Join two tables via a third table in sequelize - node.js

Question

I'm using nodejs and Sequelize
I have two models like
user-plan.model.js
class UserPlan extends Sequelize.Model {
}
UserPlan.init({
id: {
type: Sequelize.INTEGER,
allowNull: false,
primaryKey: true
},
user_id: {
type: Sequelize.INTEGER,
allowNull: false
},
plan_id: {
type: Sequelize.INTEGER,
allowNull: false
},
expire: {
type: Sequelize.DATE,
allowNull: true
},
active: {
type: Sequelize.BOOLEAN,
allowNull: true
}
}, {
sequelize,
modelName: 'user_plan',
tableName: 'plans_userplan'
});
quota.model.js
class Quota extends Model {
}
Quota.init({
id: {
type: Sequelize.INTEGER,
allowNull: false,
primaryKey: true
},
codename: {
type: Sequelize.STRING,
allowNull: false
}
}, {
sequelize,
modelName: 'quota',
tableName: 'plans_quota'
});
These two tables are joined through a third table
plan-quota.model.js
class PlanQuota extends Model {
}
PlanQuota.init({
id: {
type: Sequelize.INTEGER,
primaryKey: true,
allowNull: false
},
value: {
type: Sequelize.INTEGER,
allowNull: false,
},
plan_id: {
type: Sequelize.STRING,
allowNull: false
},
quota_id: {
type: Sequelize.STRING,
allowNull: false
}
}, {
sequelize,
modelName: 'plan_quota',
tableName: 'plans_planquota'
});
The PlanQuota table has link to the UserPlan using plan_id and Quota table using quota_id.
User.findOne({
where: {
'id': user_id
},
include: [
{
model: UserPlan,
include: [
{
model: PlanQuota
}
]
}
]
}).then(d => {
console.log('d: ', d);
});
The UserPlan is associated with User model, and I'm able to include the UserPlan using User.
But how Can I include PlanQuota and the Quota using the join?

Answer 1

I think you need to "include" the associated model, not the junction table:
User.findOne({
where: {
'id': user_id
},
include: [
{
model: UserPlan,
include: [
{
model: Qouta//This is the change
}
]
}
]
}).then(d => {
console.log('d: ', d);
});
Do you have your associations setup? like:
UserPlan.belongsToMany(Qouta, { through: PlanQuota });
Qouta.belongsToMany(UserPlan, { through: PlanQuota });