Creating Trainings directly

[wlopez-enkoding]

Hey guys ! I was wondering why the Training struct is public... I mean, what happen if someone creates a Trining bypassing all required validations that exist in NewTraining ?

Thank you !

wild-workouts-go-ddd-example/internal/trainings/domain/training/training.go

Line 10 in c727325

type Training struct {

[m110]

Hey @wlopez-enkoding!

The Training has to be public so other packages are able to reference it. It's not used directly, but converted into other specific types, like here:

wild-workouts-go-ddd-example/internal/trainings/adapters/trainings_firestore_repository.go

Line 117 in c727325

func (r TrainingsFirestoreRepository) marshalTraining(tr *training.Training) TrainingModel {

You can create a Training outside of the pacakge, but since all its fields are unexported, you won't be able to fill them. So in worst-case scenario, you'll create an empty training.

To make sure the passed value is valid, you can keep a check like if training == Training{} or have a dedicated training.IsZero() method.