Optimized session._row2bean function

session.go

@@ -1606,23 +1606,20 @@ func (session *Session) dropAll() error {
 	return nil
 }
 
-func (session *Session) getField(dataStruct *reflect.Value, key string, table *core.Table, idx int) *reflect.Value {
-	var col *core.Column
-	if col = table.GetColumnIdx(key, idx); col == nil {
-		//session.Engine.logger.Warnf("table %v has no column %v. %v", table.Name, key, table.ColumnsSeq())
-		return nil
-	}
+func (session *Session) getField(dataStruct *reflect.Value, table *core.Table, col *core.Column) *reflect.Value {
 
 	fieldValue, err := col.ValueOfV(dataStruct)
+
 	if err != nil {
 		session.Engine.logger.Error(err)
 		return nil
 	}
 
 	if !fieldValue.IsValid() || !fieldValue.CanSet() {
-		session.Engine.logger.Warnf("table %v's column %v is not valid or cannot set", table.Name, key)
+		session.Engine.logger.Warnf("Table %v's column %v is not valid or cannot be set", table.Name, col.Name)
 		return nil
 	}
+
 	return fieldValue
 }
 
@@ -1656,6 +1653,24 @@ func (session *Session) row2Bean(rows *core.Rows, fields []string, fieldsCount i
 	return session._row2Bean(rows, fields, fieldsCount, bean, &dataStruct, session.Statement.RefTable)
 }
 
+func (session *Session) getColumnNdx(m map[string]int, name string) int {
+
+	n := len(name)
+
+	for k := range m {
+		if len(k) != n {
+			continue
+		}
+		if strings.EqualFold(k, name) {
+			m[k] = m[k] + 1
+			return m[k]
+		}
+	}
+
+	m[name] = 0
+	return 0
+}
+
 func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount int, bean interface{}, dataStruct *reflect.Value, table *core.Table) error {
 	scanResults := make([]interface{}, fieldsCount)
 	for i := 0; i < len(fields); i++ {
@@ -1680,19 +1695,24 @@ func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount
 		}
 	}()
 
-	var tempMap = make(map[string]int)
-	for ii, key := range fields {
-		var idx int
-		var ok bool
-		var lKey = strings.ToLower(key)
-		if idx, ok = tempMap[lKey]; !ok {
-			idx = 0
-		} else {
-			idx = idx + 1
-		}
-		tempMap[lKey] = idx
+	var ndx int
+	var col *core.Column
+	var fieldValue *reflect.Value
+	var mColumnNdx = make(map[string]int)
+
+	for ii, key := range fields {
+
+		ndx = session.getColumnNdx(mColumnNdx, key)
+
+		if col = table.GetColumnIdx(key, ndx); col == nil {
+			//session.Engine.logger.Warnf("table %v has no column %v. %v", table.Name, key, table.ColumnsSeq())
+			continue
+		}
+
+		if fieldValue = session.getField(dataStruct, table, col); fieldValue == nil {
+			continue
+		}
 
-		if fieldValue := session.getField(dataStruct, key, table, idx); fieldValue != nil {
 		rawValue := reflect.Indirect(reflect.ValueOf(scanResults[ii]))
 
 		// if row is null then ignore
@@ -1728,7 +1748,6 @@ func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount
 
 		fieldType := fieldValue.Type()
 		hasAssigned := false
-			col := table.GetColumnIdx(key, idx)
 
 		if col.SQLType.IsJson() {
 			var bs []byte
@@ -2119,7 +2138,6 @@ func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount
 			}
 		}
 	}
-	}
 	return nil
 
 }