Node JS Sequelize how to count associations data

Question

I'm using Sequelize as ORM in node JS. In have two taboes. Event and Comment. And I make an association like this: Event has many comments. Now i want to retreive all the events and count the number of comments of each event. For now I do this:

 db.Event.findAndCountAll({limit: limit,offset: offset, include: [ db.Comment], order: 'date DESC'}).

and next return

JSON.stringify(result.rows).

How can I retrun the number of the comments with only one query.

Please Help me.

Thanky you in advance

Answer 1

The "result" you will return is the one passed to the success callback function, right?

db.Event.findAndCountAll(...).success(
    function(result) { // this guy
        console.log(result.count) //this logs the count
    }
)

You can use result.count to get the value

Answer 2

sequelize.query('SELECT * FROM event AS e JOIN comment AS c ON (c.event_id = e.id)').success(function(result) {
 console.log("Total count", result.count)
}).error(function(err) {
 console.error(err)
});

Answer 3

You always can perform a raw SQL query.

sequelize.query('SELECT * FROM event AS e JOIN comment AS c ON (c.event_id = e.id)').success(function(result) {

}).error(function(err) {

});