Associated belongs with qor admin - go

Question

I have these two structures:
type Collection struct {
gorm.Model
APIKey string
CollectionID string
Name string
Environments []Environment
}
type Environment struct {
gorm.Model
EnvironmentID string
Name string
Provider string
FlightType string
ADT int
CHD int
INF int
}
And the main looks like:
func main() {
adminResource := admin.New(&admin.AdminConfig{DB: model.DB})
adminResource.AddResource(&model.Collection{})
adminResource.AddResource(&model.Environment{})
mux := http.NewServeMux()
adminResource.MountTo("/admin", mux)
if err := http.ListenAndServe(":8000", mux); err != nil {
panic(err)
} else {
fmt.Println("Listening on: 8000")
}
}
The point is that I don´t know if I should to do something else to allow the membership relationship one-to-many between the Collection and the Environemt. The thing is that the form on the admin view looks good, I can add as many environments as I was... but submitting the form only the Collection are saved on the database.

Answer 1

The thing, which is missing is to tell gorm the foreign key of the other model.
In your case we use Has Many (gorm Doc). To define the relationship you have to add a tag to your struct:
type Collection struct {
gorm.Model
APIKey string
CollectionID string
Name string
Environments []Environment `gorm:"foreignkey:EnvironmentID"`
}
type Environment struct {
gorm.Model
EnvironmentID string
Name string
Provider string
FlightType string
ADT int
CHD int
INF int
}
Without defining the foreign key of the other model gorm is not able to match those both models. As the convention for the primary key is ID and your Enviroment does not have that field it is not possible to match something. Be sure to read the documentation about the conventions.

Answer 2

Finally I found the solution.
type Collection struct {
gorm.Model
APIKey string
CollectionID string
Name string
Environments []Environment
}
type Environment struct {
gorm.Model
EnvironmentID string
Name string
Provider string
FlightType string
ADT int
CHD int
INF int
CollectionID int
}
Adding CollectionID int on the Environment struct is enough... so simply :D.
Thanks #apxp