sequelize, Statement(where) in statement(where)

Question

I'm trying for 2 hours to resolve a little problem which is not one. I'm on an generated yeoman Angular-fullstack App.

I want to write this code with sequelize:

SELECT * 
FROM demand 
WHERE city_id NOT IN (
SELECT city_id
FROM demand
WHERE user_id=req.params.user_id)

I have yet the following code but that doesn't work. I get only []

export function getCity(req, res) {
  return Demand.findAll({
    where: {
      city_id:{ $notIn: Demand.findAll({
        attributes: ['city_id'],
        where: {
          user_id: req.params.user_id,
        }
      })}
    }
  })
  .then(handleEntityNotFound(res))
  .then(respondWithResult(res))
  .catch(handleError(res));
}

Have you a clue? Thank you.

Answer 1

I have not found a nice solution: I have finally wrote with query.

export function showDemandArtistNoUser(req, res) {
  return db.sequelize.query('SELECT * FROM demands WHERE city_id NOT IN (SELECT city_id FROM demands WHERE user_id='+req.params.user_id+')', { type: db.sequelize.QueryTypes.SELECT })
  .then(handleEntityNotFound(res))
  .then(respondWithResult(res))
  .catch(handleError(res));
}

And with my angular-fullstack, i have to add on my page:

 import db from '../../sqldb';