Getting "model is not associated with other Model" in sequelize when using belongsToMany - postgresql

Question

I am using sequelize with postgreSQL. I have two schemas namely User and Location. A User can have many Locations and a Location can have many Users.
My User Schema is as follows
id: {
type: Sequelize.INTEGER,
autoIncrement: true,
primaryKey: true
},
firstName: {
type: Sequelize.STRING,
require: true
},
middleName: {
type: Sequelize.STRING,
require: false
},
lastName: {
type: Sequelize.STRING,
require: true
},
age: {
type: Sequelize.INTEGER,
require: false
},
email_Id: {
type: Sequelize.STRING,
require: true,
unique: true,
validate: {
isEmail: true
}
}
My Location Schema is as follows:
id: {
type: Sequelize.INTEGER,
autoIncrement: true,
primaryKey: true
},
latitude: {
type: Sequelize.DOUBLE,
require: true
},
longitude: {
type: Sequelize.DOUBLE,
require: true
},
locationAddress: {
type: Sequelize.STRING
},
mailBoxNo: {
type: Sequelize.INTEGER
}
I Am using belongsToMany of sequelize and creating a third table name UserLocation where I have mentioned belongsToMany for both User and Location which is as below:
User.belongsToMany(Location, {
through: 'UserLocation'
});
Location.belongsToMany(User, {
through: 'UserLocation'
});
My requirement is to get all the locations for a given user id. My Code is as follows:
var param = req.body;
var options = {};
if (param.where) {
options.where = param.where;
}
options.include = [{
model: User //User Model
}, {
model: Location //Location Model
}];
//Here userLocation refers to UserLocation Schema
userLocation.findAll(options).then(function (response) {
//Some Logic
}).catch(function (err) {
//Error handling
});
While executing the above code, I getting the following error:
User Model is not associated with UserLocation Model.
I am unable to understand why I am getting the following error. Can somebody help me out with this?

Answer 1

You can use this for getting all the locations of a given user;
User
.findOne({
"where": {
"id": param.where
},
"include": [Location]
})
.then(function(user) {
// should get this user
console.log(user);
// should get all locations of this user
console.log(user.Locations);
})
.catch(function(error) {
// error handling
});