Simple and Powerful ORM for Go, support mysql,postgres,tidb,sqlite3,mssql,oracle https://xorm.io
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// Copyright 2017 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"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"time"
"xorm.io/xorm/convert"
"xorm.io/xorm/internal/json"
"xorm.io/xorm/internal/utils"
"xorm.io/xorm/schemas"
)
func (session *Session) str2Time(col *schemas.Column, data string) (outTime time.Time, outErr error) {
sdata := strings.TrimSpace(data)
var x time.Time
var err error
var parseLoc = session.engine.DatabaseTZ
if col.TimeZone != nil {
parseLoc = col.TimeZone
}
if sdata == utils.ZeroTime0 || sdata == utils.ZeroTime1 {
} else if !strings.ContainsAny(sdata, "- :") { // !nashtsai! has only found that mymysql driver is using this for time type column
// time stamp
sd, err := strconv.ParseInt(sdata, 10, 64)
if err == nil {
x = time.Unix(sd, 0)
//session.engine.logger.Debugf("time(0) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else {
//session.engine.logger.Debugf("time(0) err key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
} else if len(sdata) > 19 && strings.Contains(sdata, "-") {
x, err = time.ParseInLocation(time.RFC3339Nano, sdata, parseLoc)
session.engine.logger.Debugf("time(1) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
if err != nil {
x, err = time.ParseInLocation("2006-01-02 15:04:05.999999999", sdata, parseLoc)
//session.engine.logger.Debugf("time(2) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
if err != nil {
x, err = time.ParseInLocation("2006-01-02 15:04:05.9999999 Z07:00", sdata, parseLoc)
//session.engine.logger.Debugf("time(3) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
} else if len(sdata) == 19 && strings.Contains(sdata, "-") {
x, err = time.ParseInLocation("2006-01-02 15:04:05", sdata, parseLoc)
//session.engine.logger.Debugf("time(4) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else if len(sdata) == 10 && sdata[4] == '-' && sdata[7] == '-' {
x, err = time.ParseInLocation("2006-01-02", sdata, parseLoc)
//session.engine.logger.Debugf("time(5) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else if col.SQLType.Name == schemas.Time {
if strings.Contains(sdata, " ") {
ssd := strings.Split(sdata, " ")
sdata = ssd[1]
}
sdata = strings.TrimSpace(sdata)
if session.engine.dialect.URI().DBType == schemas.MYSQL && len(sdata) > 8 {
sdata = sdata[len(sdata)-8:]
}
st := fmt.Sprintf("2006-01-02 %v", sdata)
x, err = time.ParseInLocation("2006-01-02 15:04:05", st, parseLoc)
//session.engine.logger.Debugf("time(6) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else {
outErr = fmt.Errorf("unsupported time format %v", sdata)
return
}
if err != nil {
outErr = fmt.Errorf("unsupported time format %v: %v", sdata, err)
return
}
outTime = x.In(session.engine.TZLocation)
return
}
func (session *Session) byte2Time(col *schemas.Column, data []byte) (outTime time.Time, outErr error) {
return session.str2Time(col, string(data))
}
// convert a db data([]byte) to a field value
func (session *Session) bytes2Value(col *schemas.Column, fieldValue *reflect.Value, data []byte) error {
if structConvert, ok := fieldValue.Addr().Interface().(convert.Conversion); ok {
return structConvert.FromDB(data)
}
if structConvert, ok := fieldValue.Interface().(convert.Conversion); ok {
return structConvert.FromDB(data)
}
var v interface{}
key := col.Name
fieldType := fieldValue.Type()
switch fieldType.Kind() {
case reflect.Complex64, reflect.Complex128:
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
case reflect.Slice, reflect.Array, reflect.Map:
v = data
t := fieldType.Elem()
k := t.Kind()
if col.SQLType.IsText() {
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
} else if col.SQLType.IsBlob() {
if k == reflect.Uint8 {
fieldValue.Set(reflect.ValueOf(v))
} else {
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
}
} else {
return ErrUnSupportedType
}
case reflect.String:
fieldValue.SetString(string(data))
case reflect.Bool:
v, err := asBool(data)
if err != nil {
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(v))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
sdata := string(data)
var x int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
session.engine.dialect.URI().DBType == schemas.MYSQL { // !nashtsai! TODO dialect needs to provide conversion interface API
if len(data) == 1 {
x = int64(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x, err = strconv.ParseInt(sdata, 16, 64)
} else if strings.HasPrefix(sdata, "0") {
x, err = strconv.ParseInt(sdata, 8, 64)
} else if strings.EqualFold(sdata, "true") {
x = 1
} else if strings.EqualFold(sdata, "false") {
x = 0
} else {
x, err = strconv.ParseInt(sdata, 10, 64)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.SetInt(x)
case reflect.Float32, reflect.Float64:
x, err := strconv.ParseFloat(string(data), 64)
if err != nil {
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
}
fieldValue.SetFloat(x)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
x, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.SetUint(x)
//Currently only support Time type
case reflect.Struct:
// !<winxxp>! 增加支持sql.Scanner接口的结构,如sql.NullString
if nulVal, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
if err := nulVal.Scan(data); err != nil {
return fmt.Errorf("sql.Scan(%v) failed: %s ", data, err.Error())
}
} else {
if fieldType.ConvertibleTo(schemas.TimeType) {
x, err := session.byte2Time(col, data)
if err != nil {
return err
}
v = x
fieldValue.Set(reflect.ValueOf(v).Convert(fieldType))
} else if session.statement.UseCascade {
table, err := session.engine.tagParser.ParseWithCache(*fieldValue)
