When working with databases in Go using GORM, handling NULL values is an important aspect to ensure that your application behaves correctly. GORM provides a few ways to manage NULL values in your models when using structs. Below is an explanation of how to handle NULL values, along with an example.
type User struct {
ID uint `gorm:"primaryKey"`
Name string `gorm:"not null"`
Email *string `gorm:"type:varchar(100);uniqueIndex"` // Using pointer to handle NULL
Age *int `gorm:"default:NULL"` // Pointer to handle NULL
}
func CreateUser(db *gorm.DB, name string, email *string, age *int) {
user := User{Name: name, Email: email, Age: age}
db.Create(&user)
}
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