package Models import ( "gorm.io/gorm" ) // Prevent updating the email if it has not changed // This stops a unique constraint error func (u *User) BeforeUpdate(tx *gorm.DB) (err error) { if !tx.Statement.Changed("Username") { tx.Statement.Omit("Username") } return nil } type User struct { Base Username string `gorm:"not null;unique" json:"username"` Password string `gorm:"not null" json:"password"` ConfirmPassword string `gorm:"-" json:"confirm_password"` AsymmetricPrivateKey string `gorm:"not null" json:"asymmetric_private_key"` // Stored encrypted AsymmetricPublicKey string `gorm:"not null" json:"asymmetric_public_key"` FriendID string `gorm:"not null" json:"public_user_id"` // Stored encrypted FriendSymmetricKey string `gorm:"not null" json:"symmetric_key"` // Stored encrypted }