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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 xorm
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"github.com/go-xorm/core"
)
// Insert insert one or more beans
func (session *Session) Insert(beans ...interface{}) (int64, error) {
var affected int64
var err error
if session.isAutoClose {
defer session.Close()
}
for _, bean := range beans {
sliceValue := reflect.Indirect(reflect.ValueOf(bean))
if sliceValue.Kind() == reflect.Slice {
size := sliceValue.Len()
if size > 0 {
if session.engine.SupportInsertMany() {
cnt, err := session.innerInsertMulti(bean)
if err != nil {
return affected, err
}
affected += cnt
} else {
for i := 0; i < size; i++ {
cnt, err := session.innerInsert(sliceValue.Index(i).Interface())
if err != nil {
return affected, err
}
affected += cnt
}
}
}
} else {
cnt, err := session.innerInsert(bean)
if err != nil {
return affected, err
}
affected += cnt
}
}
return affected, err
}
func (session *Session) innerInsertMulti(rowsSlicePtr interface{}) (int64, error) {
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
if sliceValue.Kind() != reflect.Slice {
return 0, errors.New("needs a pointer to a slice")
}
if sliceValue.Len() <= 0 {
return 0, errors.New("could not insert a empty slice")
}
if err := session.statement.setRefBean(sliceValue.Index(0).Interface()); err != nil {
return 0, err
}
tableName := session.statement.TableName()
if len(tableName) <= 0 {
return 0, ErrTableNotFound
}
table := session.statement.RefTable
size := sliceValue.Len()
var colNames []string
var colMultiPlaces []string
var args []interface{}
var cols []*core.Column
for i := 0; i < size; i++ {
v := sliceValue.Index(i)
vv := reflect.Indirect(v)
elemValue := v.Interface()
var colPlaces []string
// handle BeforeInsertProcessor
// !nashtsai! does user expect it's same slice to passed closure when using Before()/After() when insert multi??
for _, closure := range session.beforeClosures {
closure(elemValue)
}
if processor, ok := interface{}(elemValue).(BeforeInsertProcessor); ok {
processor.BeforeInsert()
}
// --
if i == 0 {
for _, col := range table.Columns() {
ptrFieldValue, err := col.ValueOfV(&vv)
if err != nil {
return 0, err
}
fieldValue := *ptrFieldValue
if col.IsAutoIncrement && isZero(fieldValue.Interface()) {
continue
}
if col.MapType == core.ONLYFROMDB {
continue
}
if col.IsDeleted {
continue
}
if session.statement.omitColumnMap.contain(col.Name) {
continue
}
if len(session.statement.columnMap) > 0 && !session.statement.columnMap.contain(col.Name) {
continue
}
if (col.IsCreated || col.IsUpdated) && session.statement.UseAutoTime {
val, t := session.engine.nowTime(col)
args = append(args, val)
var colName = col.Name
session.afterClosures = append(session.afterClosures, func(bean interface{}) {
col := table.GetColumn(colName)
setColumnTime(bean, col, t)
})
} else if col.IsVersion && session.statement.checkVersion {
args = append(args, 1)
var colName = col.Name
session.afterClosures = append(session.afterClosures, func(bean interface{}) {
col := table.GetColumn(colName)
setColumnInt(bean, col, 1)
})
} else {
arg, err := session.value2Interface(col, fieldValue)
if err != nil {
return 0, err
}
args = append(args, arg)
}
colNames = append(colNames, col.Name)
cols = append(cols, col)
colPlaces = append(colPlaces, "?")
}
} else {
for _, col := range cols {
ptrFieldValue, err := col.ValueOfV(&vv)
if err != nil {
return 0, err
}
fieldValue := *ptrFieldValue
if col.IsAutoIncrement && isZero(fieldValue.Interface()) {
continue
}
if col.MapType == core.ONLYFROMDB {
continue
}
if col.IsDeleted {
continue
}
if session.statement.omitColumnMap.contain(col.Name) {
continue
}
if len(session.statement.columnMap) > 0 && !session.statement.columnMap.contain(col.Name) {
continue
}
if (col.IsCreated || col.IsUpdated) && session.statement.UseAutoTime {
val, t := session.engine.nowTime(col)
args = append(args, val)
var colName = col.Name
session.afterClosures = append(session.afterClosures, func(bean interface{}) {
col := table.GetColumn(colName)
setColumnTime(bean, col, t)
})
} else if col.IsVersion && session.statement.checkVersion {
args = append(args, 1)
var colName = col.Name
session.afterClosures = append(session.afterClosures, func(bean interface{}) {
col := table.GetColumn(colName)
setColumnInt(bean, col, 1)
})
} else {
arg, err := session.value2Interface(col, fieldValue)
if err != nil {
return 0, err
}
args = append(args, arg)
}
colPlaces = append(colPlaces, "?")
