return m.RunWithValue(value, func(stmt *gorm.Statement) error {
		// We're currently only receiving boolean values on `Unique` tag,
		// so the UniqueConstraint name is fixed
		constraint := m.DB.NamingStrategy.UniqueName(stmt.Table, field.DBName)
		if unique && !field.Unique {
			return m.DB.Migrator().DropConstraint(value, constraint)
		}
		if !unique && field.Unique {
			return m.DB.Migrator().CreateConstraint(value, constraint)