t.Errorf("Failed to batch find, got error %v, rows affected: %v", result.Error, result.RowsAffected)
	}

	var sub3 []User
	if result := DB.Limit(4).Where("name = ?", users[0].Name).FindInBatches(&sub3, 2, func(tx *gorm.DB, batch int) error {
		return nil
	}); result.Error != nil || result.RowsAffected != 4 {
		t.Errorf("Failed to batch find, got error %v, rows affected: %v", result.Error, result.RowsAffected)
	}
}

		t.Errorf("no error should happen when query with embedded struct, but got %v", err)
	} else if egNews.BasePost.Title != "engadget_news" {
		t.Errorf("embedded struct's value should be scanned correctly")
	}

	var egPosts []EngadgetPost
	if err := DB.Order("author_name asc").Find(&egPosts).Error; err != nil {

// GetIndexes return Indexes []gorm.Index and execErr error
func (m Migrator) GetIndexes(dst interface{}) ([]gorm.Index, error) {
	return nil, errors.New("not support")
}

// GetTypeAliases return database type aliases
func (m Migrator) GetTypeAliases(databaseTypeName string) []string {
	return nil
}

// TableType return tableType gorm.TableType and execErr error

			tx.Rollback()
		}
	}()
	if err := tx.Error; err != nil {
		t.Errorf("Failed to start transaction, got error %v\n", err)
	}

	if err := tx.Where("name=?", "zzjin").Delete(&User{}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)
	}

	if err := tx.Create(&User{Name: "zzjin"}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)

	}

	if count := tx.Model(&item).Association("Contents").Count(); count != 3 {
		t.Errorf("expected %d contents, got %d", 3, count)
	}

	var contents []ItemContent
	if err := tx.Find(&contents).Error; err != nil {
		t.Errorf("failed to find contents, got error: %v", err)
	}
	if len(contents) != 3 {
		t.Errorf("expected %d contents, got %d", 3, len(contents))
	}

	// test delete

	user := User{Name: "jinzhu", Account: Account{Number: "1"}}

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	if err := DB.Model(&user).Association("Languages").Replace(Account{Number: "2"}); err == nil {
		t.Error("expected association error to be not nil")
	}

		Relationship: association.Relationship,
		Error:        association.Error,
		Unscope:      true,
	}
}

func (association *Association) Find(out interface{}, conds ...interface{}) error {
	if association.Error == nil {
		association.Error = association.buildCondition().Find(out, conds...).Error
	}
	return association.Error
}

func (association *Association) Append(values ...interface{}) error {
	if association.Error == nil {

	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)
	updatedAt1 := animal.UpdatedAt

	DB.Save(&animal).Update("name", "Francis")
	if updatedAt1.Format(time.RFC3339Nano) == animal.UpdatedAt.Format(time.RFC3339Nano) {
		t.Errorf("UpdatedAt should be updated")
	}

	var animals []Animal

	if err := DB.AutoMigrate(&Harumph{}); err != nil {
		t.Fatalf("Failed to migrate with default value, got error: %v", err)
	}

	harumph := Harumph{Email: "******@****.***"}
	if err := DB.Create(&harumph).Error; err != nil {
		t.Fatalf("Failed to create data with default value, got error: %v", err)

import (
	"fmt"
	"reflect"
	"strings"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
	"gorm.io/gorm/utils"
)

func Query(db *gorm.DB) {
	if db.Error == nil {
		BuildQuerySQL(db)

		if !db.DryRun && db.Error == nil {
			rows, err := db.Statement.ConnPool.QueryContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
			if err != nil {
				db.AddError(err)
				return
			}