}
}
colMultiPlaces = append(colMultiPlaces, strings.Join(colPlaces, ", "))
}
cleanupProcessorsClosures(&session.beforeClosures)
var sql string
if session.engine.dialect.DBType() == core.ORACLE {
temp := fmt.Sprintf(") INTO %s (%v%v%v) VALUES (",
session.engine.Quote(tableName),
session.engine.QuoteStr(),
strings.Join(colNames, session.engine.QuoteStr()+", "+session.engine.QuoteStr()),
session.engine.QuoteStr())
sql = fmt.Sprintf("INSERT ALL INTO %s (%v%v%v) VALUES (%v) SELECT 1 FROM DUAL",
session.engine.Quote(tableName),
session.engine.QuoteStr(),
strings.Join(colNames, session.engine.QuoteStr()+", "+session.engine.QuoteStr()),
session.engine.QuoteStr(),
strings.Join(colMultiPlaces, temp))
} else {
sql = fmt.Sprintf("INSERT INTO %s (%v%v%v) VALUES (%v)",
session.engine.Quote(tableName),
session.engine.QuoteStr(),
strings.Join(colNames, session.engine.QuoteStr()+", "+session.engine.QuoteStr()),
session.engine.QuoteStr(),
strings.Join(colMultiPlaces, "),("))
}
res, err := session.exec(sql, args...)
if err != nil {
return 0, err
}
session.cacheInsert(tableName)
lenAfterClosures := len(session.afterClosures)
for i := 0; i < size; i++ {
elemValue := reflect.Indirect(sliceValue.Index(i)).Addr().Interface()
// handle AfterInsertProcessor
if session.isAutoCommit {
// !nashtsai! does user expect it's same slice to passed closure when using Before()/After() when insert multi??
for _, closure := range session.afterClosures {
closure(elemValue)
}
if processor, ok := interface{}(elemValue).(AfterInsertProcessor); ok {
processor.AfterInsert()
}
} else {
if lenAfterClosures > 0 {
if value, has := session.afterInsertBeans[elemValue]; has && value != nil {
*value = append(*value, session.afterClosures...)
} else {
afterClosures := make([]func(interface{}), lenAfterClosures)
copy(afterClosures, session.afterClosures)
session.afterInsertBeans[elemValue] = &afterClosures
}
} else {
if _, ok := interface{}(elemValue).(AfterInsertProcessor); ok {
session.afterInsertBeans[elemValue] = nil
}
}
}
}
cleanupProcessorsClosures(&session.afterClosures)
return res.RowsAffected()
}
// InsertMulti insert multiple records
func (session *Session) InsertMulti(rowsSlicePtr interface{}) (int64, error) {
if session.isAutoClose {
defer session.Close()
}
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
if sliceValue.Kind() != reflect.Slice {
return 0, ErrParamsType
}
if sliceValue.Len() <= 0 {
return 0, nil
}
return session.innerInsertMulti(rowsSlicePtr)
}
func (session *Session) innerInsert(bean interface{}) (int64, error) {
if err := session.statement.setRefBean(bean); err != nil {
return 0, err
}
if len(session.statement.TableName()) <= 0 {
return 0, ErrTableNotFound
}
table := session.statement.RefTable
// handle BeforeInsertProcessor
for _, closure := range session.beforeClosures {
closure(bean)
}
cleanupProcessorsClosures(&session.beforeClosures) // cleanup after used
if processor, ok := interface{}(bean).(BeforeInsertProcessor); ok {
processor.BeforeInsert()
}
colNames, args, err := session.genInsertColumns(bean)
if err != nil {
return 0, err
}
// insert expr columns, override if exists
exprColumns := session.statement.getExpr()
exprColVals := make([]string, 0, len(exprColumns))
for _, v := range exprColumns {
// remove the expr columns
for i, colName := range colNames {
if colName == v.colName {
colNames = append(colNames[:i], colNames[i+1:]...)
args = append(args[:i], args[i+1:]...)
