+ Add a default language option so this language will be used as a fallback in case of no current language transaction exist for any string.

+ Add translation to "auto_code_package.go" in server module.
+ Add translation to "auto_code_plugin.go" in server module.
+ Add translation to "request.js" in web module.
+ Add translation to "sysDictionary.vue" in web module.
+ Rearrange translations file for web module.

server/utils/translate/translator.go

@@ -10,9 +10,10 @@ import (
 )
 
 type Translator struct {
-	IsInit    bool // check if translator initialized or not
-	bundle    *i18n.Bundle
-	localizer *i18n.Localizer
+	IsInit           bool // check if translator initialized or not
+	bundle           *i18n.Bundle
+	localizer        *i18n.Localizer
+	defaultLocalizer *i18n.Localizer
 }
 
 // func (t *Translator) InitTranslator(initLang string) {
@@ -51,14 +52,51 @@ func (t *Translator) InitTranslator(initLang string, langPath string) {
 	// end of adding
 }
 
+func (t *Translator) InitTranslatorEx(initLang string, defaultLang string, langPath string) {
+
+	langFiles, err := ioutil.ReadDir(langPath)
+	if err != nil {
+		fmt.Printf("InitTranslator() Error: %v", err)
+	}
+
+	t.bundle = i18n.NewBundle(language.English)
+	t.bundle.RegisterUnmarshalFunc("json", json.Unmarshal)
+
+	for _, langFile := range langFiles {
+		if !langFile.IsDir() {
+			langFilePath := langPath + langFile.Name()
+			fmt.Printf("Language file: %s loaded.\r\n", langFilePath)
+			t.bundle.MustLoadMessageFile(langFilePath)
+		}
+	}
+
+	t.localizer = i18n.NewLocalizer(t.bundle, initLang) // should add additionl check here
+
+	if defaultLang != "" {
+		t.defaultLocalizer = i18n.NewLocalizer(t.bundle, defaultLang) // should add additionl check here
+	} else {
+		t.defaultLocalizer = i18n.NewLocalizer(t.bundle, "zh") // set default langauge as chinese in case of there is no transalation found
+	}
+
+	t.IsInit = true
+	// end of adding
+}
+
 func (t *Translator) SetTranslatorLanguage(lang string) {
 	t.localizer = i18n.NewLocalizer(t.bundle, lang)
 }
 
+func (t *Translator) SetTranslatorDefaultLanguage(lang string) {
+	t.defaultLocalizer = i18n.NewLocalizer(t.bundle, lang)
+}
+
 func (t *Translator) TranslateMessage(messageID string) string {
 	translatedMsg, err := t.localizer.LocalizeMessage(&i18n.Message{ID: messageID})
-	if err != nil {
-		return messageID
+	if err != nil || translatedMsg == "" { // if translation fail use default language transalator
+		translatedMsg, err = t.defaultLocalizer.LocalizeMessage(&i18n.Message{ID: messageID})
+		if err != nil {
+			return messageID
+		}
 	}
 	//return t.localizer.MustLocalize(&i18n.LocalizeConfig{MessageID: messageID})
 	return translatedMsg