Sequelize hasMany association issue - mysql

Question

In my application a user can have several module which is stored in the user_has_module table. This means that for each user_has_module row, I want to include module where the module_id matches.
module
Module = sequelize.define('module', {
academy_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
module_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
module_module_type_id: DataTypes.INTEGER,
sort_number: DataTypes.INTEGER,
score_to_pass: DataTypes.INTEGER
}, {
freezeTableName: true
})
user_has_module
User_has_module = sequelize.define('user_has_module', {
user_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
module_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
academy_team_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
academy_id: {
type: DataTypes.INTEGER,
primaryKey: true
},
sort_number: DataTypes.INTEGER,
is_complete: DataTypes.INTEGER,
score_to_pass: DataTypes.INTEGER,
is_open: DataTypes.INTEGER,
deadline: DataTypes.DATE
}, {
freezeTableName: true
})
My relation
User_has_module.belongsTo(Module, {foreignKey: 'module_id'});
Now what I want to do is join them on module.module_id = user_has_module.module_id.
My problem is that module has, as you can see, two primary key, and when sequelize joins these two tables, it chooses academy_id as its primary key.
My question is, is there a way to tell Sequelize that in this relation it has to choose the primary key module_id from module?

Answer 1

I think you don't need a model called User_has_module.
I assume you have one model called User and one model call Module.
So you should have designed something like this:
var User = sequelize.define("User", {
name: DataTypes.STRING
}, {
classMethods: {
associate: function(models) {
User.hasMany(models.Module);
}
}
});
And for your Module:
var Module = sequelize.define("Module", {
name: DataTypes.STRING
}, {
classMethods: {
associate: function(models) {
Module.belongsToMany(models.User);
}
}
});
To get a User with its Modules you can do this:
models.User.findAll({ include: [models.Module]}).then(function(users){
console.log(users);
});
Hope I got your question right and it helps.
Cheers