}
}
// append expr column to the end
colNames = append(colNames, v.colName)
exprColVals = append(exprColVals, v.expr)
}
colPlaces := strings.Repeat("?, ", len(colNames)-len(exprColumns))
if len(exprColVals) > 0 {
colPlaces = colPlaces + strings.Join(exprColVals, ", ")
} else {
if len(colPlaces) > 0 {
colPlaces = colPlaces[0 : len(colPlaces)-2]
}
}
var sqlStr string
var tableName = session.statement.TableName()
if len(colPlaces) > 0 {
sqlStr = fmt.Sprintf("INSERT INTO %s (%v%v%v) VALUES (%v)",
session.engine.Quote(tableName),
session.engine.QuoteStr(),
strings.Join(colNames, session.engine.Quote(", ")),
session.engine.QuoteStr(),
colPlaces)
} else {
if session.engine.dialect.DBType() == core.MYSQL {
sqlStr = fmt.Sprintf("INSERT INTO %s VALUES ()", session.engine.Quote(tableName))
} else {
sqlStr = fmt.Sprintf("INSERT INTO %s DEFAULT VALUES", session.engine.Quote(tableName))
}
}
handleAfterInsertProcessorFunc := func(bean interface{}) {
if session.isAutoCommit {
for _, closure := range session.afterClosures {
closure(bean)
}
if processor, ok := interface{}(bean).(AfterInsertProcessor); ok {
processor.AfterInsert()
}
} else {
lenAfterClosures := len(session.afterClosures)
if lenAfterClosures > 0 {
if value, has := session.afterInsertBeans[bean]; has && value != nil {
*value = append(*value, session.afterClosures...)
} else {
afterClosures := make([]func(interface{}), lenAfterClosures)
copy(afterClosures, session.afterClosures)
session.afterInsertBeans[bean] = &afterClosures
}
} else {
if _, ok := interface{}(bean).(AfterInsertProcessor); ok {
session.afterInsertBeans[bean] = nil
}
}
}
cleanupProcessorsClosures(&session.afterClosures) // cleanup after used
}
// for postgres, many of them didn't implement lastInsertId, so we should
// implemented it ourself.
if session.engine.dialect.DBType() == core.ORACLE && len(table.AutoIncrement) > 0 {
res, err := session.queryBytes("select seq_atable.currval from dual", args...)
if err != nil {
return 0, err
}
defer handleAfterInsertProcessorFunc(bean)
session.cacheInsert(tableName)
if table.Version != "" && session.statement.checkVersion {
verValue, err := table.VersionColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
} else if verValue.IsValid() && verValue.CanSet() {
verValue.SetInt(1)
}
}
if len(res) < 1 {
return 0, errors.New("insert no error but not returned id")
}
idByte := res[0][table.AutoIncrement]
id, err := strconv.ParseInt(string(idByte), 10, 64)
if err != nil || id <= 0 {
return 1, err
}
aiValue, err := table.AutoIncrColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
}
if aiValue == nil || !aiValue.IsValid() || !aiValue.CanSet() {
return 1, nil
}
aiValue.Set(int64ToIntValue(id, aiValue.Type()))
return 1, nil
} else if session.engine.dialect.DBType() == core.POSTGRES && len(table.AutoIncrement) > 0 {
//assert table.AutoIncrement != ""
sqlStr = sqlStr + " RETURNING " + session.engine.Quote(table.AutoIncrement)
res, err := session.queryBytes(sqlStr, args...)
if err != nil {
return 0, err
}
defer handleAfterInsertProcessorFunc(bean)
session.cacheInsert(tableName)
if table.Version != "" && session.statement.checkVersion {
verValue, err := table.VersionColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
} else if verValue.IsValid() && verValue.CanSet() {
verValue.SetInt(1)
}
}
if len(res) < 1 {
return 0, errors.New("insert no error but not returned id")
}
idByte := res[0][table.AutoIncrement]
id, err := strconv.ParseInt(string(idByte), 10, 64)
if err != nil || id <= 0 {
return 1, err
}
aiValue, err := table.AutoIncrColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
}
if aiValue == nil || !aiValue.IsValid() || !aiValue.CanSet() {
return 1, nil
}
aiValue.Set(int64ToIntValue(id, aiValue.Type()))
return 1, nil
} else {
res, err := session.exec(sqlStr, args...)
