bug fixed for update which includes json struct fields

VERSION

@@ -1 +1 @@
-xorm v0.4.4.1027
+xorm v0.4.4.1029

statement.go

@@ -332,6 +332,7 @@ func buildUpdates(engine *Engine, table *core.Table, bean interface{},
 			} else if nulType, ok := fieldValue.Interface().(driver.Valuer); ok {
 				val, _ = nulType.Value()
 			} else {
+				if !col.SQLType.IsJson() {
 					engine.autoMapType(fieldValue)
 					if table, ok := engine.Tables[fieldValue.Type()]; ok {
 						if len(table.PrimaryKeys) == 1 {
@@ -350,6 +351,17 @@ func buildUpdates(engine *Engine, table *core.Table, bean interface{},
 					} else {
 						val = fieldValue.Interface()
 					}
+				} else {
+					bytes, err := json.Marshal(fieldValue.Interface())
+					if err != nil {
+						panic(fmt.Sprintf("mashal %v failed", fieldValue.Interface()))
+					}
+					if col.SQLType.IsText() {
+						val = string(bytes)
+					} else if col.SQLType.IsBlob() {
+						val = bytes
+					}
+				}
 			}
 		case reflect.Array, reflect.Slice, reflect.Map:
 			if fieldValue == reflect.Zero(fieldType) {

xorm.go

@@ -17,7 +17,7 @@ import (
 )
 
 const (
-	Version string = "0.4.4.1027"
+	Version string = "0.4.4.1029"
 )
 
 func regDrvsNDialects() bool {