package migrator

import (
	"database/sql"
	"reflect"
)

// ColumnType column type implements ColumnType interface
type ColumnType struct {
	SQLColumnType      *sql.ColumnType
	NameValue          sql.NullString
	DataTypeValue      sql.NullString
	ColumnTypeValue    sql.NullString
	PrimaryKeyValue    sql.NullBool
	UniqueValue        sql.NullBool
	AutoIncrementValue sql.NullBool
	LengthValue        sql.NullInt64

	Age        *time.Time
	unexported string // unexported value
	CreatedAt  time.Time
	UpdatedAt  time.Time
}

func TestNonStdPrimaryKeyAndDefaultValues(t *testing.T) {
	DB.Migrator().DropTable(&Animal{})
	if err := DB.AutoMigrate(&Animal{}); err != nil {
		t.Fatalf("no error should happen when migrate but got %v", err)
	}

	animal := Animal{Name: "Ferdinand"}
	DB.Save(&animal)

	"testing"

	"gorm.io/gorm"
	. "gorm.io/gorm/utils/tests"
)

func TestNamedArg(t *testing.T) {
	type NamedUser struct {
		gorm.Model
		Name1 string
		Name2 string
		Name3 string
	}

	DB.Migrator().DropTable(&NamedUser{})
	DB.AutoMigrate(&NamedUser{})

	namedUser := NamedUser{Name1: "jinzhu1", Name2: "jinzhu2", Name3: "jinzhu3"}
	DB.Create(&namedUser)

	var result NamedUser

		}

		for _, pet := range pets {
			CheckPet(t, *pet, *pet)
		}
	})
}

func TestCreateEmptyStruct(t *testing.T) {
	type EmptyStruct struct {
		ID uint
	}
	DB.Migrator().DropTable(&EmptyStruct{})

	if err := DB.AutoMigrate(&EmptyStruct{}); err != nil {
		t.Errorf("no error should happen when auto migrate, but got %v", err)
	}

	ID   uint
	Name string
}

type PersonAddress struct {
	PersonID  int
	AddressID int
	CreatedAt time.Time
	DeletedAt gorm.DeletedAt
}

func TestOverrideJoinTable(t *testing.T) {
	DB.Migrator().DropTable(&Person{}, &Address{}, &PersonAddress{})

	if err := DB.SetupJoinTable(&Person{}, "Addresses", &PersonAddress{}); err != nil {
		t.Fatalf("Failed to setup join table for person, got error %v", err)
	}

* Ensure to run enough warmup iterations to get the benchmark into a stable state. If you are unsure, don't change the defaults.
* Avoid CPU migrations by pinning your benchmarks to specific CPU cores. On Linux you can use `taskset`.
* Fix the CPU frequency to avoid Turbo Boost from kicking in and skewing your results. On Linux you can use `cpufreq-set` and the

While there are competing ways to represent absence (`Optional`, "Null Object" pattern, method overloads),
it is unlikely that we'll be able to remove `null` entirely.

After migrating to Java 8, we can use pluggable type checkers to ensure that our annotations are consistent, 
and there are no missing null checks.

## Decision

Use "NullAway" in JSpecify mode to check for null-related errors in Java code.

	PreferredToy Toy `gorm:"polymorphic:Owner;polymorphicValue:hamster_preferred"`
	OtherToy     Toy `gorm:"polymorphic:Owner;polymorphicValue:hamster_other"`
}

func TestNamedPolymorphic(t *testing.T) {
	DB.Migrator().DropTable(&Hamster{})
	DB.AutoMigrate(&Hamster{})

	hamster := Hamster{Name: "Mr. Hammond", PreferredToy: Toy{Name: "bike"}, OtherToy: Toy{Name: "treadmill"}}
	DB.Save(&hamster)

	hamster2 := Hamster{}

Aquí creamos las tablas en un evento de inicio de la aplicación.

Para producción probablemente usarías un script de migración que se ejecuta antes de iniciar tu aplicación. 🤓

/// tip | Consejo

SQLModel tendrá utilidades de migración envolviendo Alembic, pero por ahora, puedes usar [Alembic](https://alembic.sqlalchemy.org/en/latest/) directamente.

///

### Crear un Hero { #create-a-hero }

	}

	tx := DB.Session(&gorm.Session{})
	tx.Config.DisableForeignKeyConstraintWhenMigrating = true
	AssertEqual(t, DB.Config.DisableForeignKeyConstraintWhenMigrating, false)

	tx.Migrator().DropTable(&BelongsToUser{}, &Org{})
	tx.AutoMigrate(&BelongsToUser{}, &Org{})

	user := &BelongsToUser{
		Org: Org{
			ID: "BelongsToUser_Org_1",
		},
	}
	err := DB.Create(&user).Error