if err != nil {
return 0, err
}
defer handleAfterInsertProcessorFunc(bean)
session.cacheInsert(tableName)
if table.Version != "" && session.statement.checkVersion {
verValue, err := table.VersionColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
} else if verValue.IsValid() && verValue.CanSet() {
verValue.SetInt(1)
}
}
if table.AutoIncrement == "" {
return res.RowsAffected()
}
var id int64
id, err = res.LastInsertId()
if err != nil || id <= 0 {
return res.RowsAffected()
}
aiValue, err := table.AutoIncrColumn().ValueOf(bean)
if err != nil {
session.engine.logger.Error(err)
}
if aiValue == nil || !aiValue.IsValid() || !aiValue.CanSet() {
return res.RowsAffected()
}
aiValue.Set(int64ToIntValue(id, aiValue.Type()))
return res.RowsAffected()
}
}
// InsertOne insert only one struct into database as a record.
// The in parameter bean must a struct or a point to struct. The return
// parameter is inserted and error
func (session *Session) InsertOne(bean interface{}) (int64, error) {
if session.isAutoClose {
defer session.Close()
}
return session.innerInsert(bean)
}
func (session *Session) cacheInsert(table string) error {
if !session.statement.UseCache {
return nil
}
cacher := session.engine.getCacher(table)
if cacher == nil {
return nil
}
session.engine.logger.Debug("[cache] clear sql:", table)
cacher.ClearIds(table)
return nil
}
// genInsertColumns generates insert needed columns
func (session *Session) genInsertColumns(bean interface{}) ([]string, []interface{}, error) {
table := session.statement.RefTable
colNames := make([]string, 0, len(table.ColumnsSeq()))
args := make([]interface{}, 0, len(table.ColumnsSeq()))
for _, col := range table.Columns() {
if col.MapType == core.ONLYFROMDB {
continue
}
if col.IsDeleted {
continue
}
if session.statement.omitColumnMap.contain(col.Name) {
continue
}
if len(session.statement.columnMap) > 0 && !session.statement.columnMap.contain(col.Name) {
continue
}
if _, ok := session.statement.incrColumns[col.Name]; ok {
continue
} else if _, ok := session.statement.decrColumns[col.Name]; ok {
continue
}
fieldValuePtr, err := col.ValueOf(bean)
if err != nil {
return nil, nil, err
}
fieldValue := *fieldValuePtr
if col.IsAutoIncrement {
switch fieldValue.Type().Kind() {
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int, reflect.Int64:
if fieldValue.Int() == 0 {
continue
}
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint, reflect.Uint64:
if fieldValue.Uint() == 0 {
continue
}
case reflect.String:
if len(fieldValue.String()) == 0 {
continue
}
case reflect.Ptr:
if fieldValue.Pointer() == 0 {
continue
}
}
}
// !evalphobia! set fieldValue as nil when column is nullable and zero-value
if _, ok := getFlagForColumn(session.statement.nullableMap, col); ok {
if col.Nullable && isZero(fieldValue.Interface()) {
var nilValue *int
fieldValue = reflect.ValueOf(nilValue)
}
}
if (col.IsCreated || col.IsUpdated) && session.statement.UseAutoTime /*&& isZero(fieldValue.Interface())*/ {
// if time is non-empty, then set to auto time
val, t := session.engine.nowTime(col)
args = append(args, val)
var colName = col.Name
session.afterClosures = append(session.afterClosures, func(bean interface{}) {
col := table.GetColumn(colName)
setColumnTime(bean, col, t)
})
} else if col.IsVersion && session.statement.checkVersion {
args = append(args, 1)
} else {
arg, err := session.value2Interface(col, fieldValue)
if err != nil {
return colNames, args, err
}
args = append(args, arg)
}
colNames = append(colNames, col.Name)
}
return colNames, args, nil
}