rename ScanStruct to ScanStructByIndex and ScanStruct2 to ScanStructByName

db.go

@@ -252,7 +252,7 @@ type Rows struct {
 }
 
 // scan data to a struct's pointer according field index
-func (rs *Rows) ScanStruct(dest ...interface{}) error {
+func (rs *Rows) ScanStructByIndex(dest ...interface{}) error {
 	if len(dest) == 0 {
 		return errors.New("at least one struct")
 	}
@@ -319,7 +319,7 @@ func fieldByName(v reflect.Value, name string) reflect.Value {
 }
 
 // scan data to a struct's pointer according field name
-func (rs *Rows) ScanStruct2(dest interface{}) error {
+func (rs *Rows) ScanStructByName(dest interface{}) error {
 	vv := reflect.ValueOf(dest)
 	if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Struct {
 		return errors.New("dest should be a struct's pointer")