Sequelize, foreign keys as composite primary key

Question

it is possible to define two foreign keys as a composite primary key of a model?

A user can only be a member of one family, a family can have many members and the fa

Answer 1

In fact, almost I got the solution from documentation:

User = sequelize.define('user', {});
Project = sequelize.define('project', {});
UserProjects = sequelize.define('userProjects', {
    status: DataTypes.STRING
});

User.belongsToMany(Project, { through: UserProjects });
Project.belongsToMany(User, { through: UserProjects });

By default the code above will add projectId and userId to the UserProjects table, and remove any previously defined primary key attribute - the table will be uniquely identified by the combination of the keys of the two tables, and there is no reason to have other PK columns.

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