Sequelize find based on association

Question

How would I use Sequelize to find all people where a column in the relation satisfies a condition?

An example would be to find all Books whose author\'s last name is

Answer 1

In the newest version of Sequilize (5.9.0) the method proposed by @c.hill does not work.

Now you need to do the following:

return Book.findAll({
    where: {
        '$Authors.lastName$': 'Testerson'
    },
    include: [
        {model: Author, as: Author.tableName}
    ]
});