sequelize get column value of referenced table - node.js

Question

I have three tables meetings, rooms and projects
meetings.belongsTo(models.rooms, { foreignKey: "room_id" , targetKey: "id"});
rooms.hasMany(models.meetings, { foreignKey : "id", targetKey : "room_id"});
rooms.belongsTo(models.projects, { foreignKey: "project_id", targetKey: "id"});
projects.hasMany(models.rooms, {foreignKey:"id", targetKey:"project_id"});
id, room_id and project_id are primary key of their respective table.
I want to find value of some column of projects for a particular meeting id. How to write a single query using sequelize nodejs to do this?
below query need to execute using sequelize which is giving correct result
select project_meta from projects p
inner join rooms r on p.id = r.project_id
inner join meetings m on r.id = m.room_id
where m.id = "QBZJ0TK7V6NFSPPWGFNCN";
wrote following
projects.findAll({
include: [{
model: rooms,
include: [{
model: meetings,
where: {
id: "QBZJ0TK7V6NFSPPWGFNCN"
}
}]
}],
attributes: ['project_meta']
}
but it is executing different query and giving unexpected result
is there any problem with association?

Answer 1

You must use SQL joins (sequelize's include)
function myQuery(meetingId) {
let options = {};
options.attributes = ['column1', 'column2', ...]; // The specific arrtibutes you need.
options.include = [
{
model: RoomModel,
include: [
{
model: MeetingModel,
where: {
id: meetingId // The specific meeting id
}
}
]
}
];
ProjectModel.findAll(options);
}