add NullType

README.md

@@ -281,6 +281,9 @@ has, err := db.Sql("select * from article where id=?", 2).Get(&valuesMap1)
 var valuesMap2 = make(map[string]interface{})
 has, err := db.Sql("select * from article where id=?", 2).Get(&valuesMap2)
 
+var valuesMap3 = make(map[string]xorm.Value)
+has, err := db.Sql("select * from article where id=?", 2).Get(&valuesMap3)
+
 //获得单条数据某个字段的值
 var title string
 has, err := db.Sql("select title from article where id=?", 2).Get(&title)

session_get.go

@@ -96,6 +96,23 @@ func (session *Session) nocacheGet(beanKind reflect.Kind, table *core.Table, bea
 		return true, rows.Scan(&bean)
 	case *sql.NullInt64, *sql.NullBool, *sql.NullFloat64, *sql.NullString:
 		return true, rows.Scan(bean)
+	case *map[string]Value:
+		vv := reflect.ValueOf(bean)
+		if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Map {
+			return true, errors.New("dest should be a map's pointer")
+		}
+		vvv := vv.Elem()
+		tbean := make(map[string][]byte)
+		err = rows.ScanMap(&tbean)
+		if err != nil {
+			return true, err
+		}
+
+		for k, v := range tbean {
+			vvv.SetMapIndex(reflect.ValueOf(k), reflect.ValueOf(Value(v)))
+		}
+
+		return true, nil
 	}
 
 	switch beanKind {

session_plus.go

@@ -12,7 +12,6 @@ import (
 	"reflect"
 	"regexp"
 	"strings"
-	"time"
 
 	"github.com/Chronokeeper/anyxml"
 	"github.com/xormplus/core"
@@ -102,75 +101,6 @@ func (resultBean *ResultBean) XmlIndent(prefix string, indent string, recordTag
 	return resultBean.Has, string(resultByte), err
 }
 
-type Value []byte
-
-func (v Value) Bytes() []byte {
-	return []byte(v)
-}
-
-func (v Value) String() string {
-	return string(v)
-}
-
-func (v Value) Bool() bool {
-	return Bool(v)
-}
-
-func (v Value) Int() int {
-	return Int(v)
-}
-
-func (v Value) Int8() int8 {
-	return Int8(v)
-}
-
-func (v Value) Int16() int16 {
-	return Int16(v)
-}
-
-func (v Value) Int32() int32 {
-	return Int32(v)
-}
-
-func (v Value) Int64() int64 {
-	return Int64(v)
-}
-
-func (v Value) Uint() uint {
-	return Uint(v)
-}
-
-func (v Value) Uint8() uint8 {
-	return Uint8(v)
-}
-
-func (v Value) Uint16() uint16 {
-	return Uint16(v)
-}
-
-func (v Value) Uint32() uint32 {
-	return Uint32(v)
-}
-
-func (v Value) Uint64() uint64 {
-	return Uint64(v)
-}
-
-func (v Value) Float32() float32 {
-	return Float32(v)
-}
-
-func (v Value) Float64() float64 {
-	return Float64(v)
-}
-
-func (v Value) Time(format string, TZLocation ...*time.Location) time.Time {
-	return Time(v, format, TZLocation...)
-}
-func (v Value) TimeDuration() time.Duration {
-	return TimeDuration(v)
-}
-
 type ResultMap struct {
 	Results []map[string]interface{}
 	Error   error

session_raw.go

@@ -144,9 +144,8 @@ func row2mapValue(rows *core.Rows, fields []string) (resultsMap map[string]Value
 
 	for ii, key := range fields {
 		rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[ii]))
-		//if row is null then ignore
 		if rawValue.Interface() == nil {
-			result[key] = []byte{}
+			result[key] = nil
 			continue
 		}