Sequelize JS：包含一对多关系

Question

hi i got a problem i'd like to express below: lets say i have 2 models defined: GameMap and Player,

GameMap.hasMany(Player, { foreignKey: 'map_id' });

then i would like to perform a query where each Player contains a GameMap object in its query,

Player.findAll(){
   include: {
    // how to map Player.map_id onto a GameMap object?
  }
}

i can do it the other way so that GameMap query contains its Players, but id want the opposite of it, couldnt solve this problem using documentation, thx

Answer 1

GameMap.hasMany(Player, { foreignKey: 'map_id'});
Player.belongsTo(GameMap, { foreignKey: 'map_id'});

Both models need to be associated with themselves through the same foreign_key. Now inside Player query I can access its GameMap object.