Conventions

type User struct {
 ID string // field named `ID` will be used as a primary field by default
 Name string
}

// Set field `UUID` as primary field
type Animal struct {
 ID int64
 UUID string `gorm:"primaryKey"`
 Name string
 Age int64
}

type Tabler interface {
    TableName() string
}

// TableName overrides the table name used by User to `profiles`
func (User) TableName() string {
  return "profiles"
}

// Create table `deleted_users` with struct User's fields
db.Table("deleted_users").AutoMigrate(&User{})

// Query data from another table
var deletedUsers []User
db.Table("deleted_users").Find(&deletedUsers)
// SELECT * FROM deleted_users;

db.Table("deleted_users").Where("name = ?", "jinzhu").Delete(&User{})
// DELETE FROM deleted_users WHERE name = 'jinzhu';

type User struct {
 ID uint // column name is `id`
 Name string // column name is `name`
 Birthday time.Time // column name is `birthday`
 CreatedAt time.Time // column name is `created_at`
}

type Animal struct {
 AnimalID int64 `gorm:"column:beast_id"` // set name to `beast_id`
 Birthday time.Time `gorm:"column:day_of_the_beast"` // set name to `day_of_the_beast`
 Age int64 `gorm:"column:age_of_the_beast"` // set name to `age_of_the_beast`
}

db.Create(&user) // set `CreatedAt` to current time

user2 := User{Name: "jinzhu", CreatedAt: time.Now()}
db.Create(&user2) // user2's `CreatedAt` won't be changed

// To change its value, you could use `Update`
db.Model(&user).Update("CreatedAt", time.Now())

type User struct {
  CreatedAt time.Time `gorm:"autoCreateTime:false"`
}

db.Save(&user) // set `UpdatedAt` to current time

db.Model(&user).Update("name", "jinzhu") // will set `UpdatedAt` to current time

db.Model(&user).UpdateColumn("name", "jinzhu") // `UpdatedAt` won't be changed

user2 := User{Name: "jinzhu", UpdatedAt: time.Now()}
db.Create(&user2) // user2's `UpdatedAt` won't be changed when creating

user3 := User{Name: "jinzhu", UpdatedAt: time.Now()}
db.Save(&user3) // user3's `UpdatedAt` will change to current time when updating

type User struct {
  UpdatedAt time.Time `gorm:"autoUpdateTime:false"`
}