Applying associations to Avalon Airlines
Luckily, the models for the project are simple and won’t require the amount of effort as defining a Super Many-to-Many relationship. Within these next several model updates, this book will demonstrate what to modify only for the class model block (the rest of the contents within each file should remain the same).
Starting in alphabetical order, we will begin modifying the models/airplane.js file’s class block by adding a relationship to FlightSchedule:
class Airplane extends Model {
static associate(models) {
this.FlightSchedules =
this.hasMany(models.FlightSchedule);
}
};
Next, we can edit the models/boardingticket.js file’s class block and add a Customer and FlightSchedule relationship:
class BoardingTicket extends Model {
static associate(models) {
this.Customer = this.belongsTo(models['Customer']);
this.FlightSchedule...