Conds    []interface{}
	On       *clause.Where
	Selects  []string
	Omits    []string
	JoinType clause.JoinType
}

// StatementModifier statement modifier interface
type StatementModifier interface {
	ModifyStatement(*Statement)
}

// WriteString write string
func (stmt *Statement) WriteString(str string) (int, error) {
	return stmt.SQL.WriteString(str)
}

// WriteByte write byte

	var whereConds []interface{}

	for _, cond := range conds {
		if c, ok := cond.(clause.Interface); ok {
			tx.Statement.AddClause(c)
		} else if optimizer, ok := cond.(StatementModifier); ok {
			optimizer.ModifyStatement(tx.Statement)
		} else {
			whereConds = append(whereConds, cond)
		}
	}

	if len(whereConds) > 0 {
		tx.Statement.AddClause(clause.Where{Exprs: tx.Statement.BuildCondition(whereConds[0], whereConds[1:]...)})