define relationships in your models using the relationship() function.

Can you give me an example of a one-to-many relationship?

Sure! For a one-to-many relationship, you might have a User model and a Post model. A user can have multiple posts, so in the User model, you would define it like this: posts = relationship('Post', backref='author').

What about many-to-many relationships?

For many-to-many relationships, you need an association table. For example, if you have a Student and Course model, you would create a StudentCourse association table to link them.

How do I query these relationships?

You can query relationships using the session object. For example, to get all posts by a user, you would do user.posts.