CODEWITHSUNDEEP
gogo-gorm
aroooo
aroooo

Reputation: 5056

Go-Gorm: will the foreignkey be auto-populated when I set an object?

In the documentation we have this example:

type User struct {
  gorm.Model
  Name string
}

// `Profile` belongs to `User`, `UserID` is the foreign key
type Profile struct {
  gorm.Model
  UserID int
  User   User
  Name   string
}

If I do something like profile.User = &user, will that automatically populate the UserID field? Is it recommended to set both? Like: 

profile.User = &user
profile.UserID = &user.ID

Or is that pointless? Furthermore, could I alternatively just set the UserID field and ignore the User field entirely?

Upvotes: 1

Views: 330

Answers (1)

ifnotak
ifnotak

Reputation: 4662

If I do something like profile.User = &user, will that automatically populate the UserID field?

Just writing profile.User = &user will not populate the UserID field. Once you add the profile to the database. gorm will automatically populate the foreign key.

Is it recommended to set both?

Nope. In fact, you should not set the UserID yourself. This answers the last question as well.

Upvotes: 2

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