xorm/scan.go

79 lines
1.8 KiB
Go

// Copyright 2021 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 xorm
import (
"database/sql"
"time"
"xorm.io/xorm/convert"
"xorm.io/xorm/core"
)
func (session *Session) scan(rows *core.Rows, types []*sql.ColumnType, v ...interface{}) error {
var v2 = make([]interface{}, 0, len(v))
var turnBackIdxes = make([]int, 0, 5)
for i, vv := range v {
switch vv.(type) {
case *time.Time:
v2 = append(v2, &sql.NullString{})
turnBackIdxes = append(turnBackIdxes, i)
case *sql.NullTime:
v2 = append(v2, &sql.NullString{})
turnBackIdxes = append(turnBackIdxes, i)
default:
v2 = append(v2, v[i])
}
}
if err := rows.Scan(v2...); err != nil {
return err
}
for _, i := range turnBackIdxes {
switch t := v[i].(type) {
case *time.Time:
var s = *(v2[i].(*sql.NullString))
if !s.Valid {
break
}
dt, err := convert.String2Time(s.String, session.engine.DatabaseTZ, session.engine.TZLocation)
if err != nil {
return err
}
*t = *dt
case *sql.NullTime:
var s = *(v2[i].(*sql.NullString))
if !s.Valid {
break
}
dt, err := convert.String2Time(s.String, session.engine.DatabaseTZ, session.engine.TZLocation)
if err != nil {
return err
}
t.Time = *dt
t.Valid = true
}
}
return nil
}
func (engine *Engine) row2mapStr(rows *core.Rows, types []*sql.ColumnType, fields []string) (map[string]string, error) {
var scanResults = make([]interface{}, len(fields))
for i := 0; i < len(fields); i++ {
var s sql.NullString
scanResults[i] = &s
}
if err := rows.Scan(scanResults...); err != nil {
return nil, err
}
result := make(map[string]string, len(fields))
for ii, key := range fields {
s := scanResults[ii].(*sql.NullString)
result[key] = s.String
}
return result, nil
}