"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 GetSerializer(name string) (serializer SerializerInterface, ok bool) {
	v, ok := serializerMap.Load(strings.ToLower(name))
	if ok {

				clause.Gt{Column: "age", Value: 18},
				clause.Or(clause.Neq{Column: "name", Value: "jinzhu"}),
			}},
			clause.Where{Exprs: []clause.Expression{
				clause.Or(clause.Gt{Column: "score", Value: 100}, clause.Like{Column: "name", Value: "%linus%"}),
			}},
			clause.GroupBy{Columns: []clause.Column{{Name: "role"}}, Having: []clause.Expression{clause.Eq{"role", "admin"}}},
			clause.Limit{Limit: &limit10, Offset: 20},

		SkipHooks:                db.Statement.SkipHooks,
		DisableNestedTransaction: true,
	})

	db.Statement.Settings.Range(func(k, v interface{}) bool {
		tx.Statement.Settings.Store(k, v)
		return true
	})

	if tx.Statement.FullSaveAssociations {
		tx = tx.Set("gorm:update_track_time", true)
	}

	if len(selects) > 0 {
		tx = tx.Select(selects)

package schema

import (
	"context"
	"fmt"
	"reflect"
	"regexp"
	"strings"

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

var embeddedCacheKey = "embedded_cache_store"

func ParseTagSetting(str string, sep string) map[string]string {
	settings := map[string]string{}
	names := strings.Split(str, sep)

	for i := 0; i < len(names); i++ {
		j := i
		if len(names[j]) > 0 {
			for {

func TestUpdateColumnsSkipsAssociations(t *testing.T) {
	user := *GetUser("update_column_skips_association", Config{})
	DB.Create(&user)

	// Update a single field of the user and verify that the changed address is not stored.
	newAge := uint(100)
	user.Account.Number = "new_account_number"
	db := DB.Model(&user).UpdateColumns(User{Age: newAge})

	if db.RowsAffected != 1 {

	JobInfo                Job                    `gorm:"type:bytes;serializer:gob"`
	CreatedTime            int64                  `gorm:"serializer:unixtime;type:datetime"` // store time in db, use int as field type
	UpdatedTime            *int64                 `gorm:"serializer:unixtime;type:datetime"` // store time in db, use int as field type
	CustomSerializerString string                 `gorm:"serializer:custom"`
	EncryptedString        EncryptedString
}

	tx := db.Session(&gorm.Session{Context: db.Statement.Context, NewDB: true, SkipHooks: db.Statement.SkipHooks, Initialized: true})
	db.Statement.Settings.Range(func(k, v interface{}) bool {
		tx.Statement.Settings.Store(k, v)
		return true
	})

	if err := tx.Statement.Parse(dest); err != nil {
		tx.AddError(err)
		return tx
	}
	tx.Statement.ReflectValue = reflectValue
	tx.Statement.Unscoped = db.Statement.Unscoped

	}

	if len(stmt.scopes) > 0 {
		newStmt.scopes = make([]func(*DB) *DB, len(stmt.scopes))
		copy(newStmt.scopes, stmt.scopes)
	}

	stmt.Settings.Range(func(k, v interface{}) bool {
		newStmt.Settings.Store(k, v)
		return true
	})

	return newStmt
}

// SetColumn set column's value
//
//	stmt.SetColumn("Name", "jinzhu") // Hooks Method
//	stmt.SetColumn("Name", "jinzhu", true) // Callbacks Method

	tx = db.getInstance()
	return tx.Session(&Session{
		Logger: db.Logger.LogMode(logger.Info),
	})
}

// Set store value with key into current db instance's context
func (db *DB) Set(key string, value interface{}) *DB {
	tx := db.getInstance()
	tx.Statement.Settings.Store(key, value)
	return tx
}

// Get get value with key from current db instance's context

		switch kind {
		case reflect.Struct:
			var err error
			field.Creatable = false
			field.Updatable = false
			field.Readable = false

			cacheStore := &sync.Map{}
			cacheStore.Store(embeddedCacheKey, true)
			if field.EmbeddedSchema, err = getOrParse(fieldValue.Interface(), cacheStore, embeddedNamer{Table: schema.Table, Namer: schema.namer}); err != nil {
				schema.err = err
			}