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// Copyright 2016 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package builder
import (
"bytes"
"errors"
"fmt"
)
func (b *Builder) insertWriteTo(w Writer) error {
if len(b.tableName) <= 0 {
return errors.New("no table indicated")
}
if len(b.inserts) <= 0 {
return errors.New("no column to be update")
}
if _, err := fmt.Fprintf(w, "INSERT INTO %s (", b.tableName); err != nil {
return err
}
var args = make([]interface{}, 0)
var bs []byte
var valBuffer = bytes.NewBuffer(bs)
var i = 0
for col, value := range b.inserts {
fmt.Fprint(w, col)
if e, ok := value.(expr); ok {
fmt.Fprint(valBuffer, e.sql)
args = append(args, e.args...)
} else {
fmt.Fprint(valBuffer, "?")
args = append(args, value)
}
if i != len(b.inserts)-1 {
if _, err := fmt.Fprint(w, ","); err != nil {
return err
}
if _, err := fmt.Fprint(valBuffer, ","); err != nil {
return err
}
}
i = i + 1
}
if _, err := fmt.Fprint(w, ") Values ("); err != nil {
return err
}
if _, err := w.Write(valBuffer.Bytes()); err != nil {
return err
}
if _, err := fmt.Fprint(w, ")"); err != nil {
return err
}
w.Append(args...)
return nil
}
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