if err != nil {
return err
}
// TODO: current only support 1 primary key
if len(table.PrimaryKeys) > 1 {
return errors.New("unsupported composited primary key cascade")
}
var pk = make(schemas.PK, len(table.PrimaryKeys))
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
pk[0], err = str2PK(string(data), rawValueType)
if err != nil {
return err
}
if !pk.IsZero() {
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
// property to be fetched lazily
structInter := reflect.New(fieldValue.Type())
has, err := session.ID(pk).NoCascade().get(structInter.Interface())
if err != nil {
return err
}
if has {
v = structInter.Elem().Interface()
fieldValue.Set(reflect.ValueOf(v))
} else {
return errors.New("cascade obj is not exist")
}
}
}
}
case reflect.Ptr:
// !nashtsai! TODO merge duplicated codes above
//typeStr := fieldType.String()
switch fieldType.Elem().Kind() {
// case "*string":
case schemas.StringType.Kind():
x := string(data)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*bool":
case schemas.BoolType.Kind():
d := string(data)
v, err := strconv.ParseBool(d)
if err != nil {
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&v).Convert(fieldType))
// case "*complex64":
case schemas.Complex64Type.Kind():
var x complex64
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, &x)
if err != nil {
return err
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
}
// case "*complex128":
case schemas.Complex128Type.Kind():
var x complex128
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, &x)
if err != nil {
return err
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
}
// case "*float64":
case schemas.Float64Type.Kind():
x, err := strconv.ParseFloat(string(data), 64)
if err != nil {
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*float32":
case schemas.Float32Type.Kind():
var x float32
x1, err := strconv.ParseFloat(string(data), 32)
if err != nil {
return fmt.Errorf("arg %v as float32: %s", key, err.Error())
}
x = float32(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint64":
case schemas.Uint64Type.Kind():
var x uint64
x, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint":
case schemas.UintType.Kind():
var x uint
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint32":
case schemas.Uint32Type.Kind():
var x uint32
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint32(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint8":
case schemas.Uint8Type.Kind():
var x uint8
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint8(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint16":
case schemas.Uint16Type.Kind():
var x uint16
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint16(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int64":
case schemas.Int64Type.Kind():
sdata := string(data)
var x int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int64(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x, err = strconv.ParseInt(sdata, 16, 64)
} else if strings.HasPrefix(sdata, "0") {
x, err = strconv.ParseInt(sdata, 8, 64)
} else {
x, err = strconv.ParseInt(sdata, 10, 64)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int":
case schemas.IntType.Kind():
sdata := string(data)
var x int
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int32":
case schemas.Int32Type.Kind():
sdata := string(data)
var x int32
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
session.engine.dialect.URI().DBType == schemas.MYSQL {
if len(data) == 1 {
x = int32(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int32(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int32(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int32(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int8":
case schemas.Int8Type.Kind():
sdata := string(data)
var x int8
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int8(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int8(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int8(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int8(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int16":
case schemas.Int16Type.Kind():
sdata := string(data)
var x int16
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int16(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int16(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int16(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int16(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*SomeStruct":
case reflect.Struct:
switch fieldType {
// case "*.time.Time":
case schemas.PtrTimeType:
x, err := session.byte2Time(col, data)
if err != nil {
return err
}
v = x
fieldValue.Set(reflect.ValueOf(&x))
default:
if session.statement.UseCascade {
structInter := reflect.New(fieldType.Elem())
table, err := session.engine.tagParser.ParseWithCache(structInter.Elem())
if err != nil {
return err
}
if len(table.PrimaryKeys) > 1 {
return errors.New("unsupported composited primary key cascade")
}
var pk = make(schemas.PK, len(table.PrimaryKeys))
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
pk[0], err = str2PK(string(data), rawValueType)
if err != nil {
return err
}
if !pk.IsZero() {
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
// property to be fetched lazily
has, err := session.ID(pk).NoCascade().get(structInter.Interface())
if err != nil {
return err
}
if has {
v = structInter.Interface()
fieldValue.Set(reflect.ValueOf(v))
} else {
return errors.New("cascade obj is not exist")
}
}
} else {
return fmt.Errorf("unsupported struct type in Scan: %s", fieldValue.Type().String())
}
}
default:
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
}
default:
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
}
return nil
}