idx = len(tag)
				}

				if idx != -1 {
					name = tag[0:idx]
				}

				if name == "" {
					subName := field.Name
					const key = "COMPOSITE"
					if composite, found := settings[key]; found {
						if len(composite) == 0 || composite == key {
							err = fmt.Errorf(
								"The composite tag of %s.%s cannot be empty",
								field.Schema.Name,
								field.Name)
							return
						}

			queryValues[idx] = r[0]
		}

		return clause.Column{Table: table, Name: foreignKeys[0]}, queryValues
	}

	columns := make([]clause.Column, len(foreignKeys))
	for idx, key := range foreignKeys {
		columns[idx] = clause.Column{Table: table, Name: key}
	}

	for idx, r := range foreignValues {
		queryValues[idx] = r
	}

	return columns, queryValues
}

type embeddedNamer struct {
	Table string

		AssertObjEqual(t, user.Account, expect.Account, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID", "Number")

		if user.Account.Number != "" {
			if !user.Account.UserID.Valid {
				t.Errorf("Account's foreign key should be saved")
			} else {
				var account Account
				db(unscoped).First(&account, "user_id = ?", user.ID)
				AssertObjEqual(t, account, user.Account, "ID", "CreatedAt", "UpdatedAt", "DeletedAt", "UserID",

	Name  string
	Token Token `gorm:"foreignKey:UserID"`
}

func (t *TokenOwner) BeforeSave(tx *gorm.DB) error {
	t.Name += "_name"
	return nil
}

type Token struct {
	UserID  int    `gorm:"primary_key"`
	Content string `gorm:"type:varchar(100)"`
}

func (t *Token) BeforeSave(tx *gorm.DB) error {
	t.Content += "_encrypted"
	return nil
}

func TestSaveWithHooks(t *testing.T) {

		t.Fatalf("failed to delete user, got error %v", err)
	}

	for key, value := range map[string]int64{"Account": 1, "Pets": 2, "Toys": 4, "Company": 1, "Manager": 1, "Team": 1, "Languages": 0, "Friends": 0} {
		if count := DB.Unscoped().Model(&user).Association(key).Count(); count != value {
			t.Errorf("user's %v expects: %v, got %v", key, value, count)
		}
	}

					if _, ok := v[key].(driver.Valuer); ok {
						conds = append(conds, clause.Eq{Column: key, Value: v[key]})
					} else if _, ok := v[key].(Valuer); ok {
						conds = append(conds, clause.Eq{Column: key, Value: v[key]})
					} else {
						// optimize reflect value length
						valueLen := reflectValue.Len()
						values := make([]interface{}, valueLen)
						for i := 0; i < valueLen; i++ {

	if err != nil {
		t.Fatalf("failed to parse productNonAutoIncrement struct with composite primary key, got error %v", err)
	}

	if productNonAutoIncrement.PrioritizedPrimaryField != nil {
		t.Fatalf("PrioritizedPrimaryField of non autoincrement composite key should be nil")
	}

	ID         uint   `gorm:"primary_key"`
	Locale     string `gorm:"primary_key"`
	Subject    string
	Body       string
	Tags       []Tag `gorm:"many2many:blog_tags;"`
	SharedTags []Tag `gorm:"many2many:shared_blog_tags;ForeignKey:id;References:id"`
	LocaleTags []Tag `gorm:"many2many:locale_blog_tags;ForeignKey:id,locale;References:id"`
}

type Tag struct {
	ID     uint   `gorm:"primary_key"`
	Locale string `gorm:"primary_key"`

	// unexist company id
	unexistCompanyID := company.ID + 9999999
	user = User{Name: "invalid-user-with-invalid-belongs-to-foreign-key", CompanyID: &unexistCompanyID}
	if err := DB.Create(&user).Error; err == nil {
		tidbSkip(t, "not support the foreign key feature")
		t.Errorf("should have gotten foreign key violation error")
	}
}

func TestBelongsToAssociationForSlice(t *testing.T) {
	users := []User{

* Context, Prepared Statement Mode, DryRun Mode
* Batch Insert, FindInBatches, Find To Map
* SQL Builder, Upsert, Locking, Optimizer/Index/Comment Hints, NamedArg, Search/Update/Create with SQL Expr
* Composite Primary Key
* Auto Migrations
* Logger
* Extendable, flexible plugin API: Database Resolver (Multiple Databases, Read/Write Splitting) / Prometheus…
* Every feature comes with tests
* Developer Friendly

## Getting Started