t.Fatalf("failed to create data from slice of map, got error: %v", err)
	}

	var result2 User
	if err := DB.Where("name = ?", "create_from_map_2").First(&result2).Error; err != nil || result2.Age != 19 {
		t.Fatalf("failed to query data after create from slice of map, got error %v", err)
	}

	var result3 User

	defer cancel()
	txCtx := tx.WithContext(ctx)

	user := *GetUser("prepared_stmt", Config{})

	txCtx.Create(&user)

	var result1 User
	if err := txCtx.Find(&result1, user.ID).Error; err != nil {
		t.Fatalf("no error should happen but got %v", err)
	}

	time.Sleep(time.Second)

	var result2 User
	if err := tx.Find(&result2, user.ID).Error; err != nil {
		t.Fatalf("no error should happen but got %v", err)
	}

								joinFields[idx] = relFields
								continue
							}
						}
						var val interface{}
						values[idx] = &val
					} else {
						var val interface{}
						values[idx] = &val
					}
				}
			}
		}

		switch reflectValue.Kind() {
		case reflect.Slice, reflect.Array:
			var (
				elem        reflect.Value
				isArrayKind = reflectValue.Kind() == reflect.Array
			)

package schema

import (
	"bytes"
	"context"
	"database/sql"
	"database/sql/driver"
	"encoding/gob"
	"encoding/json"
	"fmt"
	"reflect"
	"strings"
	"sync"
	"time"
)

var serializerMap = sync.Map{}

// RegisterSerializer register serializer
func RegisterSerializer(name string, serializer SerializerInterface) {
	serializerMap.Store(strings.ToLower(name), serializer)
}

// GetSerializer get serializer

}

func (cs *callbacks) Raw() *processor {
	return cs.processors["raw"]
}

func (p *processor) Execute(db *DB) *DB {
	// call scopes
	for len(db.Statement.scopes) > 0 {
		db = db.executeScopes()
	}

	var (
		curTime           = time.Now()
		stmt              = db.Statement
		resetBuildClauses bool
	)

	if len(stmt.BuildClauses) == 0 {
		stmt.BuildClauses = p.Clauses
		resetBuildClauses = true
	}

package schema

import (
	"regexp"
	"strings"

	"gorm.io/gorm/clause"
)

// reg match english letters and midline
var regEnLetterAndMidline = regexp.MustCompile(`^[\w-]+$`)

type CheckConstraint struct {
	Name       string
	Constraint string // length(phone) >= 10
	*Field
}

func (chk *CheckConstraint) GetName() string { return chk.Name }

func (chk *CheckConstraint) Build() (sql string, vars []interface{}) {

		if !unicode.IsPrint(r) {
			return false
		}
	}
	return true
}

// A list of Go types that should be converted to SQL primitives
var convertibleTypes = []reflect.Type{reflect.TypeOf(time.Time{}), reflect.TypeOf(false), reflect.TypeOf([]byte{})}

// RegEx matches only numeric values
var numericPlaceholderRe = regexp.MustCompile(`\$\d+\$`)

func isNumeric(k reflect.Kind) bool {
	switch k {

						{PrimaryKey: "ID", PrimarySchema: "Country", ForeignKey: "CountryID", ForeignSchema: "Org"},
					},
				},
			},
		},
	})
}

func TestVariableRelation(t *testing.T) {
	var result struct {
		User
	}

	checkStructRelation(t, &result, Relation{
		Name: "Account", Type: schema.HasOne, Schema: "", FieldSchema: "Account",
		References: []Reference{

// with a possible trailing non-digit character (\D?).

// For example, values that can pass this regular expression are:
// - "123"
// - "abc456"
// -"%$#@789"
var regFullDataType = regexp.MustCompile(`\D*(\d+)\D?`)

// TODO:? Create const vars for raw sql queries ?

var _ gorm.Migrator = (*Migrator)(nil)

// Migrator m struct
type Migrator struct {
	Config
}

// Config schema config
type Config struct {

		db, err := gorm.Open(nil, nil)
		if err != nil {
			t.Fatal(err)
		}
		callbacks := db.Callback()

		for _, c := range data.callbacks {
			var v interface{} = callbacks.Create()
			callMethod := func(s interface{}, name string, args ...interface{}) {
				var argValues []reflect.Value
				for _, arg := range args {
					argValues = append(argValues, reflect.ValueOf(arg))
				}